| IATA | ICAO | Airport name | Location served | Time | DST |
| -KA- |
| KAA | FLKS | Kasama Airport | Kasama, Zambia | UTC+02:00 | |
| KAB | FVKB | Kariba Airport | Kariba, Zimbabwe | UTC+02:00 | |
| KAC | OSKL | Kamishly Airport | Qamishli (Kamishly), Syria | UTC+02:00 | Mar–Oct |
| KAD | DNKA | Kaduna Airport | Kaduna, Nigeria | UTC+01:00 | |
| KAE | | Kake Seaplane Base | Kake, Alaska, United States | UTC−09:00 | Mar–Nov |
| KAF | | Karato Airport | Karato, Papua New Guinea | UTC+11:00 | |
| KAG | RKNN | Gangneung Air Base | Gangneung, South Korea | UTC+09:00 | |
| KAI | SYKA | Kaieteur International Airport | Kaieteur, Guyana | UTC−04:00 | |
| KAJ | EFKI | Kajaani Airport | Kajaani, Finland | UTC+02:00 | Mar–Oct |
| KAK | | Kar Airport | Kar, Papua New Guinea | UTC+10:00 | |
| KAL | PAKV | Kaltag Airport | Kaltag, Alaska, United States | UTC−09:00 | Mar–Nov |
| KAM | ODKM | Kamaran Airport | Kamaran, Yemen | UTC+03:00 | |
| KAN | DNKN | Mallam Aminu Kano International Airport | Kano, Nigeria | UTC+01:00 | |
| KAO | EFKS | Kuusamo Airport | Kuusamo, Finland | UTC+02:00 | Mar–Oct |
| KAP | FZSK | Kapanga Airport | Kapanga, Democratic Republic of the Congo | UTC+02:00 | |
| KAQ | AYKH | Kamulai Airport[1] | Kamulai, Papua New Guinea | UTC+10:00 | |
| KAR | SYKM | Kamarang Airport | Kamarang, Guyana | UTC−04:00 | |
| KAS | FYKB | Karasburg Airport | Karasburg, Namibia | UTC+01:00 | Sep–Apr |
| KAT | NZKT | Kaitaia Airport | Kaitaia, New Zealand | UTC+12:00 | Sep–Apr |
| KAU | EFKA | Kauhava Airfield | Kauhava, Finland | UTC+02:00 | Mar–Oct |
| KAV | SVKA | Kavanayén Airport | Kavanayén, Venezuela | UTC−04:00 | |
| KAW | VYKT | Kawthaung Airport | Kawthaung, Myanmar | UTC+06:30 | |
| KAX | YKBR | Kalbarri Airport | Kalbarri, Western Australia, Australia | UTC+08:00 | |
| KAY | NFNW | Wakaya Airport | Wakaya Island, Fiji | UTC+12:00 | Nov–Jan |
| KAZ | WAMK | Kuabang Airport | Kao, Indonesia | UTC+09:00 | |
| -KB- |
| KBA | GFKB | Kabala Airport | Kabala, Sierra Leone | UTC±00:00 | |
| KBB | | Kirkimbie Airport[1] | Kirkimbie Station, Northern Territory, Australia | UTC+09:30 | |
| KBC | | Birch Creek Airport (FAA: Z91) | Birch Creek, Alaska, United States | UTC−09:00 | Mar–Nov |
| KBD | | Kimberley Downs Airport | Kimberley Downs, Western Australia, Australia | UTC+08:00 | |
| KBE | | Bell Island Hot Springs Seaplane Base | Bell Island, Alaska, United States | UTC−09:00 | Mar–Nov |
| KBF | WABK | Karubaga Airport | Karubaga, Indonesia | UTC+09:00 | |
| KBG | HUKF | Kabalega Falls Airport | Kabalega Falls, Uganda | UTC+03:00 | |
| KBI | FKKB | Kribi Airport | Kribi, Cameroon | UTC+01:00 | |
| KBJ | YKCA | Kings Canyon Airport | Kings Canyon, Northern Territory, Australia | UTC+09:30 | |
| KBL | OAKB | Kabul International Airport | Kabul, Afghanistan | UTC+04:30 | |
| KBM | AYKB | Kabwum Airport | Kabwum, Papua New Guinea | UTC+10:00 | |
| KBN | FZWT | Tunta Airport | Kabinda, Democratic Republic of the Congo | UTC+01:00 | |
| KBO | FZRM | Kabalo Airport | Kabalo, Democratic Republic of the Congo | UTC+02:00 | |
| KBP | UKBB | Boryspil International Airport | Kyiv, Ukraine | UTC+02:00 | Mar–Oct |
| KBQ | FWKG | Kasungu Airport | Kasungu, Malawi | UTC+02:00 | |
| KBR | WMKC | Sultan Ismail Petra Airport | Kota Bharu, Kelantan, Malaysia | UTC+08:00 | |
| KBS | GFBO | Bo Airport | Bo, Sierra Leone | UTC±00:00 | |
| KBT | | Kaben Airport | Kaben, Maloelap Atoll, Marshall Islands | UTC+12:00 | |
| KBU | WRBK | Gusti Syamsir Alam Airport (Stagen Airport) | Kotabaru, Indonesia | UTC+07:00 | |
| KBV | VTSG | Krabi Airport | Krabi, Thailand | UTC+07:00 | |
| KBW | | Chignik Bay Seaplane Base (FAA: Z78) | Chignik, Alaska, United States | UTC−09:00 | Mar–Nov |
| KBX | WASU | Kambuaya Airport | Ayamaru, Indonesia | UTC+09:00 | |
| KBY | YKBY | Streaky Bay Airport | Streaky Bay, South Australia, Australia | UTC+09:30 | Oct–Apr |
| KBZ | NZKI | Kaikoura Aerodrome | Kaikōura, New Zealand | UTC+12:00 | Sep–Apr |
| -KC- |
| KCA | ZWKC | Kuqa Qiuci Airport | Kuqa, Xinjiang, China | UTC+06:00 | |
| KCB | SMTP | Tepoe Airstrip | Kasikasima, Suriname | UTC−03:00 | |
| KCC | | Coffman Cove Seaplane Base | Coffman Cove, Alaska, United States | UTC−09:00 | Mar–Nov |
| KCD | | Kamur Airport | Kamur, Indonesia | UTC+09:00 | |
| KCE | YCSV | Collinsville Airport | Collinsville, Queensland, Australia | UTC+10:00 | |
| KCF | | Kadanwari Airport | Kadanwari, Pakistan | UTC+05:00 | |
KCG | | Chignik Fisheries Airport (closed) | Chignik, Alaska, United States | | |
| KCH | WBGG | Kuching International Airport | Kuching, Sarawak, Malaysia | UTC+08:00 | |
| KCJ | | Komaio Airport | Komaio, Papua New Guinea | UTC+10:00 | |
| KCK | UIKK | Kirensk Airport | Kirensk, Irkutsk Oblast, Russia | UTC+08:00 | |
| KCL | | Chignik Lagoon Airport (Chignik Flats Airport) | Chignik Lagoon, Alaska, United States | UTC−09:00 | Mar–Nov |
| KCM | LTCN | Kahramanmaraş Airport | Kahramanmaraş, Turkey | UTC+03:00 | |
| KCN | | Chernofski Harbor Seaplane Base | Chernofski Harbor, Alaska, United States | UTC−09:00 | Mar–Nov |
| KCO | LTBQ | Cengiz Topel Naval Air Station | İzmit, Turkey | UTC+03:00 | |
| KCP | | Kamianets-Podilskyi Airport | Kamianets-Podilskyi, Ukraine | UTC+02:00 | Mar–Oct |
