| IATA | ICAO | Airport name | Location served | Time | DST[a] |
| -GA- |
| GAA | | Guamal Airport | Guamal, Colombia | UTC−05:00 | |
| GAB | KGAB | Gabbs Airport | Gabbs, Nevada, United States | UTC−08:00 | Mar-Nov |
| GAC | MHGS[4] | Gracias Airport | Gracias, Honduras | UTC−06:00 | |
| GAD | KGAD | Northeast Alabama Regional Airport | Gadsden, Alabama, United States | UTC−06:00 | Mar-Nov |
| GAE | DTTG | Gabès – Matmata International Airport | Gabès, Tunisia | UTC+01:00 | |
| GAF | DTTF | Gafsa – Ksar International Airport | Gafsa, Tunisia | UTC+01:00 | |
| GAG | KGAG | Gage Airport | Gage, Oklahoma, United States | UTC−06:00 | Mar-Nov |
| GAH | YGAY | Gayndah Airport | Gayndah, Queensland, Australia | UTC+10:00 | |
| GAI | KGAI | Montgomery County Airpark | Gaithersburg, Maryland, United States | UTC−05:00 | Mar-Nov |
| GAJ | RJSC | Yamagata Airport (Junmachi Airport) | Yamagata, Honshu, Japan | UTC+09:00 | |
| GAL | PAGA | Edward G. Pitka Sr. Airport | Galena, Alaska, United States | UTC−09:00 | Mar-Nov |
| GAM | PAGM | Gambell Airport | Gambell, Alaska, United States | UTC−09:00 | Mar-Nov |
| GAN | VRMG | Gan International Airport | Gan Island, Addu Atoll, Maldives | UTC+05:00 | |
| GAO | MUGT | Mariana Grajales Airport | Guantánamo, Cuba | UTC−05:00 | Mar-Nov |
| GAP | AYGP | Gusap Airport | Gusap, Papua New Guinea | UTC+10:00 | |
| GAQ | GAGO | Gao International Airport (Korogoussou Airport) | Gao, Mali | UTC±00:00 | |
| GAR | AYGI | Garaina Airport | Garaina, Papua New Guinea | UTC+10:00 | |
| GAS | HKGA | Garissa Airport | Garissa, Kenya | UTC+03:00 | |
| GAT | LFNA | Gap–Tallard Airport | Gap, Provence-Alpes-Côte d'Azur, France | UTC+01:00 | Mar-Oct |
| GAU | VEGT | Lokpriya Gopinath Bordoloi International Airport | Guwahati, Assam, India | UTC+05:30 | |
| GAV | | Gag Island Airport | Gag Island, Indonesia | UTC+09:00 | |
| GAW | VYGG | Gangaw Airport | Gangaw, Myanmar | UTC+06:30 | |
| GAX | | Gamba Airport | Gamba, Gabon | UTC+01:00 | |
| GAY | VEGY | Gaya Airport (Bodhgaya Airport) | Gaya, Bihar, India | UTC+05:30 | |
| GAZ | | Guasopa Airport | Guasopa, Papua New Guinea | UTC+10:00 | |
| -GB- |
| GBA | EGBP | Cotswold Airport[1] | Kemble, England, United Kingdom | UTC±00:00 | Mar-Oct |
| GBB | UBBQ | Qabala International Airport | Qabala, Azerbaijan | UTC+04:00 | |
| GBC | AYGS | Gasuke Airport | Gasuke, Papua New Guinea | UTC+10:00 | |
| GBD | KGBD | Great Bend Municipal Airport | Great Bend, Kansas, United States | UTC−06:00 | Mar-Nov |
| GBE | FBSK | Sir Seretse Khama International Airport | Gaborone, Botswana | UTC+02:00 | |
| GBF | AYNE | Negarbo Airport | Negarbo, Papua New Guinea | UTC+10:00 | |
| GBG | KGBG | Galesburg Municipal Airport | Galesburg, Illinois, United States | UTC−06:00 | Mar-Nov |
| GBH | PAGB | Galbraith Lake Airport | Galbraith Lake, Alaska, United States | UTC−09:00 | Mar-Nov |
| GBI | | Kalaburagi Airport | Gulbarga, Karnataka, India | UTC+05:30 | |
| GBJ | TFFM | Marie-Galante Airport (Les Bases) | Grand-Bourg, Marie-Galante Island, Guadeloupe | UTC−04:00 | |
| GBK | GFGK | Gbangbatok Airport | Gbangbatok, Sierra Leone | UTC±00:00 | |
| GBL | YGBI | South Goulburn Island Airport | Goulburn Islands, Northern Territory, Australia | UTC+09:30 | |
| GBM | | Garbaharey Airport | Garbaharey, Somalia | UTC+03:00 | |
| GBP | YGAM | Gamboola Airport | Gamboola, Queensland, Australia | UTC+10:00 | |
| GBR | KGBR | Walter J. Koladza Airport | Great Barrington, Massachusetts, United States | UTC−05:00 | Mar-Nov |
| GBT | OING | Gorgan Airport[1] | Gorgan, Iran | UTC+03:30 | Mar-Sep |
| GBU | HSKG | Khashm el Girba Airport | Khashm el Girba, Sudan | UTC+03:00 | |
| GBV | YGIB | Gibb River Airport | Gibb River, Western Australia, Australia | UTC+08:00 | |
| GBW | YGIA | Ginbata Airport[1] | Ginbata, Western Australia, Australia | UTC+08:00 | |
| GBZ | NZGB | Great Barrier Aerodrome | Great Barrier Island, New Zealand | UTC+12:00 | Sep-Apr |
| -GC- |
| GCA | | Guacamayas Airport | Guacamayas, Colombia | UTC−05:00 | |
| GCC | KGCC | Gillette–Campbell County Airport | Gillette, Wyoming, United States | UTC−07:00 | Mar-Nov |
| GCD | | Grand Coulee Dam Airport[1] (FAA: 3W7) | Electric City, Washington, United States | UTC−08:00 | Mar-Nov |
