This is a list of all airline codes . The table lists the IATA airline designators, the ICAO airline designators and the airline call signs (telephony designator). Historical assignments are also included for completeness.
| IATA | ICAO | Airline | Call sign | Country | Comments |
|---|---|---|---|---|---|
| GML | G & L Aviation | GEEANDEL | South Africa | ||
| DBC | Gemini Air Group | DIAMOND BACK | United States | Allocated in 2014 [1] | |
| GOP | Gospa Air | GOSPA AIR | Mexico | ||
| HGT | GMJ Air Shuttle | HIGHTECH | United States | Private air shuttle for Intel Corporation Employees | |
| GRE | Greenlandcopter | Denmark | |||
| GMQ | Germania Express | CORGI | Germany | ||
| KNM | GB Helicopters | KINGDOM | United Kingdom | ||
| GCW | Global Air Crew | GLOBALCREW | Denmark | ||
| GBH | Global Avia Handling | Russia | |||
| Y5 | GMR | Golden Myanmar Airlines | GOLDEN MYANMAR | Myanmar | |
| EXH | G5 Executive | BATMAN | Switzerland | ||
| MTA | GAK/Mitchell Aero | GAK AVIATION | United States | ||
| GGS | GATSA | GATSA | Mexico | ||
| GBX | GB Airlink | ISLAND TIGER | United States | ||
| GT | GBL | GB Airways | GEEBEE AIRWAYS | United Kingdom | |
| GCS | GCS Air Service | GALION | United States | ||
| FFU | GEC Marconi Avionics | FERRANTI | United Kingdom | ||
| GCC | GECAS | GECAS | Ireland | ||
| GEN | GENSA | GENSA-BRASIL | Brazil | ||
| GET | Get High | AIR FLOW | Portugal | ||
| GET | GETRA | GETRA | Equatorial Guinea | ICAO Code no longer allocated | |
| GFW | GFW Aviation | Australia | |||
| GGT | Trans Island Airways | THUNDERBALL | Bahamas | ||
| GHI | GH Stansted Limited | United Kingdom | |||
| Z5 | GMG | GMG Airlines | GMG | Bangladesh | |
| GPE | GP Express Airlines | REGIONAL EXPRESS | United States | ||
| GPR | GPM Aeroservicio | GPM AEROSERVICIO | Mexico | ||
| GIB | GR-Avia | GRAVIA | Guinea | ||
| BMK | GST Aero Aircompany | MURAT | Kazakhstan | ||
| GTX | GTA Air | BIG-DEE | United States | ||
| GAH | Ga-Ma Helicoptere | GAMHELICO | France | ||
| GBE | Gabon Express | GABEX | Gabon | ||
| GRT | Gabon-Air-Transport | Gabon | |||
| GIG | Gacela Air Cargo | GACELA AIR | Mexico | ||
| GFC | Gail Force Express | GAIL FORCE | United States | ||
| GNJ | Gain Jet Aviation | HERCULES JET | Greece | ||
| SWF | Galair International | GALAIR | United Kingdom | ||
| GLS | Galaircervis | GALS | Ukraine | ||
| 7O | GAL | Galaxy Air | GALAXY | Kyrgyzstan | |
| GXY | Galaxy Airlines | GALAX | Japan | ||
| GAS | Galena Air Service | GALENA AIR SERVICE | United States | ||
| 1G | Galileo International | United States | |||
| GMA | Gama Aviation | GAMA | United Kingdom | ||
| GCH | Gama Aviation Switzerland | GAMA SWISS | Switzerland | ||
| GC | GNR | Gambia International Airlines | GAMBIA INTERNATIONAL | Gambia | |
| NML | Gambia New Millennium Air | NEWMILL | Gambia | ||
| GMJ | Gamisa Aviación | GAMISA | Spain | ||
| G7 | GNF | Gandalf Airlines | Gandalf | Italy | |
| GAN | Gander Aviation | GANAIR | Canada | ||
| GSA | Garden State Airlines | GARDEN STATE | United States | ||
| AHM | Garrison Aviation | AIR HURON | Canada | ||
| GA | GIA | Garuda Indonesia | INDONESIA | Indonesia | |
| GHS | Gatari Hutama Air Services | GATARI | Indonesia | ||
| EGO | Gauteng Air Cargo | GAUTENG | South Africa | ||
| GVN | Gavina | GAVINA | Spain | ||
| 4G | GZP | Gazpromavia | GAZPROMAVIA | Russia | |
| GEE | Geesair | GEESAIR | Canada | ||
| GLX | Gelix Airlines | RUSSIAN BIRD | Russia | ||
| GR | GCO | Gemini Air Cargo | GEMINI | United States | |
| GAB | Gendall Air | GENDALL | Canada | ||
| GDB | Gendarmerie Belge | BELGIAN GENERMERIE | Belgium | ||
| FGN | National Gendarmerie | FRANCE GENDARME | France | ||
| SWK | General Aerospace | SKYWALKER | Canada | ||
| GWS | General Airways | GENAIR | South Africa | ||