| KCQ | | Chignik Lake Airport (FAA: A79) | Chignik Lake, Alaska, United States | UTC−09:00 | Mar–Nov |
| KCR | | Colorado Creek Airport | Colorado Creek, Alaska, United States | UTC−09:00 | Mar–Nov |
| KCS | YKCS | Kings Creek Station Airport | Kings Creek Station, Northern Territory, Australia | UTC+09:30 | |
| KCT | VCCK | Koggala Airport | Koggala, Sri Lanka | UTC+05:30 | |
| KCU | HUMI | Masindi Airport | Masindi, Uganda | UTC+03:00 | |
| KCZ | RJOK | Kōchi Ryōma Airport | Kōchi, Shikoku, Japan | UTC+09:00 | |
| -KD- |
| KDA | GOGK | Kolda North Airport | Kolda, Senegal | UTC±00:00 | |
| KDB | YKBL | Kambalda Airport | Kambalda, Western Australia, Australia | UTC+08:00 | |
| KDC | DBBK | Kandi Airport | Kandi, Benin | UTC+01:00 | |
| KDD | OPKH | Khuzdar Airport | Khuzdar, Pakistan | UTC+05:00 | |
| KDE | AYOW | Koroba Airport | Koroba, Papua New Guinea | UTC+10:00 | |
| KDH | OAKN | Kandahar International Airport | Kandahar, Afghanistan | UTC+04:30 | |
| KDI | WAWW | Haluoleo Airport | Kendari, Indonesia | UTC+08:00 | |
| KDJ | FOGJ | Ndjolé Ville Airport | Ndjolé, Gabon | UTC+01:00 | |
| KDK | PAKD | Kodiak Municipal Airport | Kodiak, Alaska, United States | UTC−09:00 | Mar–Nov |
| KDL | EEKA | Kärdla Airport | Kärdla, Estonia | UTC+02:00 | Mar–Oct |
| KDM | VRMT | Kaadedhdhoo Airport | Kaadedhdhoo Island, Gaafu Dhaalu Atoll, Maldives | UTC+05:00 | |
| KDN | FOGE | Ndendé Airport | Ndendé, Gabon | UTC+01:00 | |
| KDO | VRMK | Kadhdhoo Airport | Kadhdhoo Island, Laamu Atoll, Maldives | UTC+05:00 | |
| KDP | AYNN | Kandep Airport | Kandep, Papua New Guinea | UTC+10:00 | |
| KDQ | AYTO | Kamberatoro Airport | Kamberatoro, Papua New Guinea | UTC+10:00 | |
| KDR | AYKC | Kandrian Airport | Kandrian, Papua New Guinea | UTC+10:00 | |
| KDS | | Kamaran Downs Airport | Kamaran Downs, Queensland, Australia | UTC+10:00 | |
| KDT | VTBK | Kamphaeng Saen Airport | Kamphaeng Saen, Thailand | UTC+07:00 | |
| KDU | OPSD | Skardu Airport | Skardu, Pakistan | UTC+05:00 | |
| KDV | NFKD | Vunisea Airport | Vunisea, Kadavu Island, Fiji | UTC+12:00 | Nov–Jan |
| KDW | | Victoria Reservoir Seaplane Base[1] | Kandy, Sri Lanka | UTC+05:30 | |
| KDX | HSLI | Kadugli Airport[1] | Kaduqli (Kadugli), Sudan | UTC+03:00 | |
| KDY | UEMH | Teply Klyuch Airport | Khandyga, Yakutia, Russia | UTC+09:00 | |
| KDZ | | Polgolla Reservoir Seaplane Base[1] | Kandy, Sri Lanka | UTC+05:30 | |
| -KE- |
| KEA | UTAE | Kerki Airport | Kerki, Turkmenistan | UTC+05:00 | |
| KEB | | Nanwalek Airport | Nanwalek, Alaska, United States | UTC−09:00 | Mar–Nov |
| KEC | FZQG | Kasenga Airport | Kasenga, Democratic Republic of the Congo | UTC+02:00 | |
| KED | GQNK | Kaédi Airport | Kaédi, Mauritania | UTC±00:00 | |
| KEE | FCOK | Kelle Airport | Kellé, Republic of the Congo | UTC+01:00 | |
| KEF | BIKF | Keflavík International Airport | Reykjavík, Iceland | UTC±00:00 | |
| KEG | AYLG | Keglsugl Airport | Keglsugl, Papua New Guinea | UTC+10:00 | |
| KEH | | Kenmore Air Harbor (FAA: S60) | Kenmore, Washington, United States | UTC−08:00 | Mar–Nov |
| KEI | WAKP | Kepi Airport | Kepi, Indonesia | UTC+09:00 | |
| KEJ | UNEE | Kemerovo International Airport | Kemerovo, Kemerovo Oblast, Russia | UTC+07:00 | |
| KEK | | Ekwok Airport | Ekwok, Alaska, United States | UTC−09:00 | Mar–Nov |
| KEL | EDHK | Kiel Airport | Kiel, Schleswig-Holstein, Germany | UTC+01:00 | Mar–Oct |
| KEM | EFKE | Kemi-Tornio Airport | Kemi / Tornio, Finland | UTC+02:00 | Mar–Oct |
| KEN | GFKE | Kenema Airport | Kenema, Sierra Leone | UTC±00:00 | |
| KEO | DIOD | Odienné Airport | Odienné, Ivory Coast | UTC±00:00 | |
| KEP | VNNG | Nepalgunj Airport | Nepalgunj, Nepal | UTC+05:45 | |
| KEQ | WASE | Kebar Airport | Kebar, Indonesia | UTC+09:00 | |
| KER | OIKK | Kerman Airport | Kerman, Iran | UTC+03:30 | Mar–Sep |
| KES | CZEE | Kelsey Airport | Kelsey, Manitoba, Canada | UTC−06:00 | Mar–Nov |
| KET | VYKG | Kengtung Airport | Kengtung, Myanmar | UTC+06:30 | |
| KEU | HKKE | Keekorok Airport[1] | Keekorok, Kenya | UTC+03:00 | |
| KEV | EFHA | Halli Airport | Kuorevesi, Finland | UTC+02:00 | Mar–Oct |
| KEW | | Keewaywin Airport (TC LID: CPV8) | Keewaywin, Ontario, Canada | UTC−06:00 | Mar–Nov |
| KEX | AYNB | Kanabea Airport | Kanabea, Papua New Guinea | UTC+10:00 | |
| KEY | HKKR | Kericho Airport | Kericho, Kenya | UTC+03:00 | |
| KEZ | | Kelani River-Peliyagoda Waterdrome[1] | Colombo, Sri Lanka | UTC+05:30 | |
| -KF- |
| KFA | GQNF | Kiffa Airport | Kiffa, Mauritania | UTC±00:00 | |
| KFE | YFDF | Fortescue Dave Forrest Airport | Cloudbreak, Western Australia, Australia | UTC+08:00 | |
| KFG | YKKG | Kalkgurung Airport | Kalkarindji, Northern Territory, Australia | UTC+09:30 | |
| KFM | | Kirby Lake Airport | Wood Buffalo, Alberta, Canada | UTC−06:00 | Mar–Nov |
| KFP | PAKF | False Pass Airport | False Pass, Alaska, United States | UTC−09:00 | Mar–Nov |
| KFS | LTAL | Kastamonu Airport | Kastamonu, Turkey | UTC+03:00 | |
| KFZ | LAKU | Kukës International Airport | Kukës, Albania | UTC+01:00 | Mar–Oct |
| -KG- |
| KGA | FZUA | Kananga Airport | Kananga, Democratic Republic of the Congo | UTC+02:00 | |
| KGB | AYOE | Konge Airport | Konge, Papua New Guinea | UTC+10:00 | |
| KGC | YKSC | Kingscote Airport | Cygnet River, South Australia, Australia | UTC+09:30 | Oct–Apr |