| GCH | OIAH | Gachsaran Airport[1] | Gachsaran, Iran | UTC+03:30 | Mar-Sep |
| GCI | EGJB | Guernsey Airport | The Forest, Guernsey, Channel Islands | UTC±00:00 | Mar-Oct |
| GCJ | FAGC | Grand Central Airport | Johannesburg, South Africa | UTC+02:00 | |
| GCK | KGCK | Garden City Regional Airport | Garden City, Kansas, United States | UTC−06:00 | Mar-Nov |
| GCM | MWCR | Owen Roberts International Airport | Grand Cayman, British Overseas Territory of Cayman Islands | UTC−05:00 | |
| GCN | KGCN | Grand Canyon National Park Airport | Tusayan, Arizona, United States | UTC−07:00 | |
| GCT | | Grand Canyon Bar 10 Airport | Whitmore, Arizona, United States | UTC−07:00 | |
| GCW | | Grand Canyon West Airport[1] (FAA: 1G4) | Peach Springs, Arizona, United States | UTC−07:00 | |
| GCY | KGCY | Greeneville–Greene County Municipal Airport | Greeneville, Tennessee, United States | UTC−05:00 | Mar-Nov |
| -GD- |
| GDA | | Gounda Airport | Gounda, Central African Republic | UTC+01:00 | |
| GDC | KGYH | Donaldson Center Airport (FAA: GYH) | Greenville, South Carolina, United States | UTC−05:00 | Mar-Nov |
| GDD | YGDN | Gordon Downs Airport | Gordon Downs, Western Australia, Australia | UTC+08:00 | |
| GDE | HAGO | Gode Airport | Gode, Ethiopia | UTC+03:00 | |
| GDG | UHBI | Magdagachi Airport | Magdagachi, Amur Oblast, Russia | UTC+09:00 | |
| GDH | | Golden Horn Lodge Seaplane Base (FAA: 3Z8) | Golden Horn Lodge, Alaska, United States | UTC−09:00 | Mar-Nov |
| GDI | | Gordil Airport | Gordil, Central African Republic | UTC+01:00 | |
| GDJ | FZWC | Gandajika Airport | Gandajika, Democratic Republic of the Congo | UTC+02:00 | |
| GDL | MMGL | Guadalajara International Airport (Miguel Hidalgo y Costilla Int'l) | Guadalajara, Jalisco, Mexico | UTC−06:00 | Apr-Oct |
| GDM | KGDM | Gardner Municipal Airport | Gardner, Massachusetts, United States | UTC−05:00 | Mar-Nov |
| GDN | EPGD | Gdańsk Lech Wałęsa Airport | Gdańsk, Poland | UTC+01:00 | Mar-Oct |
| GDO | SVGD | Guasdualito Airport (Vare Maria Airport) | Guasdualito, Venezuela | UTC−04:00 | |
| GDP | SNGD | Guadalupe Airport | Guadalupe, Piauí, Brazil | UTC−03:00 | |
| GDQ | HAGN | Gondar Airport (Atse Tewodros Airport) | Gondar, Ethiopia | UTC+03:00 | |
| GDT | MBGT | JAGS McCartney International Airport (Grand Turk Int'l) | Grand Turk Island, British Overseas Territory
of Turks and Caicos Islands | UTC−04:00 | |
| GDV | KGDV | Dawson Community Airport | Glendive, Montana, United States | UTC−07:00 | Mar-Nov |
| GDW | KGDW | Gladwin Zettel Memorial Airport | Gladwin, Michigan, United States | UTC−05:00 | Mar-Nov |
| GDX | UHMM | Sokol Airport | Magadan, Magadan Oblast, Russia | UTC+11:00 | |
| GDZ | URKG | Gelendzhik Airport | Gelendzhik, Krasnodar Krai, Russia | UTC+03:00 | |
| -GE- |
| GEA | NWWM | Nouméa Magenta Airport | Nouméa, New Caledonia | UTC+11:00 | |
| GEB | WAMJ | Gebe Airport | Gebe, Indonesia | UTC+09:00 | |
| GEC | | Geçitkale Air Base | Geçitkale, Northern Cyprus | UTC+03:00 | |
| GED | KGED | Delaware Coastal Airport | Georgetown, Delaware, United States | UTC−05:00 | Mar-Nov |
| GEE | YGTO | George Town Aerodrome | George Town, Tasmania, Australia | UTC+10:00 | Oct-Apr |
| GEF | AGEV | Geva Airport | Liangai, Vella Lavella, Solomon Islands | UTC+11:00 | |
| GEG | KGEG | Spokane International Airport | Spokane, Washington, United States | UTC−08:00 | Mar-Nov |
| GEL | SBNM | Sepé Tiaraju Airport | Santo Ângelo, Rio Grande do Sul, Brazil | UTC−03:00 | |
| GEM | FGMY | President Obiang Nguema International Airport[1] | Mengomeyén, Equatorial Guinea | UTC+01:00 | |
| GEO | SYCJ | Cheddi Jagan International Airport | Georgetown, Guyana | UTC−04:00 | |
| GER | MUNG | Rafael Cabrera Mustelier Airport | Nueva Gerona, Cuba | UTC−05:00 | Mar-Nov |
| GES | RPMR | General Santos International Airport (Tambler Airport) | General Santos, Philippines | UTC+08:00 | |
| GET | YGEL | Geraldton Airport | Geraldton, Western Australia, Australia | UTC+08:00 | |
| GEV | ESNG | Gällivare Airport | Gällivare, Sweden | UTC+01:00 | Mar-Oct |
| GEW | AYGC | Gewoia Airport | Gewoia, Papua New Guinea | UTC+10:00 | |
| GEX | YGLG | Geelong Airport | Geelong, Victoria, Australia | UTC+10:00 | Oct-Apr |