| GNZ | General Aviation | GONZO | Poland | ||
| GTH | General Aviation Flying Services | GOTHAM | United States | ||
| XGA | General Aviation Terminal | Canada | |||
| GMC | General Motors | GENERAL MOTORS | United States | ||
| GNX | Genex | Belarus | |||
| GSL | Geographic Air Surveys | SURVEY-CANADA | Canada | ||
| A9 | TGZ | Georgian Airways | TAMAZI | Georgia | |
| FGA | Georgian Aviation Federation | GEORGIA FED | Georgia | ||
| GGF | Georgian Cargo Airlines Africa | GEORGIAN AFRICA | Senegal | ||
| QB | GFG | Georgian National Airlines | NATIONAL | Georgia | |
| Great Barrier Airlines | New Zealand | Not ICAO allocated – GBA issued for domestic use by the Civil Aviation Authority of New Zealand | |||
| GAF | German Air Force | GERMAN AIR FORCE | Germany | ||
| GAM | German Army | GERMAN ARMY | Germany | ||
| GNY | German Navy | GERMAN NAVY | Germany | ||
| HE | LGW | German Airways | WALTER | Germany | Former name: Luftfahrtgesellschaft Walter |
| GHY | German Sky Airlines | GERMAN SKY | Germany | ||
| ST | GMI | Germania | GERMANIA | Germany | |
| 4U | GWI | Germanwings | GERMAN WINGS | Germany | |
| GDN | Gerry's Dnata | Pakistan | |||
| GFD | Gesellschaft Fur Flugzieldarstellung | KITE | Germany | ||
| GP | RIV | APG Airlines | RIVERA | France | |
| GES | Gestair | GESTAIR | Spain | ||
| GTR | Gestar | STAR GESTAR | Chile | ||
| GJT | Gestión Aérea Ejecutiva | BANJET | Spain | ||
| GHT | Ghadames Air Transport | Libya | |||
| GH | GLP | Globus Airlines | GLOBUS | Russia | |
| GH | GHA | Ghana Airways | GHANA | Ghana | defunct |
| G0 | GHB | Ghana International Airlines | GHANA AIRLINES | Ghana | |
| NTC | Gibson Aviation | NIGHT CHASE | United States | ||
| RPS | Global Air Charter | RESPONSE | United States | ||
| GAG | Greybird Pilot Academy | GEEBIRD | Denmark | ||
| DMJ | Global Air | DAMOJH | Mexico | defunct | |
| GBS | Global Air Services Nigeria | GLOBAL SERVE | Nigeria | ||
| GLC | Global Aircargo | Bahrain | |||
| Global Airways (Turks and Caicos) | Turks and Caicos Islands | ||||
| BSP | Global Airways (BSP) | Democratic Republic of Congo | |||
| GLB | Global Airways (GLB) | GLO-AIR | United States | Air Castle Corporation | |
| GBB | Global Aviation Operations | GLOBE | South Africa | ||
| GAK | Global Aviation and Services Group | AVIAGROUP | Libya | ||
| GGZ | Global Georgian Airways | GLOBAL GEORGIAN | Georgia | ||
| GLJ | Global Jet Austria | GLOBAL JET AUSTRIA | Austria | ||
| NSM | Global Jet Corporation | THUNDERCLOUD | United States | ||
| SVW | Global Jet Luxembourg | SILVER ARROWS | Luxembourg | ||
| GSK | Global Sky Aircharter | GLOBAL SKY | United States | ||
| GSS | Global Supply Systems | JET LIFT | United Kingdom | ||
| XGS | Global System | United States | |||
| XGW | Global Weather Dynamics | United States | |||
| GLW | Global Wings | Japan | |||
| GJA | Globe Jet | Lebanon | |||
| GAC | GlobeAir | DREAM TEAM | Austria | ||
| 6G | RLX | Go2Sky | RELAX | Slovakia | |
| G8 | GOW | GoAir | GOAIR | India | |
| GK | Go One Airways | United Kingdom | Defunct? | ||
| G7 | GJS | GoJet Airlines | LINDBERGH | United States | |
| GGE | Gobierno De Guinea Ecuatorial | Equatorial Guinea | |||
| GOF | Gof-Air | GOF-AIR | Mexico | ||
| GOI | Gofir | SWISS HAWK | Switzerland | ||
| G3 | GLO | Gol Transportes Aéreos | GOL TRANSPORTE | Brazil | Brazilian low-cost airline. |
| GBT | Gold Belt Air Transport | GOLD BELT | Canada | defunct | |
| GDA | GoldAir | AIR PARTNER | United Kingdom | ||
| GDK | Goldeck-Flug | GOLDECK FLUG | Austria | ||
| DC | GAO | Golden Air | GOLDEN | Sweden | |
| GDD | Golden Airlines | GOLDEN AIRLINES | United States | ||
| GPA | Golden Pacific Airlines | GOLDEN PAC | United States | ||
| GRS | Golden Rule Airlines | GOLDEN RULE | Kyrgyzstan | ||