| KGD | UMKK | Khrabrovo Airport | Kaliningrad, Kaliningrad Oblast, Russia | UTC+02:00 | |
| KGE | AGKG | Kaghau Airport | Kaghau Island, Solomon Islands | UTC+11:00 | |
| KGF | UAKK | Sary-Arka Airport | Karaganda, Kazakhstan | UTC+06:00 | |
| KGG | GOTK | Kédougou Airport | Kédougou, Senegal | UTC±00:00 | |
| KGH | AYJO | Yongai Airport | Yongai, Papua New Guinea | UTC+10:00 | |
| KGI | YPKG | Kalgoorlie-Boulder Airport | Kalgoorlie, Western Australia, Australia | UTC+08:00 | |
| KGJ | FWKA | Karonga Airport | Karonga, Malawi | UTC+02:00 | |
| KGK | PAJZ | Koliganek Airport (FAA: JZZ) | Koliganek, Alaska, United States | UTC−09:00 | Mar–Nov |
| KGL | HRYR | Kigali International Airport (Kanombe Airport) | Kigali, Rwanda | UTC+02:00 | |
| KGM | | Kungim Airport[1] | Kungim, Papua New Guinea | UTC+10:00 | |
| KGN | FZOK | Kasongo Lunda Airport | Kasongo Lunda, Democratic Republic of the Congo | UTC+01:00 | |
| KGO | UKKG | Kirovohrad Airport | Kropyvnytskyi, Ukraine | UTC+02:00 | Mar–Oct |
| KGP | USRK | Kogalym International Airport | Kogalym, Khanty-Mansi Autonomous Okrug, Russia | UTC+05:00 | |
| KGR | | Kulgera Airport | Kulgera, Northern Territory, Australia | UTC+09:30 | |
| KGS | LGKO | Kos Island International Airport | Kos, Greece | UTC+02:00 | Mar–Oct |
| KGT | ZUKD | Kangding Airport[1] | Kangding, Sichuan, China | UTC+08:00 | |
| KGU | WBKG | Keningau Airport | Keningau, Sabah, Malaysia | UTC+08:00 | |
| KGW | AYKQ | Kagi Airport | Kagi, Papua New Guinea | UTC+10:00 | |
| KGX | PAGX | Grayling Airport | Grayling, Alaska, United States | UTC−09:00 | Mar–Nov |
| KGY | YKRY | Kingaroy Airport | Kingaroy, Queensland, Australia | UTC+10:00 | |
| KGZ | | Glacier Creek Airport | Glacier Creek, Alaska, United States | UTC−09:00 | Mar–Nov |
| -KH- |
| KHA | OITH | Khaneh Airport (Piranshahr Airport) | Piranshahr (Khaneh), Iran | UTC+03:30 | Mar–Sep |
| KHC | UKFK | Kerch Airport (Voykovo Airport) | Kerch, Ukraine | UTC+03:00 | |
| KHD | OICK | Khorramabad Airport | Khorramabad, Iran | UTC+03:30 | Mar–Sep |
| KHE | UKOH | Kherson International Airport | Kherson, Ukraine | UTC+02:00 | Mar–Oct |
| KHG | ZWSH | Kashgar Airport (Kashi Airport) | Kashgar, Xinjiang, China | UTC+06:00 | |
| KHH | RCKH | Kaohsiung International Airport | Kaohsiung, Taiwan | UTC+08:00 | |
| KHI | OPKC | Jinnah International Airport | Karachi, Pakistan | UTC+05:00 | |
| KHJ | EFKJ | Kauhajoki Airfield | Kauhajoki, Finland | UTC+02:00 | Mar–Oct |
| KHK | OIBQ | Kharg Airport | Kharg Island, Iran | UTC+03:30 | Mar–Sep |
| KHM | VYKI | Khamti Airport | Khamti, Myanmar | UTC+06:30 | |
| KHN | ZSCN | Nanchang Changbei International Airport | Nanchang, Jiangxi, China | UTC+08:00 | |
| KHO | | Khoka Moya Airport | Manyeleti, South Africa | UTC+02:00 | |
| KHR | ZMHH | Kharkhorin Airport | Kharkhorin, Mongolia | UTC+08:00 | Mar–Sep |
| KHS | OOKB | Khasab Airport | Khasab, Oman | UTC+04:00 | |
| KHT | OAKS | Khost Airfield | Khost, Afghanistan | UTC+04:30 | |
| KHU | | Kremenchuk Airport | Kremenchuk, Ukraine | UTC+02:00 | Mar–Oct |
| KHV | UHHH | Khabarovsk Novy Airport | Khabarovsk, Khabarovsk Krai, Russia | UTC+10:00 | |
| KHW | FBKR | Khwai River Airport | Khwai River Lodge, Botswana | UTC+02:00 | |
| KHX | | Kihihi Airstrip[1] | Kihihi, Uganda | UTC+03:00 | |
| KHY | OITK | Khoy Airport[1] | Khoy, Iran | UTC+03:30 | Mar–Sep |
| KHZ | NTKA | Kauehi Aerodrome | Kauehi, Tuamotus, French Polynesia | UTC−10:00 | |
| -KI- |
| KIA | | Kaiapit Airport | Kaiapit, Papua New Guinea | UTC+10:00 | |
| KIB | | Ivanof Bay Seaplane Base | Ivanof Bay, Alaska, United States | UTC−09:00 | Mar–Nov |
| KIC | KKIC | Mesa Del Rey Airport | King City, California, United States | UTC−08:00 | Mar–Nov |
| KID | ESMK | Kristianstad Airport | Kristianstad, Sweden | UTC+01:00 | Mar–Oct |
| KIE | AYIQ | Aropa Airport | Kieta, Papua New Guinea | UTC+11:00 | |
| KIF | | Kingfisher Lake Airport | Kingfisher Lake, Ontario, Canada | UTC−06:00 | Mar–Nov |
| KIG | | Koingnaas Airport | Koingnaas, South Africa | UTC+02:00 | |
| KIH | OIBK | Kish International Airport | Kish Island, Iran | UTC+03:30 | Mar–Sep |
| KII | AYLI | Kibuli Airport | Kibuli, Papua New Guinea | UTC+10:00 | |
| KIJ | RJSN | Niigata Airport | Niigata, Honshu, Japan | UTC+09:00 | |
| KIK | ORKK | Kirkuk Airport | Kirkuk, Iraq | UTC+03:00 | |
| KIL | | Kilwa Airport | Kilwa, Democratic Republic of the Congo | UTC+02:00 | |
| KIM | FAKM | Kimberley Airport | Kimberley, South Africa | UTC+02:00 | |
| KIN | MKJP | Norman Manley International Airport | Kingston, Jamaica | UTC−05:00 | |
| KIO | | Kili Airport (FAA: Q51) | Kili Island, Marshall Islands | UTC+12:00 | |
| KIP | KCWC | Kickapoo Downtown Airport (FAA: CWC) | Wichita Falls, Texas, United States | UTC−06:00 | Mar–Nov |
| KIQ | AYRA | Kira Airport | Kira, Papua New Guinea | UTC+10:00 | |
| KIR | EIKY | Kerry Airport (Farranfore Airport) | Kerry, Ireland | UTC±00:00 | Mar–Oct |
| KIS | HKKI | Kisumu International Airport | Kisumu, Kenya | UTC+03:00 | |
| KIT | LGKC | Kithira Island National Airport | Kythira, Greece | UTC+02:00 | Mar–Oct |
| KIU | | Kiunga Airport | Kiunga, Kenya | UTC+03:00 | |
| KIW | FLSO | Southdowns Airport | Kitwe, Zambia | UTC+02:00 | |
| KIX | RJBB | Kansai International Airport | Osaka, Honshu, Japan | UTC+09:00 | |