| GEY | KGEY | South Big Horn County Airport | Greybull, Wyoming, United States | UTC−07:00 | Mar-Nov |
| -GF- |
| GFD | KGFD | Pope Field | Greenfield, Indiana, United States | UTC−05:00 | Mar-Nov |
| GFE | | Grenfell Airport[1] | Grenfell, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| GFF | YGTH | Griffith Airport | Griffith, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| GFK | KGFK | Grand Forks International Airport | Grand Forks, North Dakota, United States | UTC−06:00 | Mar-Nov |
| GFL | KGFL | Floyd Bennett Memorial Airport | Glens Falls, New York, United States | UTC−05:00 | Mar-Nov |
| GFN | YGFN | Clarence Valley Regional Airport | Grafton, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| GFO | SYBT | Bartica Airport | Bartica, Guyana | UTC−04:00 | |
| GFR | LFRF | Granville–Mont-Saint-Michel Aerodrome | Granville, Lower Normandy, France | UTC+01:00 | Mar-Oct |
| GFY | FYGF | Grootfontein Air Base | Grootfontein, Namibia | UTC+01:00 | Sep-Apr |
| -GG- |
| GGB | SWHP | Água Boa Airport | Água Boa, Mato Grosso, Brazil | UTC−03:00 | |
| GGC | | Lumbala N'guimbo Airport | Lumbala N'guimbo, Angola | UTC+01:00 | |
| GGD | YGDS | Gregory Downs Airport | Gregory Downs, Queensland, Australia | UTC+10:00 | |
| GGE | KGGE | Georgetown County Airport | Georgetown, South Carolina, United States | UTC−05:00 | Mar-Nov |
| GGF | SNYA | Almeirim Airport | Almeirim, Pará, Brazil | UTC−03:00 | |
| GGG | KGGG | East Texas Regional Airport | Longview, Texas, United States | UTC−06:00 | Mar-Nov |
| GGH | SSCT | Gastão Mesquita Airport | Cianorte, Paraná, Brazil | UTC−03:00 | |
| GGJ | SSGY | Guaíra Airport | Guaíra, Paraná, Brazil | UTC−03:00 | |
| GGL | | Gilgal Airport[1] | Gilgal, Colombia | UTC−05:00 | |
| GGM | HKKG | Kakamega Airport[1] | Kakamega, Kenya | UTC+03:00 | |
| GGN | DIGA | Gagnoa Airport | Gagnoa, Ivory Coast | UTC±00:00 | |
| GGO | DIGL | Guiglo Airport | Guiglo, Ivory Coast | UTC±00:00 | |
| GGR | | Garowe International Airport | Garowe, Somalia | UTC+03:00 | |
| GGS | SAWR | Gobernador Gregores Airport | Gobernador Gregores, Santa Cruz, Argentina | UTC−03:00 | |
| GGT | MYEF | Exuma International Airport | Moss Town, Great Exuma Island, Bahamas | UTC−05:00 | Mar-Nov |
| GGW | KGGW | Glasgow Airport (Wokal Field) | Glasgow, Montana, United States | UTC−07:00 | Mar-Nov |
| -GH- |
| GHA | DAUG | Noumérat – Moufdi Zakaria Airport | Ghardaïa, Algeria | UTC+01:00 | |
| GHB | MYEM | Governor's Harbour Airport | Governor's Harbour, Eleuthera Island, Bahamas | UTC−05:00 | Mar-Nov |
| GHC | MYBG | Great Harbour Cay Airport | Great Harbour Cay, Berry Islands, Bahamas | UTC−05:00 | Mar-Nov |
| GHE | | Garachiné Airport | Garachiné, Panama | UTC−05:00 | |
| GHF | ETEU | Giebelstadt Airport | Giebelstadt, Bavaria, Germany | UTC+01:00 | Mar-Oct |
| GHK | | Gahcho Kue Aerodrome[1] (TC: CGK2) | Kennedy Lake, Northwest Territories, Canada | UTC−07:00 | Mar-Nov |
| GHM | KGHM | Centerville Municipal Airport | Centerville, Tennessee, United States | UTC−06:00 | Mar-Nov |
| GHN | ZUGH | Guanghan Airport | Guanghan, Sichuan, China | UTC+08:00 | |
| GHS | WALE | West Kutai Melalan Airport | Melak, East Kalimantan, Indonesia | UTC+09:00 | |
| GHT | HLGT | Ghat Airport | Ghat, Libya | UTC+02:00 | |
| GHU | SAAG | Gualeguaychú Airport | Gualeguaychú, Entre Ríos, Argentina | UTC−03:00 | |
| GHV | LRBV | Brașov-Ghimbav International Airport | Brașov, Romania | UTC+02:00 | Mar-Oct |
| -GI- |
| GIB | LXGB | Gibraltar International Airport (North Front Airport) | British Overseas Territory of Gibraltar | UTC+01:00 | Mar-Oct |
| GIC | YBOI | Boigu Island Airport | Boigu Island, Queensland, Australia | UTC+10:00 | |
| GID | HBBE | Gitega Airport | Gitega, Burundi | UTC+02:00 | |
| GIF | KGIF | Winter Haven's Gilbert Airport | Winter Haven, Florida, United States | UTC−05:00 | Mar-Nov |
| GIG | SBGL | Rio de Janeiro–Galeão International Airport | Rio de Janeiro, Brazil | UTC−03:00 | |
| GII | GUSI | Siguiri Airport | Siguiri, Guinea | UTC±00:00 | |
| GIL | OPGT | Gilgit Airport | Gilgit, Pakistan | UTC+05:00 | |
| GIM | | Miele Mimbale Airport | Miele Mimbale, Gabon | UTC+01:00 | |
