| H C Airlines | NP | HLA | |
| Hahn Air | HR | HHN | 169 |
| Hainan Airlines | HU | CHH | 880 |
| Haiti Air Freight International | 9F | HLS | 671 |
| Haitian Aviation Lines | WD | HBC | 851 |
| Hamburg Airlines | HX | HAS | 099 |
| Hamburg International | 4R | HHI | |
| Harbour Airlines | HAR | 495 | |
| Hawaiian Airlines | HA | HAL | 173 |
| Hawkins and Powers Aviation | |||
| HeavyLift Cargo Airlines | HN | HVY | |
| Heli Air Services | HLR | ||
| Helijet Airways | JB | JBA | 613 |
| Helikopterservice- Euro Air | YQ | SCO | |
| Helios Airways | ZU | HCY | 032 |
| Helisul Linhas Aereas | PE | SUL | 153 |
| Hellas Jet | T4 | HEJ | 681 |
| Hemet Valley Flying Service | |||
| Hemus Air | DU | HMS | 748 |
| Hex´Air | UD | HER | 848 |
| Highland Air | HS | HIL | 990 |
| Highland Airways | 8H | RLB | |
| HMY (Harmony) Airways | HQ | HMY | |
| Hoganair | HGA | ||
| Hokkaido Air System | NTH | ||
| Holiday Airlines | HOL | ||
| Hong Kong Airlines Ltd | N8 | CRK | 851 |
| Hong Kong Express Airways | UO | HKE | |
| Horizon Airlines | QX | QXE | 481 |
| Horizon Airlines Australia | |||
| Hungarian Ukrainian Airlines | HUK | ||
| Hydro Air Cargo | HYC |