| KIY | HTKI | Kilwa Masoko Airport | Kilwa Masoko, Tanzania | UTC+03:00 | |
| KIZ | | Kikinonda Airport | Kikinonda, Papua New Guinea | UTC+10:00 | |
| -KJ- |
| KJA | UNKL | Yemelyanovo International Airport | Krasnoyarsk, Krasnoyarsk Krai, Russia | UTC+07:00 | |
| KJB | VOKU | Kurnool Airport | Orvakal, Andhra Pradesh, India | UTC+05:30 | |
| KJH | | Kaili Huangping Airport | Kaili, Guizhou, China | UTC+08:00 | |
| KJI | ZWKN | Kanas Airport | Burqin, Xinjiang, China | UTC+06:00 | |
| KJK | EBKT | Kortrijk–Wevelgem International Airport | Kortrijk, Belgium | UTC+01:00 | Mar–Oct |
| KJP | ROKR | Kerama Airport | Fukaji Island, Kerama Islands, Japan | UTC+09:00 | |
| KJT | WICA | Kertajati International Airport | Majalengka, West Java, Indonesia | UTC+07:00 | |
| KJU | | Kamiraba Airport | Kamiraba, Papua New Guinea | UTC+10:00 | |
| KJX | | Blangpidie Airport | Blangpidie, Southwest Aceh Regency, Indonesia | UTC+07:00 | |
| -KK- |
| KKA | PAKK | Koyuk Alfred Adams Airport | Koyuk, Alaska, United States | UTC−09:00 | Mar–Nov |
| KKB | | Kitoi Bay Seaplane Base | Kitoi Bay, Alaska, United States | UTC−09:00 | Mar–Nov |
| KKC | VTUK | Khon Kaen Airport | Khon Kaen, Thailand | UTC+07:00 | |
| KKD | AYKO | Kokoda Airport | Kokoda, Papua New Guinea | UTC+10:00 | |
| KKE | NZKK | Kerikeri Airport (Bay of Islands Airport) | Kerikeri, New Zealand | UTC+12:00 | Sep–Apr |
| KKG | | Konawaruk Airport | Konawaruk, Guyana | UTC−04:00 | |
| KKH | PADY | Kongiganak Airport (FAA: DUY) | Kongiganak, Alaska, United States | UTC−09:00 | Mar–Nov |
| KKI | | Akiachak Airport (FAA: Z13) | Akiachak, Alaska, United States | UTC−09:00 | Mar–Nov |
| KKJ | RJFR | Kitakyushu Airport | Kitakyushu, Kyushu, Japan | UTC+09:00 | |
| KKK | | Kalakaket Creek Air Station (FAA: 1KC) | Kalakaket Creek, Alaska, United States (Google Earth view) | UTC−09:00 | Mar–Nov |
| KKL | | Karluk Lake Seaplane Base | Karluk Lake, Alaska, United States | UTC−09:00 | Mar–Nov |
| KKM | VTBL | Khok Kathiam Air Force Base | Lopburi, Thailand | UTC+07:00 | |
| KKN | ENKR | Kirkenes Airport, Høybuktmoen | Kirkenes, Norway | UTC+01:00 | Mar–Oct |
| KKO | NZKO | Kaikohe Aerodrome | Kaikohe, New Zealand | UTC+12:00 | Sep–Apr |
| KKP | YKLB | Koolburra Airport | Koolburra, Queensland, Australia | UTC+10:00 | |
| KKQ | USDP | Krasnoselkup Airport[1] | Krasnoselkup, Yamalo-Nenets Autonomous Okrug, Russia | UTC+05:00 | |
| KKR | NTGK | Kaukura Airport | Kaukura Atoll, Tuamotus, French Polynesia | UTC−10:00 | |
| KKS | OIFK | Kashan Airport | Kashan, Isfahan, Iran | UTC+03:30 | |
| KKT | | Kentland Municipal Airport (FAA: 50I) | Kentland, Indiana, United States | UTC−06:00 | Mar–Nov |
| KKU | | Ekuk Airport | Ekuk, Alaska, United States | UTC−09:00 | Mar–Nov |
| KKW | FZCA | Kikwit Airport | Kikwit, Democratic Republic of the Congo | UTC+01:00 | |
| KKX | RJKI | Kikai Airport (Kikaiga Shima Airport) | Kikai, Satsunan Islands, Japan | UTC+09:00 | |
| KKY | EIKK | Kilkenny Airport | Kilkenny, Ireland | UTC±00:00 | Mar–Oct |
| KKZ | VDKK | Koh Kong Airport | Koh Kong, Cambodia | UTC+07:00 | |
| -KL- |
| KLB | FLKL | Kalabo Airport | Kalabo, Zambia | UTC+02:00 | |
| KLC | GOOK | Kaolack Airport | Kaolack, Senegal | UTC±00:00 | |
| KLD | UUEM | Migalovo Air Base | Tver, Tver Oblast, Russia | UTC+03:00 | |
| KLE | FKKH | Kaélé Airport | Kaélé, Cameroon | UTC+01:00 | |
| KLF | UUBC | Grabtsevo Airport | Kaluga, Kaluga Oblast, Russia | UTC+03:00 | |
| KLG | PALG | Kalskag Airport | Kalskag, Alaska, United States | UTC−09:00 | Mar–Nov |
| KLH | VAKP | Kolhapur Airport | Kolhapur, Maharashtra, India | UTC+05:30 | |
| KLI | FZFP | Kotakoli Air Base | Kotakoli, Democratic Republic of the Congo | UTC+01:00 | |
| KLK | HKFG | Kalokol Airport (Fergusons Gulf Airport) | Kalokol, Kenya | UTC+03:00 | |
| KLL | | Levelock Airport (FAA: 9Z8) | Levelock, Alaska, United States | UTC−09:00 | Mar–Nov |
| KLM | OINE | Kalaleh Airport[1] | Kalaleh, Iran | UTC+03:30 | Mar–Sep |
| KLN | PALB | Larsen Bay Airport (FAA: 2A3) | Larsen Bay, Alaska, United States | UTC−09:00 | Mar–Nov |
| KLO | RPVK | Kalibo International Airport | Kalibo, Philippines | UTC+08:00 | |
| KLQ | WIPV | Keluang Airport | Keluang, Indonesia | UTC+07:00 | |
| KLR | ESMQ | Kalmar Airport | Kalmar, Sweden | UTC+01:00 | Mar–Oct |
| KLS | KKLS | Southwest Washington Regional Airport | Kelso, Washington, United States | UTC−08:00 | Mar–Nov |
| KLU | LOWK | Klagenfurt Airport | Klagenfurt, Austria | UTC+01:00 | Mar–Oct |
| KLV | LKKV | Karlovy Vary Airport | Karlovy Vary, Czech Republic | UTC+01:00 | Mar–Oct |
| KLW | PAKW | Klawock Airport (FAA: AKW) | Klawock, Alaska, United States | UTC−09:00 | Mar–Nov |
| KLX | LGKL | Kalamata International Airport | Kalamata, Greece | UTC+02:00 | Mar–Oct |
| KLY | FZOD | Kamisuku Airport[2] | Kalima, Democratic Republic of the Congo | UTC+02:00 | |
| KLZ | FAKZ | Kleinzee Airport | Kleinzee, South Africa | UTC+02:00 | |
| -KM- |
| KMA | AYKM | Kerema Airport | Kerema, Papua New Guinea | UTC+10:00 | |
| KMB | | Koinambe Airport | Koinambe, Papua New Guinea | UTC+10:00 | |
| KMC | OEKK | King Khaled Military City Airport | King Khalid Military City, Saudi Arabia | UTC+03:00 | |
| KME | HRZA | Kamembe Airport | Cyangugu, Rwanda | UTC+02:00 | |
| KMF | AYKD | Kamina Airport | Kamina, Papua New Guinea | UTC+10:00 | |