| GIR | SKGI | Santiago Vila Airport | Girardot, Colombia | UTC−05:00 | |
| GIS | NZGS | Gisborne Airport | Gisborne, New Zealand | UTC+12:00 | Sep-Apr |
| GIT | HTGE | Geita Airport | Geita, Tanzania | UTC+03:00 | |
| GIU | VCCS | Sigiriya Airport[1] | Dambulla, Sri Lanka | UTC+05:30 | |
| GIY | FAGI | Giyani Airport | Giyani, South Africa | UTC+02:00 | |
| GIZ | OEGN | Jizan Regional Airport (King Abdullah bin Abdulaziz Airport) | Jizan, Saudi Arabia | UTC+03:00 | |
| -GJ- |
| GJA | MHNJ | Guanaja Airport | Guanaja, Honduras | UTC−06:00 | |
| GJL | DAAV | Jijel Ferhat Abbas Airport | Jijel, Algeria | UTC+01:00 | |
| GJM | SBGM | Guajará-Mirim Airport | Guajará-Mirim, Rondônia, Brazil | UTC−04:00 | |
| GJR | BIGJ | Gjögur Airport | Gjögur, Iceland | UTC±00:00 | |
| GJT | KGJT | Grand Junction Regional Airport (Walker Field) | Grand Junction, Colorado, United States | UTC−07:00 | Mar-Nov |
| -GK- |
| GKA | AYGA | Goroka Airport | Goroka, Papua New Guinea | UTC+10:00 | |
| GKD | LTFK | Gökçeada Airport | Gökçeada, Turkey | UTC+03:00 | |
| GKE | ETNG | NATO Air Base Geilenkirchen | Geilenkirchen, North Rhine-Westphalia, Germany | UTC+01:00 | Mar-Oct |
| GKH | VNGK | Palungtar Airport | Gorkha, Nepal | UTC+05:45 | |
| GKK | VRMO | Kooddoo Airport[1] | Kooddoo, Gaafu Alif Atoll, Maldives | UTC+05:00 | |
| GKL | YGKL | Great Keppel Island Airport | Great Keppel Island, Queensland, Australia | UTC+10:00 | |
| GKN | PAGK | Gulkana Airport | Gulkana, Alaska, United States | UTC−09:00 | Mar-Nov |
| GKO | | Kongo Boumba Airport | Kongo Boumba, Gabon | UTC+01:00 | |
| GKT | KGKT | Gatlinburg–Pigeon Forge Airport | Sevierville, Tennessee, United States | UTC−05:00 | Mar-Nov |
| -GL- |
| GLA | EGPF | Glasgow Airport | Glasgow, Scotland, United Kingdom | UTC±00:00 | Mar-Oct |
| GLB | | San Carlos Apache Airport[1] (FAA: P13) | Globe, Arizona, United States | UTC−07:00 | |
| GLC | | Geladi Airport | Geladi, Ethiopia | UTC+03:00 | |
| GLD | KGLD | Goodland Municipal Airport (Renner Field) | Goodland, Kansas, United States | UTC−07:00 | Mar-Nov |
| GLE | KGLE | Gainesville Municipal Airport | Gainesville, Texas, United States | UTC−06:00 | Mar-Nov |
| GLF | MRGF | Golfito Airport | Golfito, Costa Rica | UTC−06:00 | |
| GLG | YGLE | Glengyle Airport | Glengyle, Queensland, Australia | UTC+10:00 | |
| GLH | KGLH | Mid-Delta Regional Airport | Greenville, Mississippi, United States | UTC−06:00 | Mar-Nov |
| GLI | YGLI | Glen Innes Airport | Glen Innes, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| GLK | HCMR | Abdullahi Yusuf International Airport | Galkayo, Somalia | UTC+03:00 | |
| GLL | ENKL | Gol Airport, Klanten | Gol, Norway | UTC+01:00 | Mar-Oct |
| GLM | YGLO | Glenormiston Airport | Glenormiston, Queensland, Australia | UTC+10:00 | |
| GLN | | Guelmim Airport | Guelmim, Morocco | UTC±00:00 | Mar-Oct[b] |
| GLO | EGBJ | Gloucestershire Airport | Gloucester / Cheltenham, England, United Kingdom | UTC±00:00 | Mar-Oct |
| GLP | AYUP | Gulgubip Airport | Gulgubip, Papua New Guinea | UTC+10:00 | |
| GLR | KGLR | Gaylord Regional Airport | Gaylord, Michigan, United States | UTC−05:00 | Mar-Nov |
| GLS | KGLS | Scholes International Airport at Galveston | Galveston, Texas, United States | UTC−06:00 | Mar-Nov |
| GLT | YGLA | Gladstone Airport | Gladstone, Queensland, Australia | UTC+10:00 | |
| GLU | VQGP | Gelephu Airport[1] | Gelephu, Bhutan | UTC+06:00 | |
| GLV | PAGL | Golovin Airport | Golovin, Alaska, United States | UTC−09:00 | Mar-Nov |
| GLW | KGLW | Glasgow Municipal Airport | Glasgow, Kentucky, United States | UTC−06:00 | Mar-Nov |
| GLX | WAMA | Gamar Malamo Airport | Galela, Indonesia | UTC+09:00 | |
| GLY | | Goldsworthy Airport | Goldsworthy, Western Australia, Australia | UTC+08:00 | |
| GLZ | EHGR | Gilze-Rijen Air Base | Breda, Netherlands | UTC+01:00 | Mar-Oct |
| -GM- |
| GMA | FZFK | Gemena Airport | Gemena, Democratic Republic of the Congo | UTC+01:00 | |
| GMB | HAGM | Gambela Airport | Gambela, Ethiopia | UTC+03:00 | |
| GMC | | Guerima Airport | Guerima, Colombia | UTC−05:00 | |
| GMD | GMMB | Ben Slimane Airport[1] | Ben Slimane, Morocco | UTC±00:00 | Mar-Oct1 |
| GME | UMGG | Gomel Airport | Gomel, Belarus | UTC+03:00 | |
