| City/Airport Name | Country | Airport Code | |
| GABERONE KHAMA | Botswana | GBE | |
| GADSDEN | USA | GAD | USA (ALABAMA) |
| GAGNOA VILLE | Ivory Coast | GGN | |
| GAINESVILLE | USA | GNV | USA (FLORIDA) |
| GALAPAGOS BALTRA | Ecuador | GPS | GALAPAGOS I. (ECUADOR) |
| GALCAIO | Somalia | GLK | |
| GALELA GAMARMALAMO | Indonesia | GLX | |
| GALENA | USA | GAL | USA (ALASKA) |
| GALLIVARE | Sweden | GEV | |
| GALLUP | USA | GUP | USA (NEW MEXICO) |
| GALVESTON SCHOLES FIELD | USA | GLS | USA (TEXAS) |
| GALWAY CARNMORE | Republic of Ireland | GWY | IRELAND |
| GAMBA | Gabon | GAX | |
| GAMBELL | USA | GAM | USA (ALASKA) |
| GAMBELLA GAMBELLA NEW APT. | Ethiopia | GMB | |
| GAMBIER ISLAND GAMBIER ISLANDS | French Polynesia | GMR | |
| GAMBOMA | Congo, Democratic Republic of | GMM | CONGO |
| GANDER INTERNATIONAL | Canada | YQX | CANADA (NEWFOUNDLAND) |
| GANZHOU | Taiwan | KOW | CHINA |
| GAO KOROGOUSSOU | Somalia | GAQ | MALI |
| GARDEN POINT | Australia | GPN | AUSTRALIA (NT) |
| GARDEZ | Afghanistan | GRG | |
| GARISSA | Kenya | GAS | |
| GAROE | Somalia | GGR | |
| GAROUA | Cameroon | GOU | |
| GARY MUNICIPAL | USA | GYY | USA (INDIANA) |
| GASPE | Canada | YGP | CANADA (QUEBEC) |
| GASUKE | Papua New Guinea | GBC | |
| GATINEAU | Canada | YND | CANADA (QUEBEC) |
| GAVLE SANDVIKEN | Sweden | GVX | |
| GAZIANTEP | Turkey | GZT | |
| GBADOLITE | | BDT | ZAIRE |
| GBANGBATOK | Sierra Leone | GBK | |
| GDANSK REBIECHOWO | Poland | GDN | |
| GEBE | Indonesia | GEB | |
| GECITKALE ELECTR. SURVEILLANCE | Cyprus | GEC | |
| GEMENA | | GMA | ZAIRE |
| GENEINA | Sudan | EGN | |
| GENERAL ROCA | Argentina | GNR | |
| GENEVA COINTRIN | Switzerland | GVA | |
| GENOA SESTRI | Italy | GOA | |
| GEORGE P. W. BOTHA | South Africa | GRJ | |
| GEORGE TOWN EXUMA ISLAND | Bahamas | GGT | |
| GEORGETOWN TIMEHRI | Guyana | GEO | |
| GERALDTON | USA | GET | USA (WA) |
| GERALDTON NORTH | Canada | YGQ | CANADA (ONTARIO) |
| GERONA COSTA BRAVA | Spain | GRO | |
| GETHSEMANI | Canada | ZGS | CANADA (QUEBEC) |
| GEWOYA | Papua New Guinea | GEW | |
| GHADAMES | Libya | LTD | |
| GHANZI | Botswana | GNZ | |
| GHARDAIA NOUMERATE | Algeria | GHA | |
| GHAT | Libya | GHT | |
| GHINNIR | Ethiopia | GNN | |
| GIBRALTAR NORTH FRONT | Gibraltar | GIB | |
| GILETTE | USA | GCC | USA (WYOMING) |
| GILLAM | Canada | YGX | CANADA (MANITOBA) |
| GILLIES BAY | Canada | YGB | CANADA (BR. COLUMBIA) |
| GISBORNE | New Zealand | GIS | |