| KMG | ZPPP | Kunming Changshui International Airport | Kunming, Yunnan, China | UTC+08:00 | |
| KMH | FAKU | Johan Pienaar Airport | Kuruman, South Africa | UTC+02:00 | |
| KMI | RJFM | Miyazaki Airport | Miyazaki, Kyushu, Japan | UTC+09:00 | |
| KMJ | RJFT | Kumamoto Airport | Mashiki, Kyushu, Japan | UTC+09:00 | |
| KMK | FCPA | Makabana Airport | Makabana, Republic of the Congo | UTC+01:00 | |
| KML | YKML | Kamileroi Airport | Kamileroi, Queensland, Australia | UTC+10:00 | |
| KMM | | Kimam Airport | Kimam, Indonesia | UTC+09:00 | |
| KMN | FZSB | Kamina Airport[1] (Kamina Ville Airport) | Kamina, Democratic Republic of the Congo | UTC+02:00 | |
| KMO | PAMB | Manokotak Airport (FAA: MBA) | Manokotak, Alaska, United States | UTC−09:00 | Mar–Nov |
| KMP | FYKT | Keetmanshoop Airport | Keetmanshoop, Namibia | UTC+01:00 | Sep–Apr |
| KMQ | RJNK | Komatsu Airport (Kanazawa Airport) | Komatsu, Honshu, Japan | UTC+09:00 | |
| KMR | AYRI | Karimui Airport | Karimui, Papua New Guinea | UTC+10:00 | |
| KMS | DGSI | Kumasi Airport | Kumasi, Ghana | UTC±00:00 | |
| KMT | | Kampot Airport | Kampot, Cambodia | UTC+07:00 | |
| KMU | HCMK | Kismayo Airport (Kisimayu Airport) | Kismayo, Somalia | UTC+03:00 | |
| KMV | VYKL | Kalaymyo Airport (Kalemyo Airport) | Kalaymyo, Myanmar | UTC+06:30 | |
| KMW | UUBA | Kostroma Airport | Kostroma, Kostroma Oblast, Russia | UTC+03:00 | |
| KMX | OEKM | King Khalid Air Base | Khamis Mushait, Saudi Arabia | UTC+03:00 | |
| KMY | | Moser Bay Seaplane Base | Moser Bay, Alaska, United States | UTC−09:00 | Mar–Nov |
| KMZ | FLKO | Kaoma Airport | Kaoma, Zambia | UTC+02:00 | |
| -KN- |
| KNA | SCVM | Viña del Mar Airport | Viña del Mar, Chile | UTC−04:00 | Aug–May |
| KNB | KKNB | Kanab Municipal Airport | Kanab, Utah, United States | UTC−07:00 | Mar–Nov |
| KND | FZOA | Kindu Airport | Kindu, Democratic Republic of the Congo | UTC+02:00 | |
| KNE | AYKJ | Kanainj Airport | Kanainj, Papua New Guinea | UTC+10:00 | |
| KNF | EGYM | RAF Marham | King's Lynn, England, United Kingdom | UTC±00:00 | Mar–Oct |
| KNG | WASK | Kaimana Airport | Kaimana, Indonesia | UTC+09:00 | |
| KNH | RCBS | Kinmen Airport (Shang Yi Airport) | Kinmen, Taiwan | UTC+08:00 | |
| KNI | YKNG | Katanning Airport | Katanning, Western Australia, Australia | UTC+08:00 | |
| KNJ | FCBK | Kindamba Airport | Kindamba, Republic of the Congo | UTC+01:00 | |
| KNK | PFKK | Kokhanok Airport (FAA: 9K2) | Kokhanok, Alaska, United States | UTC−09:00 | Mar–Nov |
| KNL | | Kelanoa Airport | Kelanoa, Papua New Guinea | UTC+10:00 | |
| KNM | FZTK | Kaniama Airport | Kaniama, Democratic Republic of the Congo | UTC+02:00 | |
| KNN | GUXN | Kankan Airport (Diankana Airport) | Kankan, Guinea | UTC±00:00 | |
| KNO | WIMM | Kualanamu International Airport | Medan, Indonesia | UTC+07:00 | |
| KNP | FNCP | Kapanda Airport | Capanda, Angola | UTC+01:00 | |
| KNQ | NWWD | Koné Airport | Koné, New Caledonia | UTC+11:00 | |
| KNR | OIBJ | Jam Airport | Kangan, Iran | UTC+03:30 | Mar–Sep |
| KNS | YKII | King Island Airport | King Island, Tasmania, Australia | UTC+10:00 | Oct–Apr |
| KNT | KTKX | Kennett Memorial Airport (FAA: TKX) | Kennett, Missouri, United States | UTC−06:00 | Mar–Nov |
| KNU | VIKA | Kanpur Airport (Chakeri Air Force Station) | Kanpur, Uttar Pradesh, India | UTC+05:30 | |
| KNW | PANW | New Stuyahok Airport | New Stuyahok, Alaska, United States | UTC−09:00 | Mar–Nov |
| KNX | YPKU | East Kimberley Regional Airport | Kununurra, Western Australia, Australia | UTC+08:00 | |
| KNZ | GAKA | Kéniéba Airport | Kéniéba, Mali | UTC±00:00 | |
| -KO- |
| KOA | PHKO | Kona International Airport at Keāhole | Kailua / Kona, Hawaii, United States | UTC−10:00 | |
| KOC | NWWK | Koumac Airport | Koumac, New Caledonia | UTC+11:00 | |
| KOD | | Kotabangun Airport | Kotabangun, Indonesia | UTC+08:00 | |
| KOE | WATT | El Tari Airport | Kupang, Indonesia | UTC+08:00 | |
| KOF | FAKP | Komatipoort Airport | Komatipoort, South Africa | UTC+02:00 | |
| KOG | VLKG | Khong Island Airport | Khong, Laos | UTC+07:00 | |
| KOH | YKLA | Koolatah Airport | Koolatah, Queensland, Australia | UTC+10:00 | |
| KOI | EGPA | Kirkwall Airport | Kirkwall, Scotland, United Kingdom | UTC±00:00 | Mar–Oct |
| KOJ | RJFK | Kagoshima Airport | Kagoshima, Kyushu, Japan | UTC+09:00 | |
| KOK | EFKK | Kokkola-Pietarsaari Airport | Kokkola / Jakobstad, Finland | UTC+02:00 | Mar–Oct |
| KOL | | Koumala Airport | Koumala, Central African Republic | UTC+01:00 | |
| KOM | | Komo-Manda Airport | Komo-Manda, Papua New Guinea | UTC+10:00 | |
| KON | | Kontum Airport | Kon Tum, Vietnam | UTC+07:00 | |
| KOO | FZRQ | Kongolo Airport | Kongolo, Democratic Republic of the Congo | UTC+02:00 | |
| KOP | VTUW | Nakhon Phanom Airport | Nakhon Phanom, Thailand | UTC+07:00 | |
| KOQ | EDCK | Köthen Airport | Köthen, Saxony-Anhalt, Germany | UTC+01:00 | Mar–Oct |
| KOR | AYRO | Kakoro Airport | Kakoro, Papua New Guinea | UTC+10:00 | |
| KOS | VDSV | Sihanoukville International Airport (Kaong Kang Airport) | Sihanoukville, Cambodia | UTC+07:00 | |
| KOT | PFKO | Kotlik Airport (FAA: 2A9) | Kotlik, Alaska, United States | UTC−09:00 | Mar–Nov |
| KOU | FOGK | Koulamoutou Airport | Koulamoutou, Gabon | UTC+01:00 | |