| GMI | AYGT | Gasmata Airport | Gasmata, Papua New Guinea | UTC+10:00 | |
| GMM | FCOG | Gamboma Airport | Gamboma, Republic of the Congo | UTC+01:00 | |
| GMN | NZGM | Greymouth Airport | Greymouth, New Zealand | UTC+12:00 | Sep-Apr |
| GMO | DNGO | Gombe Lawanti International Airport[1] | Gombe, Nigeria | UTC+01:00 | |
| GMP | RKSS | Gimpo International Airport | Seoul, South Korea | UTC+09:00 | |
| GMQ | ZLGL | Golog Maqin Airport[1] | Golog, Qinghai, China | UTC+08:00 | |
| GMR | NTGJ | Totegegie Airport (Gambier Island Airport) | Mangareva, Gambier Islands, French Polynesia | UTC−09:00 | |
| GMS | SNGM | Guimarães Airport | Guimarães, Maranhão, Brazil | UTC−03:00 | |
| GMT | PAGZ | Granite Mountain Air Station (FAA: GSZ) | Granite Mountain, Alaska, United States | UTC−09:00 | Mar-Nov |
| GMU | KGMU | Greenville Downtown Airport | Greenville, South Carolina, United States | UTC−05:00 | Mar-Nov |
| GMV | | Monument Valley Airport (FAA: UT25) | Monument Valley, Utah, United States | UTC−07:00 | Mar-Nov |
| GMZ | GCGM | La Gomera Airport | La Gomera / Canary Islands, Spain | UTC±00:00 | Mar-Oct |
| -GN- |
| GNA | UMMG | Grodno Airport | Grodno, Belarus | UTC+03:00 | |
| GNB | LFLS | Grenoble–Isère Airport | Grenoble, Rhône-Alpes, France | UTC+01:00 | Mar-Oct |
| GND | TGPY | Maurice Bishop International Airport | St. George's, Grenada | UTC−04:00 | |
| GNF | | Gansner Field[1] (FAA: 2O1) | Quincy, California, United States | UTC−08:00 | Mar-Nov |
| GNG | KGNG | Gooding Municipal Airport | Gooding, Idaho, United States | UTC−07:00 | Mar-Nov |
| GNI | RCGI | Lyudao Airport (Green Island Airport) | Lyudao (Green Island), Taiwan | UTC+08:00 | |
| GNJ | UBBG | Ganja International Airport | Ganja, Azerbaijan | UTC+04:00 | |
| GNM | SNGI | Guanambi Airport | Guanambi, Bahia, Brazil | UTC−03:00 | |
| GNN | HAGH | Ginir Airport | Ginir, Ethiopia | UTC+03:00 | |
| GNR | SAHR | Dr. Arturo Umberto Illia Airport | General Roca, Río Negro, Argentina | UTC−03:00 | |
| GNS | WIMB | Binaka Airport | Gunungsitoli, Indonesia | UTC+07:00 | |
| GNT | KGNT | Grants-Milan Municipal Airport | Grants, New Mexico, United States | UTC−07:00 | Mar-Nov |
| GNU | | Goodnews Airport | Goodnews Bay, Alaska, United States | UTC−09:00 | Mar-Nov |
| GNV | KGNV | Gainesville Regional Airport | Gainesville, Florida, United States | UTC−05:00 | Mar-Nov |
| GNY | LTCS | Şanlıurfa GAP Airport | Şanlıurfa, Turkey | UTC+03:00 | |
| GNZ | FBGZ | Ghanzi Airport | Ghanzi, Botswana | UTC+02:00 | |
| -GO- |
| GOA | LIMJ | Genoa Cristoforo Colombo Airport | Genoa, Liguria, Italy | UTC+01:00 | Mar-Oct |
| GOB | HAGB | Robe Airport | Goba, Ethiopia | UTC+03:00 | |
| GOC | AYGX | Gora Airport | Gora, Papua New Guinea | UTC+10:00 | |
| GOE | | Gonaili Airstrip | Gonaili, Papua New Guinea | UTC+10:00 | |
| GOG | FYGB | Gobabis Airport | Gobabis, Namibia | UTC+01:00 | Sep-Apr |
| GOH | BGGH | Nuuk Airport | Nuuk, Greenland | UTC−03:00 | Mar-Oct |
| GOI | VOGO | Dabolim Airport | Dabolim, Goa, India | UTC+05:30 | |
| GOJ | UWGG | Nizhny Novgorod International Airport (Strigino Airport) | Nizhny Novgorod, Nizhny Novgorod Oblast, Russia | UTC+03:00 | |
| GOK | KGOK | Guthrie–Edmond Regional Airport | Guthrie, Oklahoma, United States | UTC−06:00 | Mar-Nov |
| GOL | | Gold Beach Municipal Airport (FAA: 4S1) | Gold Beach, Oregon, United States | UTC−08:00 | Mar-Nov |
| GOM | FZNA | Goma International Airport | Goma, Democratic Republic of the Congo | UTC+02:00 | |
| GON | KGON | Groton–New London Airport | Groton / New London, Connecticut, United States | UTC−05:00 | Mar-Nov |
| GOO | YGDI | Goondiwindi Airport | Goondiwindi, Queensland, Australia | UTC+10:00 | |
| GOP | VEGK | Gorakhpur Airport | Gorakhpur, Uttar Pradesh, India | UTC+05:30 | |
| GOQ | ZLGM | Golmud Airport | Golmud, Qinghai, China | UTC+08:00 | |
| GOR | HAGR | Gore Airport | Gore, Ethiopia | UTC+03:00 | |
| GOS | | Gosford Airport | Gosford, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| GOT | ESGG | Göteborg Landvetter Airport | Gothenburg, Sweden | UTC+01:00 | Mar-Oct |
| GOU | FKKR | Garoua International Airport | Garoua, Cameroon | UTC+01:00 | |
| GOV | YPGV | Gove Airport | Nhulunbuy, Northern Territory, Australia | UTC+09:30 | |