| GISENYI | Rwanda | GYI | |
| GITEGA | Burundi | GID | |
| GIZO NUSATUPE | | GZO | SOLOMON ISLANDS |
| GLADSTONE | Australia | GLT | AUSTRALIA (QUEENSLAND) |
| GLASGOW | USA | GGW | USA (MT) |
| GLASGOW INTERNATIONAL | | GLA | SCOTLAND |
| GLEN INNES | Australia | GLI | AUSTRALIA (NSW) |
| GLENDIVE | USA | GDV | USA (MT) |
| GOA MIL. (NAVY) & CIVIL | India | GOI | |
| GOBA ROBE | Ethiopia | GOB | |
| GOBERNADOR GREGORES | Argentina | GGS | ARGENTINA (SC) |
| GOD'S NARROWS | Canada | YGO | CANADA (MANITOBA) |
| GOD'S RIVER | Canada | ZGI | CANADA (MANITOBA) |
| GODE | Ethiopia | GCE | |
| GODHAVN | Greenland | JGO | GREENLAND (DENMARK) |
| GODTHAAB NUUK | Greenland | GOH | GREENLAND (DENMARK) |
| GOIANIA SANTA GENOVEVA | Brazil | GYN | BRAZIL (GO) |
| GOJA HAVEN | Canada | YHK | CANADA (NW TERRITORIES) |
| GOLD COAST | Australia | OOL | AUSTRALIA (QUEENSLAND) |
| GOLFITO | Costa Rica | GLF | |
| GOLOVIN | USA | GLV | USA (ALASKA) |
| GOMA | | GOM | ZAIRE |
| GOMEL | Russia | GME | |
| GONDAR | Ethiopia | GDQ | |
| GOODLAND | USA | GLD | USA (KS) |
| GOODNEWS BAY | USA | GNU | USA (ALASKA) |
| GOOSE BAY | Canada | YYR | CANADA (NEWFOUNDLAND) |
| GORA | Papua New Guinea | GOC | |
| GORAKHPUR MIL. & CIVIL | India | GOP | |
| GORE | Ethiopia | GOR | |
| GORE BAY | Canada | YZE | CANADA (ONTARIO) |
| GORKIJ | Russia | GOJ | |
| GORNA ORECHOVICA | Bulgaria | GOZ | |
| GOROKA | Papua New Guinea | GKA | |
| GOROM GOROM | Burkina Faso | XGG | |
| GORONTALO JALALUDDIN | Indonesia | GTO | |
| GOTHENBORG LANDVETTER | Sweden | GOT | |
| GOTHENBURG SAEVE | Sweden | GSE | |
| GOUNDAM | Somalia | GUD | MALI |
| GOVE | Australia | GOV | AUSTRALIA (NT) |
| GOVERNADOR VALADARES | Brazil | GVR | BRAZIL (MG) |
| GOVERNOR'S HARBOR | Bahamas | GHB | |
| GRACIOSA ISLAND | Portugal | GRW | ACORES (PORTUGAL) |
| GRAFTON | Australia | GFN | AUSTRALIA (NSW) |
| GRAN CANARIA LAS PALMAS | Spain | LPA | CANARY ISLANDS (SPAIN) |
| GRANADA ARMILLA | Spain | GRX | |
| GRAND BEREBY NERO-MER | Ivory Coast | BBV | |
| GRAND CANYON HELIPORT | USA | JGC | USA (ARIZONA) |
| GRAND CANYON NATIONAL PARK | USA | GCN | USA (ARIZONA) |
| GRAND CAYMAN | Cayman Islands | GCM | CAYMAN ISLANDS (GB) |
| GRAND FORKS | USA | GFK | USA (NORTH DAKOTA) |
| GRAND HARBOR CAY | Bahamas | GHC | |
| GRAND ISLAND | USA | GRI | |
| GRAND JUNCTION WALKER FIELD | USA | GJT | USA (COLORADO) |
| GRAND RAPIDS | USA | GPZ | USA (MN) |