| KOV | UACK | Kokshetau Airport | Kokshetau, Kazakhstan | UTC+06:00 | |
| KOW | ZSGZ | Ganzhou Huangjin Airport | Ganzhou, Jiangxi, China | UTC+08:00 | |
| KOX | WABN | Kokonao Airport | Kokonao, Indonesia | UTC+09:00 | |
| KOY | | Olga Bay Seaplane Base | Olga Bay, Alaska, United States | UTC−09:00 | Mar–Nov |
| KOZ | | Ouzinkie Airport (FAA: 4K5) | Ouzinkie, Alaska, United States | UTC−09:00 | Mar–Nov |
| -KP- |
| KPA | AYKG | Kopiago Airport | Kopiago, Papua New Guinea | UTC+10:00 | |
| KPB | | Point Baker Seaplane Base | Point Baker, Alaska, United States | UTC−09:00 | Mar–Nov |
| KPC | PAPC | Port Clarence Coast Guard Station | Port Clarence, Alaska, United States | UTC−09:00 | Mar–Nov |
| KPE | AYYP | Yapsiei Airport | Yapsiei, Papua New Guinea | UTC+10:00 | |
| KPF | AYDL | Kondubol Airport | Kondubol, Papua New Guinea | UTC+10:00 | |
| KPG | | Kurupung Airport | Kurupung, Guyana | UTC−04:00 | |
| KPI | WBGP | Kapit Airport | Kapit, Sarawak, Malaysia | UTC+08:00 | |
| KPL | | Kapal Airport | Kapal, Papua New Guinea | UTC+10:00 | |
| KPM | AYAQ | Kompiam Airport | Kompiam, Papua New Guinea | UTC+10:00 | |
| KPN | PAKI | Kipnuk Airport (FAA: IIK) | Kipnuk, Alaska, United States | UTC−09:00 | Mar–Nov |
| KPO | RKTH | Pohang Airport | Pohang, South Korea | UTC+09:00 | |
| KPP | YKPR | Kalpowar Airport | Kalpowar, Queensland, Australia | UTC+10:00 | |
| KPR | | Port Williams Seaplane Base | Port Williams, Alaska, United States | UTC−09:00 | Mar–Nov |
| KPS | YKMP | Kempsey Airport | Kempsey, New South Wales, Australia | UTC+10:00 | Oct–Apr |
| KPT | | Jackpot Airport (Hayden Field) (FAA: 06U) | Jackpot, Nevada, United States | UTC−07:00 | Mar–Nov |
| KPV | PAPE | Perryville Airport (FAA: PEV) | Perryville, Alaska, United States | UTC−09:00 | Mar–Nov |
| KPW | UHMK | Keperveyem Airport[1] | Keperveyem, Chukotka, Russia | UTC+12:00 | |
| KPY | | Port Bailey Seaplane Base | Port Bailey, Alaska, United States | UTC−09:00 | Mar–Nov |
| -KQ- |
| KQA | PAUT | Akutan Airport | Akutan, Alaska, United States | UTC−09:00 | Mar–Nov |
| KQH | VIKG | Ajmer Kishangarh Airport | Kishangarh, Rajasthan, India | UTC+05:30 | |
| KQL | AYOL | Kol Airport | Kol, Papua New Guinea | UTC+10:00 | |
| KQR | YKAR | Karara Airport[1] | Karara, Western Australia, Australia | UTC+08:00 | |
| KQT | UTDT | Bokhtar International Airport[1] | Bokhtar, Tajikistan | UTC+05:00 | |
| -KR- |
| KRA | YKER | Kerang Airport | Kerang, Victoria, Australia | UTC+10:00 | Oct–Apr |
| KRB | YKMB | Karumba Airport | Karumba, Queensland, Australia | UTC+10:00 | |
| KRC | WIPH | Depati Parbo Airport | Kerinci, Indonesia | UTC+07:00 | |
| KRD | | Kurundi Airport | Kurundi Station, Northern Territory, Australia | UTC+09:30 | |
| KRE | HBBO | Kirundo Airport | Kirundo, Burundi | UTC+02:00 | |
| KRF | ESNK | Höga Kusten Airport (Kramfors-Sollefteå Airport) | Kramfors / Sollefteå, Sweden | UTC+01:00 | Mar–Oct |
| KRG | SYKS | Karasabai Airport | Karasabai, Guyana | UTC−04:00 | |
| KRI | AYKK | Kikori Airport | Kikori, Papua New Guinea | UTC+10:00 | |
| KRJ | AYQA | Karawari Airport | Karawari, Papua New Guinea | UTC+10:00 | |
| KRK | EPKK | John Paul II International Airport Kraków–Balice | Kraków, Poland | UTC+01:00 | Mar–Oct |
| KRL | ZWKL | Korla Airport | Korla, Xinjiang, China | UTC+06:00 | |
| KRM | SYKR | Karanambo Airport | Karanambo, Guyana | UTC−04:00 | |
| KRN | ESNQ | Kiruna Airport | Kiruna, Sweden | UTC+01:00 | Mar–Oct |
| KRO | USUU | Kurgan Airport | Kurgan, Kurgan Oblast, Russia | UTC+05:00 | |
| KRP | EKKA | Karup Airport | Karup, Denmark | UTC+01:00 | Mar–Oct |
| KRQ | UKCK | Kramatorsk Airport | Kramatorsk, Ukraine | UTC+03:00 | |
| KRR | URKK | Krasnodar International Airport (Pashkovsky Airport) | Krasnodar, Krasnodar Krai, Russia | UTC+03:00 | |
| KRS | ENCN | Kristiansand Airport, Kjevik | Kristiansand, Norway | UTC+01:00 | Mar–Oct |
| KRT | HSSK | Khartoum International Airport | Khartoum, Sudan | UTC+03:00 | |
| KRU | AYEA | Kerau Airport | Kerau, Papua New Guinea | UTC+10:00 | |
| KRV | | Kimwarer Airport (Kerio Valley Airport) | Kimwarer, Kenya | UTC+03:00 | |
| KRW | UTAK | Turkmenbashi International Airport | Türkmenbaşy, Turkmenistan | UTC+05:00 | |
| KRX | AYKR | Karkar Airport | Karkar Island, Papua New Guinea | UTC+10:00 | |
| KRY | ZWKM | Karamay Airport | Karamay, Xinjiang, China | UTC+06:00 | |
| KRZ | FZBT | Basango Mboliasa Airport | Kiri, Democratic Republic of the Congo | UTC+01:00 | |
| -KS- |
| KSA | PTSA | Kosrae International Airport (FAA: TTK) | Kosrae, Federated States of Micronesia | UTC+11:00 | |
| KSB | AYNM | Kasanombe Airport | Kasanombe, Papua New Guinea | UTC+10:00 | |
| KSC | LZKZ | Košice International Airport | Košice, Slovakia | UTC+01:00 | Mar–Oct |
| KSD | ESOK | Karlstad Airport | Karlstad, Sweden | UTC+01:00 | Mar–Oct |
| KSE | HUKS | Kasese Airport | Kasese, Uganda | UTC+03:00 | |
| KSF | EDVK | Kassel Airport | Kassel, Hesse, Germany | UTC+01:00 | Mar–Oct |
| KSG | | Kisengam Airport | Kisengam, Papua New Guinea | UTC+10:00 | |
| KSH | OICC | Shahid Ashrafi Esfahani Airport (Kermanshah Airport) | Kermanshah, Iran | UTC+03:30 | Mar–Sep |
| KSI | GUKU | Kissidougou Airport | Kissidougou, Guinea | UTC±00:00 | |
| KSJ | LGKS | Kasos Island Public Airport | Kasos Island, Greece | UTC+02:00 | Mar–Oct |
