| Abbreviation | Definition |
|---|---|
| HCMU | Erigavo, Somalia |
| HCMV | Burao, Somalia |
| HCO | Hallock Municipal Airport, Hallock, Minnesota USA |
| HCQ | Halls Creek, Western Australia, Australia |
| HCR | Holy Cross, Alaska USA |
| HCW | Cheraw, South Carolina USA |
| HDA | Hidden Falls, Alaska USA |
| HDB | Heidelberg, Germany |
| HDD | Hyderabad, Pakistan |
| HDE | Holdrege, Nebraska USA |
| HDM | Hamadan, Iran |
| HDN | Hayden Airport, Steamboat Springs, Colorado USA |
| HDO | Hondo Municipal Airport, Hondo, Texas USA |
| HDS | Hoedspruit, South Africa |
| HDY | Hat Yai, Thailand |
| HEAR | El Arish Airport, Egypt |
| HEAT | Assiut, Egypt |
| HEAX | Alexandria, Egypt |
| HEBL | Abu Simbel, Egypt |
| HECA | Cairo International Airport, Egypt |