| GOX | VOGA | Manohar International Airport | Mopa, Goa, India | UTC+05:30 | |
| GOZ | LBGO | Gorna Oryahovitsa Airport | Gorna Oryahovitsa, Bulgaria | UTC+02:00 | Mar-Oct |
| -GP- |
| GPA | LGRX | Araxos Airport | Patras, Greece | UTC+02:00 | Mar-Oct |
| GPB | SBGU | Tancredo Thomas de Faria Airport | Guarapuava, Paraná, Brazil | UTC−03:00 | |
| GPD | YGON | Mount Gordon Airport[1] | Mount Gordon Mine, Queensland, Australia | UTC+10:00 | |
| GPI | SKGP | Guapi Airport (Juan Casiano Airport) | Guapi, Colombia | UTC−05:00 | |
| GPL | MRGP | Guápiles Airport | Guápiles, Costa Rica | UTC−06:00 | |
| GPN | YGPT | Garden Point Airport | Pularumpi, Northern Territory, Australia | UTC+09:30 | |
| GPO | SAZG | General Pico Airport | General Pico, La Pampa, Argentina | UTC−03:00 | |
| GPS | SEGS | Seymour Airport | Baltra Island, Galápagos Islands, Ecuador | UTC−06:00 | |
| GPT | KGPT | Gulfport–Biloxi International Airport | Gulfport / Biloxi, Mississippi, United States | UTC−06:00 | Mar-Nov |
| GPZ | KGPZ | Grand Rapids–Itasca County Airport (Gordon Newstrom Field) | Grand Rapids, Minnesota, United States | UTC−06:00 | Mar-Nov |
| -GQ- |
| GQQ | KGQQ | Galion Municipal Airport | Galion, Ohio, United States | UTC−05:00 | Mar-Nov |
| -GR- |
| GRA | | Gamarra Airport | Gamarra, Colombia | UTC−05:00 | |
| GRB | KGRB | Austin Straubel International Airport | Green Bay, Wisconsin, United States | UTC−06:00 | Mar-Nov |
| GRC | | Grand Cess Airport | Grand Cess, Liberia | UTC±00:00 | |
| GRD | KGRD | Greenwood County Airport | Greenwood, South Carolina, United States | UTC−05:00 | Mar-Nov |
| GRE | KGRE | Greenville Airport | Greenville, Illinois, United States | UTC−06:00 | Mar-Nov |
| GRF | KGRF | Gray Army Airfield | Tacoma, Washington, United States | UTC−08:00 | Mar-Nov |
| GRG | OAGZ | Gardez Airport | Gardez, Afghanistan | UTC+04:30 | |
| GRH | | Garuahi Airport | Garuahi, Papua New Guinea | UTC+10:00 | |
| GRI | KGRI | Central Nebraska Regional Airport | Grand Island, Nebraska, United States | UTC−06:00 | Mar-Nov |
| GRJ | FAGG | George Airport | George, South Africa | UTC+02:00 | |
| GRK | KGRK | Killeen Regional Airport / Robert Gray Army Airfield | Fort Hood / Killeen, Texas, United States | UTC−06:00 | Mar-Nov |
| GRL | AYGG | Garasa Airport | Garasa, Papua New Guinea | UTC+10:00 | |
| GRM | KCKC | Grand Marais/Cook County Airport (FAA: CKC) | Grand Marais, Minnesota, United States | UTC−06:00 | Mar-Nov |
| GRN | KGRN | Gordon Municipal Airport | Gordon, Nebraska, United States | UTC−07:00 | Mar-Nov |
| GRO | LEGE | Girona–Costa Brava Airport | Girona, Catalonia, Spain | UTC+01:00 | Mar-Oct |
| GRP | SWGI | Gurupi Airport | Gurupi, Tocantins, Brazil | UTC−03:00 | |
| GRQ | EHGG | Groningen Airport Eelde | Groningen, Netherlands | UTC+01:00 | Mar-Oct |
| GRR | KGRR | Gerald R. Ford International Airport | Grand Rapids, Michigan, United States | UTC−05:00 | Mar-Nov |
| GRS | LIRS | Grosseto Airport | Grosseto, Tuscany, Italy | UTC+01:00 | Mar-Oct |
| GRT | | Gujrat Airport | Gujrat, Pakistan | UTC+05:00 | |
| GRU | SBGR | São Paulo/Guarulhos–Governador André Franco Montoro International Airport | São Paulo, Brazil | UTC−03:00 | |
| GRV | URMG | Grozny Airport | Grozny, Chechnya, Russia | UTC+03:00 | |
| GRW | LPGR | Graciosa Airport | Graciosa, Azores, Portugal | UTC−01:00 | Mar-Oct |
| GRX | LEGR | Federico García Lorca Airport (Granada Jaén Airport) | Granada, Andalusia, Spain | UTC+01:00 | Mar-Oct |
| GRY | BIGR | Grímsey Airport | Grímsey, Iceland | UTC±00:00 | |
| GRZ | LOWG | Graz Airport | Graz, Austria | UTC+01:00 | Mar-Oct |
| -GS- |
| GSA | WBKN | Long Pasia Airport | Long Pasia, Sabah, Malaysia | UTC+08:00 | |
| GSB | KGSB | Seymour Johnson Air Force Base | Goldsboro, North Carolina, United States | UTC−05:00 | Mar-Nov |
| GSC | YGSC | Gascoyne Junction Airport | Gascoyne Junction, Western Australia, Australia | UTC+08:00 | |
| GSE | ESGP | Göteborg City Airport | Gothenburg, Sweden | UTC+01:00 | Mar-Oct |
| GSH | KGSH | Goshen Municipal Airport | Goshen, Indiana, United States | UTC−05:00 | Mar-Nov |
| GSI | SOGS | Grand-Santi Airport[1] | Grand-Santi, French Guiana | UTC−03:00 | |
| GSJ | MGSJ | San José Airport[1] | Puerto San José, Guatemala | UTC−06:00 | |