| KSK | ESKK | Karlskoga Airport | Karlskoga, Sweden | UTC+01:00 | Mar–Oct |
| KSL | HSKA | Kassala Airport | Kassala, Sudan | UTC+03:00 | |
| KSM | PASM | St. Mary's Airport | St. Mary's, Alaska, United States | UTC−09:00 | Mar–Nov |
| KSN | UAUU | Kostanay Airport | Kostanay, Kazakhstan | UTC+06:00 | |
| KSO | LGKA | Kastoria National Airport (Aristotelis Airport) | Kastoria, Greece | UTC+02:00 | Mar–Oct |
| KSP | AYOP | Kosipe Airport | Kosipe, Papua New Guinea | UTC+10:00 | |
| KSQ | UTSL | Karshi Airport | Karshi, Uzbekistan | UTC+05:00 | |
| KSR | WAWH | H. Aroeppala Airport | Selayar Islands, Sulawesi, Indonesia | UTC+09:00 | |
| KSS | GASK | Sikasso Airport | Sikasso, Mali | UTC±00:00 | |
| KST | HSKI | Rabak Airport | Kosti, Sudan | UTC+03:00 | |
| KSU | ENKB | Kristiansund Airport, Kvernberget | Kristiansund, Norway | UTC+01:00 | Mar–Oct |
| KSV | YSPV | Springvale Airport | Springvale, Queensland, Australia | UTC+10:00 | |
| KSW | LLKS | Kiryat Shmona Airport | Kiryat Shmona, Israel | UTC+02:00 | Mar–Oct |
| KSX | AYYR | Yasuru Airport | Yasuru, Papua New Guinea | UTC+10:00 | |
| KSY | LTCF | Kars Harakani Airport | Kars, Turkey | UTC+03:00 | |
| KSZ | ULKK | Kotlas Airport | Kotlas, Arkhangelsk Oblast, Russia | UTC+03:00 | |
| -KT- |
| KTA | YPKA | Karratha Airport | Karratha, Western Australia, Australia | UTC+08:00 | |
| KTB | | Thorne Bay Seaplane Base | Thorne Bay, Alaska, United States | UTC−09:00 | Mar–Nov |
| KTC | | Katiola Airport | Katiola, Ivory Coast | UTC±00:00 | |
| KTD | RORK | Kitadaito Airport | Kitadaito, Daitō Islands, Japan | UTC+09:00 | |
| KTE | WMKE | Kerteh Airport | Kerteh, Terengganu, Malaysia | UTC+08:00 | |
| KTF | NZTK | Takaka Aerodrome | Takaka, New Zealand | UTC+12:00 | Sep–Apr |
| KTG | WIOK | Rahadi Osman Airport (Ketapang Airport) | Ketapang, Indonesia | UTC+07:00 | |
| KTH | | Tikchik Lodge Seaplane Base (FAA: AK56) | Tikchik, Alaska, United States | UTC−09:00 | Mar–Nov |
| KTI | VDTI | Techo International Airport | Kandal, Cambodia | UTC+07:00 | |
| KTJ | | Kichwa Tembo Airport[1] | Kichwa Tembo, Kenya | UTC+03:00 | |
| KTK | | Kunua Airport | Kunua, Papua New Guinea | UTC+11:00 | |
| KTL | HKKT | Kitale Airport | Kitale, Kenya | UTC+03:00 | |
| KTM | VNKT | Tribhuvan International Airport | Kathmandu, Nepal | UTC+05:45 | |
| KTN | PAKT | Ketchikan International Airport | Ketchikan, Alaska, United States | UTC−09:00 | Mar–Nov |
| KTO | SYKT | Kato Airport | Kato, Guyana | UTC−04:00 | |
| KTP | MKTP | Tinson Pen Aerodrome | Kingston, Jamaica | UTC−05:00 | |
| KTQ | EFIT | Kitee Airfield | Kitee, Finland | UTC+02:00 | Mar–Oct |
| KTR | YPTN | RAAF Base Tindal | Katherine, Northern Territory, Australia | UTC+09:30 | |
| KTS | PFKT | Brevig Mission Airport | Brevig Mission, Alaska, United States | UTC−09:00 | Mar–Nov |
| KTT | EFKT | Kittilä Airport | Kittilä, Finland | UTC+02:00 | Mar–Oct |
| KTU | VIKO | Kota Airport | Kota, Rajasthan, India | UTC+05:30 | |
| KTV | SVKM | Kamarata Airport | Kamarata, Venezuela | UTC−04:00 | |
| KTW | EPKT | Katowice International Airport | Katowice, Poland | UTC+01:00 | Mar–Oct |
| KTX | GAKO | Koutiala Airport | Koutiala, Mali | UTC±00:00 | |
| KTY | VCCN | Katukurunda Airport[1] | Kalutara, Sri Lanka | UTC+05:30 | |
| -KU- |
| KUA | WMKD | Sultan Haji Ahmad Shah Airport (RMAF Kuantan) | Kuantan, Pahang, Malaysia | UTC+08:00 | |
| KUC | NGKT | Kuria Airport | Kuria, Kiribati | UTC+12:00 | |
| KUB | WBAK | Anduki Airfield | Seria, Belait District, Brunei | UTC+8:00 | |
| KUD | WBKT | Kudat Airport | Kudat, Sabah, Malaysia | UTC+08:00 | |
| KUE | AGKU | Kukundu Airport | Kolombangara, Western Province, Solomon Islands | UTC+11:00 | |
| KUF | UWWW | Kurumoch International Airport | Samara, Samara Oblast, Russia | UTC+04:00 | |
| KUG | YKUB | Kubin Airport | Moa Island, Queensland, Australia | UTC+10:00 | |
| KUH | RJCK | Kushiro Airport | Kushiro, Hokkaido, Japan | UTC+09:00 | |
| KUK | PFKA | Kasigluk Airport (FAA: Z09) | Kasigluk, Alaska, United States | UTC−09:00 | Mar–Nov |
| KUL | WMKK | Kuala Lumpur International Airport | Kuala Lumpur,1 Malaysia | UTC+08:00 | |
| KUM | RJFC | Yakushima Airport | Yakushima, Ōsumi Islands, Japan | UTC+09:00 | |
| KUN | EYKA | Kaunas International Airport | Kaunas, Lithuania | UTC+02:00 | Mar–Oct |
| KUO | EFKU | Kuopio Airport | Kuopio, Finland | UTC+02:00 | Mar–Oct |
| KUP | | Kupiano Airport | Kupiano, Papua New Guinea | UTC+10:00 | |
| KUQ | AYKU | Kuri Airport | Kuri, Papua New Guinea | UTC+10:00 | |
| KUR | OARZ | Razer Airport | Koran va Monjan (Kiran wa Munjan), Afghanistan | UTC+04:30 | |
| KUS | BGKK | Kulusuk Airport | Kulusuk, Greenland | UTC−03:00 | Mar–Oct |
| KUT | UGKO | David the Builder Kutaisi International Airport | Kutaisi, Georgia | UTC+04:00 | |
| KUU | VIBR | Bhuntar Airport (Kullu Manali Airport) | Kullu, Himachal Pradesh, India | UTC+05:30 | |
| KUV | RKJK | Gunsan Airport | Gunsan, South Korea | UTC+09:00 | |
| KUX | | Kuyol Airport[1] | Kuyol, Papua New Guinea | UTC+11:00 | |
| KUY | | Kamusi Airport[1] | Kamusi, Papua New Guinea | UTC+11:00 | |
| -KV- |
| KVA | LGKV | Kavala International Airport (Alexander the Great Airport) | Kavala, Greece | UTC+02:00 | Mar–Oct |
| KVB | ESGR | Skövde Airport | Skövde, Sweden | UTC+01:00 | Mar–Oct |