| GLD | Golden Star Air Cargo | GOLDEN STAR | Sudan | ||
| GOS | Goldfields Air Services | Australia | |||
| GAQ | Golfe Air Quebec | GOLFAIR | Canada | ||
| GLE | Goliaf Air | GOLIAF AIR | São Tomé and Príncipe | ||
| GOM | Gomel Airlines | GOMEL | Belarus | ||
| 5Z | GON | Gonini Air Services | GONINI | Suriname | defunct |
| RDR | Goodridge (UK) Limited | RED STAR | United Kingdom | ||
| G1 | Gorkha Airlines | GORKHA AIRLINES | Nepal | ?ICAO | |
| GOR | Gorlitsa Airlines | GORLITSA | Ukraine | ||
| HKG | Government Flying Service | HONGKONG GOVERNMENT | Hong Kong SAR of China | ||
| GRZ | Government of Zambia Communications Flight | COM FLIGHT | Zambia | ||
| HLD | Grampian Flight Centre | GRANITE | United Kingdom | ||
| GAV | Granada Aviación | GRANAVI | Spain | ||
| GAE | Grand Aire Express | GRAND EXPRESS | United States | ||
| GND | Grand Airways | GRAND VEGAS | United States | ||
| CVU | Grand Canyon Airlines | CANYON VIEW | United States | ||
| GV | GUN | Grant Aviation | HOOT | United States | |
| LMK | Grantex Aviation | LANDMARK | United Kingdom | ||
| GRA | Great American Airways | GREAT AMERICAN | United States | Defunct | |
| GRA | Guardian Air Asset Management | FLEX | South Africa | issued in 2017 | |
| ZK | GLA | Great Lakes Airlines | LAKES AIR | United States | |
| GLU | Great Lakes Airways (Uganda) | LAKES CARGO | Uganda | ||
| GRP | Great Plains Airlines | GREAT PLAINS | United States | ||
| IJ | GWL | Great Wall Airlines | GREAT WALL | China | |
| GWA | Great Western Air | G-W AIR | United States | ||
| HB | HGB | Greater Bay Airlines | GREATER BAY | Hong Kong | |
| HNA | Greek Navy | HELLENIC NAVY | Greece | ||
| GFF | Griffin Aviation | GRIFFIN AIR | Cyprus | ||
| GXA | Grixona | GRIXONA | Moldova | ||
| GZD | Grizodubova Air Company | GRIZODUBOVA AIR | Russia | ||
| HTG | Grossmann Air Service | GROSSMANN | Austria | ||
| GSJ | Grossmann Jet Service | GROSSJET | Czech Republic | ||
| GHV | Ground Handling Service de Mexico | GROUND HANDLING | Mexico | ||
| GPM | Grup Air-Med | GRUPOMED | Spain | ||
| EJC | Grupo De Aviación Ejecutiva | GRUPOEJECUTIVA | Mexico | ||
| TAT | Grupo TACA | TACA-COSTARICA | Costa Rica | ||
| VMM | Grupo Vuelos Mediterraneo | VUELOS MED | Spain | ||
| GMT | Grupo Aéreo Monterrey | GRUPOMONTERREY | Mexico | ||
| GSY | Guard Systems | GUARD AIR | Norway | ||
| G6 | BSR | Guine Bissaur Airlines | BISSAU AIRLINES | Guinea-Bissau | |
| GIJ | Guinea Airways | GUINEA AIRWAYS | Guinea | ||
| GNC | Guinea Cargo | GUINEA CARGO | Equatorial Guinea | ||
| J9 | GIF | Guinee Airlines | GUINEE AIRLINES | Guinea | defunct |
| GEA | Guinea Ecuatorial Airlines | GEASA | Equatorial Guinea | ||
| GIQ | Guinee Paramount Airlines | GUIPAR | Guinea | ||
| CGH | Guizhou Airlines | GUIZHOU | China | ||
| GUS | Guja | GUJA | Mexico | ||
| G8 | GUJ | Gujarat Airways | GUJARATAIR | India | |
| TSU | Gulf & Caribbean Cargo / Contract Air Cargo | TRANSAUTO | United States | ||
| GUF | Gulf African Airlines | GULF AFRICAN | The Gambia | ||
| GF | GFA | Gulf Air | GULF AIR | Bahrain | |
| GAT | Gulf Air Inc | GULF TRANS | United States | ||
| GCN | Gulf Central Airlines | GULF CENTRAL | United States | ||
| SFY | Gulf Flite Center | SKY FLITE | United States | ||
| GPC | Gulf Pearl Air Lines | AIR GULFPEARL | Libya | ||
| GLF | Gulfstream Aerospace | GULFSTREAM TEST | United States | ||
| GFS | Gulfstream Airlines | GULFSTAR | United States | ||
| GFT | Gulfstream International Airlines | GULF FLIGHT | United States | ||
| GUL | Gull Air | GULL-AIR | United States | ||
| GUM | Gum Air | GUM AIR | Suriname | ||
| GDH | Guneydogu Havacilik Isletmesi | RISING SUN | Turkey | ||
| GY | Guyana Airways 2000 | ||||
| GWN | Gwyn Aviation | GWYN | United Kingdom | ||