| GSL | | Taltheilei Narrows Airport[1] (TC: CFA7) | Taltheilei Narrows, Northwest Territories, Canada | UTC−07:00 | Mar-Nov |
| GSM | OIKQ | Dayrestan Airport (Qeshm International Airport) | Qeshm, Iran | UTC+03:30 | Mar-Sep |
| GSN | YMGN | Mount Gunson Airport | Mount Gunson, South Australia, Australia | UTC+09:30 | Oct-Apr |
| GSO | KGSO | Piedmont Triad International Airport | Greensboro, North Carolina, United States | UTC−05:00 | Mar-Nov |
| GSP | KGSP | Greenville–Spartanburg International Airport | Greenville / Spartanburg, South Carolina, United States | UTC−05:00 | Mar-Nov |
| GSQ | HEOW | Sharq Al-Owainat Airport | Sharq Al-Owainat, Egypt | UTC+02:00 | |
| GSR | HCMG | Qardho Airport | Qardho, Somalia | UTC+03:00 | |
| GSS | | Sabi Sabi Airport | Sabie, South Africa | UTC+02:00 | |
| GST | PAGS | Gustavus Airport | Gustavus, Alaska, United States | UTC−09:00 | Mar-Nov |
| GSU | HSGF | Azaza Airport | Gedaref, Sudan | UTC+03:00 | |
| GSV | | Saratov Gagarin Airport | Saratov, Saratov Oblast, Russia | UTC+04:00 | |
| -GT- |
| GTA | AGOK | Gatokae Aerodrome | Gatokae, Solomon Islands | UTC+11:00 | |
| GTE | YGTE | Groote Eylandt Airport | Groote Eylandt, Northern Territory, Australia | UTC+09:30 | |
| GTF | KGTF | Great Falls International Airport | Great Falls, Montana, United States | UTC−07:00 | Mar-Nov |
| GTG | KGTG | Grantsburg Municipal Airport | Grantsburg, Wisconsin, United States | UTC−06:00 | Mar-Nov |
| GTI | EDCG | Rügen Airport (Güttin Airfield) | Güttin, Mecklenburg-Vorpommern, Germany | UTC+01:00 | Mar-Oct |
| GTN | NZGT | Glentanner Aerodrome | Mount Cook, New Zealand | UTC+12:00 | Sep-Apr |
| GTO | WAMG | Jalaluddin Airport | Gorontalo, Indonesia | UTC+08:00 | |
| GTP | | Grants Pass Airport[1] (FAA: 3S8) | Grants Pass, Oregon, United States | UTC−08:00 | Mar-Nov |
| GTR | KGTR | Golden Triangle Regional Airport | Columbus / West Point / Starkville, Mississippi, United States | UTC−06:00 | Mar-Nov |
| GTS | YTGT | The Granites Airport | The Granites, Northern Territory, Australia | UTC+09:30 | |
| GTT | YGTN | Georgetown Airport | Georgetown, Queensland, Australia | UTC+10:00 | |
| GTW | LKHO | Holešov Airport | Zlín, Czech Republic | UTC+01:00 | Mar-Oct |
| GTY | | Gettysburg Regional Airport (FAA: W05) | Gettysburg, Pennsylvania, United States | UTC−05:00 | Mar-Nov |
| GTZ | | Kirawira B Airstrip[1] | Grumeti, Tanzania | UTC+03:00 | |
| -GU- |
| GUA | MGGT | La Aurora International Airport | Guatemala City, Guatemala | UTC−06:00 | |
| GUB | MMGR | Guerrero Negro Airport | Guerrero Negro, Baja California Sur,[c] Mexico | UTC−07:00 | Apr-Oct |
| GUC | KGUC | Gunnison–Crested Butte Regional Airport | Gunnison, Colorado, United States | UTC−07:00 | Mar-Nov |
| GUD | GAGM | Goundam Airport | Goundam, Mali | UTC±00:00 | |
| GUE | | Guriaso Airport | Guriaso, Papua New Guinea | UTC+10:00 | |
| GUF | KJKA | Jack Edwards Airport (FAA: JKA) | Gulf Shores, Alabama, United States | UTC−06:00 | Mar-Nov |
| GUG | AYGF | Guari Airport | Guari, Papua New Guinea | UTC+10:00 | |
| GUH | YGDH | Gunnedah Airport | Gunnedah, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| GUI | SVGI | Güiria Airport | Güiria, Venezuela | UTC−04:00 | |
| GUJ | SBGW | Guaratinguetá Airport | Guaratinguetá, São Paulo, Brazil | UTC−03:00 | |
| GUL | YGLB | Goulburn Airport | Goulburn, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| GUM | PGUM | Antonio B. Won Pat International Airport (Guam Int'l) | Hagåtña, Guam | UTC+10:00 | |
| GUP | KGUP | Gallup Municipal Airport | Gallup, New Mexico, United States | UTC−07:00 | Mar-Nov |
| GUQ | SVGU | Guanare Airport | Guanare, Venezuela | UTC−04:00 | |
| GUR | AYGN | Gurney Airport | Alotau, Papua New Guinea | UTC+10:00 | |
| GUS | KGUS | Grissom Air Reserve Base | Peru, Indiana, United States | UTC−05:00 | Mar-Nov |
| GUT | ETUO | RAF Gütersloh | Gütersloh, North Rhine-Westphalia, Germany | UTC+01:00 | Mar-Oct |
| GUU | BIGF | Grundarfjörður Airport | Grundarfjörður, Iceland | UTC±00:00 | |
| GUV | AYML | Mougulu Airport | Mougulu, Papua New Guinea | UTC+10:00 | |
| GUW | UATG | Atyrau Airport | Atyrau, Kazakhstan | UTC+05:00 | |
| GUX | VAGN | Guna Airport | Guna, Madhya Pradesh, India | UTC+05:30 | |