| KVC | PAVC | King Cove Airport | King Cove, Alaska, United States | UTC−09:00 | Mar–Nov |
| KVE | | Kitava Island Airport | Kitava Island, Papua New Guinea | UTC+10:00 | |
| KVG | AYKV | Kavieng Airport | Kavieng, Papua New Guinea | UTC+10:00 | |
| KVK | ULMK | Kirovsk-Apatity Airport (Khibiny Airport) | Kirovsk / Apatity, Murmansk Oblast, Russia | UTC+03:00 | |
| KVL | PAVL | Kivalina Airport | Kivalina, Alaska, United States | UTC−09:00 | Mar–Nov |
| KVM | UHMO | Markovo Airport | Markovo, Chukotka, Russia | UTC+12:00 | |
| KVO | LYKV | Morava Airport | Lađevci, Serbia | | |
| KVR | | Kavalerovo Airport[1] | Kavalerovo, Primorsky Krai, Russia | UTC+10:00 | |
| KVU | | Korolevu Seaplane Base | Korolevu, Fiji | UTC+12:00 | Nov–Jan |
| KVX | USKK | Pobedilovo Airport | Kirov, Kirov Oblast, Russia | UTC+03:00 | |
| -KW- |
| KWA | PKWA | Bucholz Army Airfield | Kwajalein, Marshall Islands | UTC+12:00 | |
| KWB | | Dewadaru Airport | Karimun Java, Indonesia | UTC+07:00 | |
| KWD | | Kavadja Airport[1] | Kavadja, Central African Republic | UTC+01:00 | |
| KWE | ZUGY | Guiyang Longdongbao International Airport | Guiyang, Guizhou, China | UTC+08:00 | |
| KWF | | Waterfall Seaplane Base | Waterfall, Alaska, United States | UTC−09:00 | Mar–Nov |
| KWG | UKDR | Kryvyi Rih International Airport | Kryvyi Rih (Krivoi Rog), Ukraine | UTC+02:00 | Mar–Oct |
| KWH | OAHN | Khwahan Airport | Khwahan, Afghanistan | UTC+04:30 | |
| KWI | OKBK | Kuwait International Airport | Kuwait City, Kuwait | UTC+03:00 | |
| KWJ | RKJJ | Gwangju Airport | Gwangju (Kwangju), South Korea | UTC+09:00 | |
| KWK | PAGG | Kwigillingok Airport (FAA: GGV) | Kwigillingok, Alaska, United States | UTC−09:00 | Mar–Nov |
| KWL | ZGKL | Guilin Liangjiang International Airport | Guilin, Guangxi, China | UTC+08:00 | |
| KWM | YKOW | Kowanyama Airport | Kowanyama, Queensland, Australia | UTC+10:00 | |
| KWN | PAQH | Quinhagak Airport (FAA: AQH) | Quinhagak, Alaska, United States | UTC−09:00 | Mar–Nov |
| KWO | AYKW | Kawito Airport | Kawito, Papua New Guinea | UTC+10:00 | |
| KWP | | West Point Village Seaplane Base | West Point, Alaska, United States | UTC−09:00 | Mar–Nov |
| KWR | | Kwai Harbour Airport | Kwai Harbour, Solomon Islands | UTC+11:00 | |
| KWS | AGKW[3] | Kwailabesi Airport | Kwailabesi, Solomon Islands | UTC+11:00 | |
| KWT | PFKW | Kwethluk Airport | Kwethluk, Alaska, United States | UTC−09:00 | Mar–Nov |
| KWV | | Kurwina Airport | Kurwina, Papua New Guinea | UTC+11:00 | |
| KWX | | Kiwai Island Airport | Kiwai Island, Papua New Guinea | UTC+10:00 | |
| KWY | | Kiwayu Airport | Kiwayu, Kenya | UTC+03:00 | |
| KWZ | FZQM | Kolwezi Airport | Kolwezi, Democratic Republic of the Congo | UTC+02:00 | |
| -KX- |
| KXA | | Kasaan Seaplane Base | Kasaan, Alaska, United States | UTC−09:00 | Mar–Nov |
| KXB | WAWP | Sangia Nibandera Airport[1] | Kolaka, Indonesia | |
| KXD | USHK | Kondinskoye Airport[1] | Kondinskoye, Khanty-Mansi Autonomous Okrug, Russia | UTC+05:00 | |
| KXE | FAKD | Klerksdorp Airport (P.C. Pelser Airport) | Klerksdorp, South Africa | UTC+02:00 | |
| KXF | NFNO | Koro Airport | Koro Island, Fiji | UTC+12:00 | Nov–Jan |
| KXK | UHKK | Komsomolsk-on-Amur Airport | Komsomolsk-on-Amur, Khabarovsk Krai, Russia | UTC+10:00 | |
| KXR | | Karoola Airport | Karoola, Papua New Guinea | UTC+10:00 | |
| KXU | NTKT | Katiu Airport[1] | Katiu, Tuamotus, French Polynesia | UTC−10:00 | |
| -KY- |
| KYA | LTAN | Konya Airport | Konya, Turkey | UTC+03:00 | |
| KYD | RCLY | Lanyu Airport | Orchid Island, Taiwan | UTC+08:00 | |
| KYE | OLKA | Rene Mouawad Air Base (Kleyate Airport) | Tripoli, Lebanon | UTC+02:00 | Mar–Oct |
| KYF | YYLR | Yeelirrie Airport | Yeelirrie, Western Australia, Australia | UTC+08:00 | |
| KYI | YYTA | Yalata Airport | Yalata Mission, South Australia, Australia | UTC+09:30 | Oct–Apr |
| KYK | PAKY | Karluk Airport | Karluk, Alaska, United States | UTC−09:00 | Mar–Nov |
| KYO | | Tampa North Aero Park[1] (FAA: X39) | Tampa, Florida, United States | UTC−05:00 | Mar–Nov |
| KYP | VYKP | Kyaukpyu Airport | Kyaukpyu, Myanmar | UTC+06:30 | |
| KYS | GAKY | Kayes Airport (Dag-Dag Airport) | Kayes, Mali | UTC±00:00 | |
| KYT | VYKU | Kyauktu Airport | Kyaukhtu, Myanmar | UTC+06:30 | |
| KYU | PFKU | Koyukuk Airport | Koyukuk, Alaska, United States | UTC−09:00 | Mar–Nov |
| KYX | AYYE | Yalumet Airport | Yalumet, Papua New Guinea | UTC+10:00 | |
| KYZ | UNKY | Kyzyl Airport | Kyzyl, Tuva, Russia | UTC+07:00 | |
| -KZ- |
| KZB | | Zachar Bay Seaplane Base | Zachar Bay, Alaska, United States | UTC−09:00 | Mar–Nov |
| KZC | VDKH | Kampong Chhnang Airport | Kampong Chhnang, Cambodia | UTC+07:00 | |
| KZD | | Krakor Airport | Krakor, Cambodia | UTC+07:00 | |
| KZF | AYKT | Kaintiba Airport | Kaintiba, Papua New Guinea | UTC+10:00 | |
| KZG | ETIN | Kitzingen Airport | Kitzingen, Bavaria, Germany | UTC+01:00 | Mar–Oct |
| KZI | LGKZ | Kozani National Airport (Filippos Airport) | Kozani, Greece | UTC+02:00 | Mar–Oct |
| KZN | UWKD | Kazan International Airport | Kazan, Tatarstan, Russia | UTC+03:00 | |
| KZO | UAOO | Kyzylorda Airport | Kyzylorda, Kazakhstan | UTC+06:00 | |
| KZR | LTBZ | Zafer Airport | Kütahya, Turkey | UTC+03:00 | |
| KZS | LGKJ | Kastellorizo Island Public Airport | Kastellorizo, Greece | UTC+02:00 | Mar–Oct |