| GRAND RAPIDS COUNTY CASCADE | USA | GRR | USA (MICHIGAN) |
| GRAND TURK | | GDT | TURKS & CAICOS I. (UK) |
| GRANDE PRAIRIE | Canada | YQU | CANADA (ALBERTA) |
| GRASSFIELD NIMBA-LAMCO | Liberia | NIA | |
| GRAYLING | USA | KGX | USA (ALASKA) |
| GRAZ THALERHOF | Austria | GRZ | |
| GREAT BEND | USA | GBD | USA (KS) |
| GREAT FALLS INTERNATIONAL | USA | GTF | USA (MONTANA) |
| GREAT KEPPEL ISLAND | Australia | GKL | AUSTRALIA (QUEENSLAND) |
| GREEN BAY AUSTIN STRAUBEL | USA | GRB | USA (WISCONSIN) |
| GREEN ISLAND | Taiwan | GNI | TAIWAN |
| GREEN RIVER | Papua New Guinea | GVI | |
| GREENSBORO PIEDMONT TRIAD INTERNATIONAL | USA | GSO | USA (NC) |
| GREENVILLE | USA | GLH | USA (MS) |
| GREENVILLE | USA | PGV | USA (NC) |
| GREENVILLE SINOE | Liberia | SNI | |
| GREENVILLE SPARTANBURG | USA | GSP | USA (SOUTH CAROLINA) |
| GRENADA | Grenada | GND | |
| GRENOBLE SAINT GEOIRS | France | GNB | |
| GREYBULL SOUTH BIG HORN COUNTY | USA | GEY | USA (WYOMING) |
| GRIFFITH | Australia | GFF | AUSTRALIA (NSW) |
| GRIMSEY | Iceland | GRY | |
| GRISE FIORD | Canada | YGZ | CANADA (NW TERRITORIES) |
| GRONINGEN EELDE | Netherlands | GRQ | |
| GRONNEDAL | Greenland | JGR | GREENLAND (DENMARK) |
| GROOTE EYLANDT | Australia | GTE | AUSTRALIA (NT) |
| GROOTFONTEIN | Namibia | GFY | |
| GROTON-NEW LONDON TRUMBULL | USA | GON | USA (CONNECTICUT) |
| GROZNYJ | Russia | GRV | |
| GUACAMAYA | Colombia | GCA | |
| GUADALAJARA DON MIGUEL HIDALGO | Mexico | GDL | |
| GUAM AGANA FIELD | Guam | GUM | GUAM (U.S.) |
| GUANAJA | Honduras | GJA | |
| GUANAMBI | Brazil | GNM | BRAZIL (BA) |
| GUANARE PORTUGUESA | Venezuela | GUQ | |
| GUANGZHOU BAIYUN | Taiwan | CAN | CHINA |
| GUANTANAMO LOS CANOS | Cuba | GAO | |
| GUAPI | Colombia | GPI | |
| GUATEMALA CITY LA AURORA | Guatemala | GUA | |
| GUAYAQUIL SIMON BOLIVAR | Ecuador | GYE | |
| GUAYARAMERIN | Bolivia | GYA | |
| GUAYMAS GEN. J. M. YANEZ | Mexico | GYM | |
| GUERNSEY | | GCI | GUERNSEY ISLD. (GB) |
| GUIGLO | Ivory Coast | GGO | |
| GUILIN | Taiwan | KWL | CHINA |
| GUIRIA SUCRE | Venezuela | GUI | |
| GUIYANG | Taiwan | KWE | CHINA |
| GULFPORT BILOXI REGIONAL | USA | GPT | USA (MS) |
| GUNNEDAH | Australia | GUH | AUSTRALIA (NSW) |
| GUNNISON | USA | GUC | USA (COLORADO) |
| GURUPI | Brazil | GRP | BRAZIL (GO) |
| GURYEV | Russia | GUW | |
| GUSTAVUS | USA | GET | USA (ALASKA) |
| GUWAHATI | India | GAU | |
| GWALIOR | India | GWL | |
| GWERU GWERU | Zimbabwe | GWE | |