| GUY | KGUY | Guymon Municipal Airport | Guymon, Oklahoma, United States | UTC−06:00 | Mar-Nov |
| GUZ | SNGA | Guarapari Airport | Guarapari, Espírito Santo, Brazil | UTC−03:00 | |
| -GV- |
| GVA | LSGG | Geneva Airport | Geneva, Switzerland | UTC+01:00 | Mar-Oct |
| GVE | KGVE | Gordonsville Municipal Airport | Gordonsville, Virginia, United States | UTC−05:00 | Mar-Nov |
| GVI | AYGV | Green River Airport | Green River, Papua New Guinea | UTC+10:00 | |
| GVL | KGVL | Lee Gilmer Memorial Airport | Gainesville, Georgia, United States | UTC−05:00 | Mar-Nov |
| GVN | UHKM | Sovetskaya Gavan Airport[1] | Sovetskaya Gavan, Khabarovsk Krai, Russia | UTC+10:00 | |
| GVP | YGNV | Greenvale Airport | Greenvale, Queensland, Australia | UTC+10:00 | |
| GVR | SBGV | Coronel Altino Machado de Oliveira Airport | Governador Valadares, Minas Gerais, Brazil | UTC−03:00 | |
| GVT | KGVT | Majors Airport | Greenville, Texas, United States | UTC−06:00 | Mar-Nov |
| GVX | ESSK | Gävle-Sandviken Airport | Gävle, Sweden | UTC+01:00 | Mar-Oct |
| -GW- |
| GWA | VYGW | Gwa Airport | Gwa, Myanmar | UTC+06:30 | |
| GWD | OPGD | Gwadar International Airport | Gwadar, Pakistan | UTC+05:00 | |
| GWE | FVTL | Thornhill Air Base | Gweru, Zimbabwe | UTC+02:00 | |
| GWL | VIGR | Rajmata Vijaya Raje Scindia Airport (Gwalior Airport) | Gwalior, Madhya Pradesh, India | UTC+05:30 | |
| GWN | | Gnarowein Airport | Gnarowein, Papua New Guinea | UTC+10:00 | |
| GWO | KGWO | Greenwood–Leflore Airport | Greenwood, Mississippi, United States | UTC−06:00 | Mar-Nov |
| GWS | KGWS | Glenwood Springs Municipal Airport | Glenwood Springs, Colorado, United States | UTC−07:00 | Mar-Nov |
| GWT | EDXW | Sylt Airport (Westerland Airport) | Sylt, Schleswig-Holstein, Germany | UTC+01:00 | Mar-Oct |
| GWV | | Glendale Fokker Field (FAA: WV66) | Glen Dale, West Virginia, United States | UTC−05:00 | Mar-Nov |
| GWY | EICM | Galway Airport | Galway, Ireland | UTC±00:00 | Mar-Oct |
| -GX- |
| GXA | WAOM | Beringin Airport | North Barito, Central Kalimantan, Indonesia | UTC+09:00 | |
| GXF | OYSY | Sayun Airport | Sayun, Yemen | UTC+03:00 | |
| GXG | FNNG | Negage Airport | Negage, Angola | UTC+01:00 | |
| GXH | ZLXH | Gannan Xiahe Airport | Xiahe, Gansu, China | UTC+08:00 | |
| GXQ | SCCY | Teniente Vidal Airfield | Coyhaique, Chile | UTC−04:00 | Aug-May |
| GXX | FKKJ | Yagoua Airport | Yagoua, Cameroon | UTC+01:00 | |
| GXY | KGXY | Greeley–Weld County Airport | Greeley, Colorado, United States | UTC−07:00 | Mar-Nov |
| -GY- |
| GYA | SLGY | Guayaramerín Airport | Guayaramerín, Bolivia | UTC−04:00 | |
| GYD | UBBB | Heydar Aliyev International Airport | Baku, Azerbaijan | UTC+04:00 | |
| GYE | SEGU | José Joaquín de Olmedo International Airport | Guayaquil, Ecuador | UTC−05:00 | |
| GYG | UEMM | Magan Airport | Magan, Yakutia, Russia | UTC+09:00 | |
| GYI | HRYG | Gisenyi Airport | Gisenyi, Rwanda | UTC+02:00 | |
| GYL | YARG | Argyle Airport | Argyle, Western Australia, Australia | UTC+08:00 | |
| GYM | MMGM | General José María Yáñez International Airport | Guaymas, Sonora, Mexico | UTC−07:00 | |
| GYN | SBGO | Santa Genoveva Airport | Goiânia, Goiás, Brazil | UTC−03:00 | |
| GYP | YGYM | Gympie Airport | Gympie, Queensland, Australia | UTC+10:00 | |
| GYR | KGYR | Phoenix Goodyear Airport | Goodyear, Arizona, United States | UTC−07:00 | |
| GYS | ZUGU | Guangyuan Panlong Airport | Guangyuan, Sichuan, China | UTC+08:00 | |
| GYU | ZLGY | Guyuan Liupanshan Airport[1] | Guyuan, Ningxia, China | UTC+08:00 | |
| GYZ | YGRM | Gruyere Airport | Gruyere, Western Australia, Australia | UTC+08:00 | |
| -GZ- |
| GZA | LVGZ | Yasser Arafat International Airport | Gaza, Palestine | UTC+02:00 | Mar-Sep |
| GZG | ZUGZ | Garze Gesar Airport | Garzê County, Sichuan, China | | |
| GZI | OAGN | Ghazni Airport | Ghazni, Afghanistan | UTC+04:30 | |
| GZO | AGGN | Nusatupe Airport | Gizo, Western Province, Solomon Islands | UTC+11:00 | |
| GZP | LTFG | Gazipaşa–Alanya Airport[1] | Gazipaşa, Turkey | UTC+03:00 | |
| GZT | LTAJ | Gaziantep Oğuzeli International Airport | Gaziantep, Turkey | UTC+03:00 | |
| GZW | OIIK | Qazvin Airport[1] | Qazvin, Iran | UTC+03:30 | Mar-Sep |