| IATA/ICAO Sign | Name of airline |
|---|---|
| CHH | Hainan Airlines |
| HAY | Hamburg Airways |
| HGR | Hangar 8 Ltd |
| HLF | Hapag Lloyd |
| HAL | Hawiian Air |
| HEJ | Hellas Jet |
| FHE | Hello AG |
| OAW | Helvetic |
| HMS | Hemus Air |
| HFY | Hi Fly |
| HHI | HI Hamburg International |
| HOA | Hola Airlines |
| HCC | HOLIDAYS Czech Airlines |
| HXL | Holland Exel |
| CRK | Hong Kong Airlines |
| HKE | Hong Kong Express Airways |
| QXE | Horizon Airlines |