| PIB | KPIB | Hattiesburg Laurel Regional Airport | - | |
|
| HVR | KHVR | Havre City County Airport | Havre | |
|
| HYS | KHYS | Hays Regional Airport | Hays | |
|
| FAR | KFAR | Hector International Airport | Fargo | |
|
| HLN | KHLN | Helena Regional Airport | Helena | |
|
| FSI | KFSI | Henry Post Army Air Field (Fort Sill) | Fort Sill | |
|
| HKY | KHKY | Hickory Regional Airport | Hickory | |
|
| HIF | KHIF | Hill Air Force Base | - | |
|
| ITO | PHTO | Hilo International Airport | Hilo | |
|
| HBR | KHBR | Hobart Regional Airport | Hobart | |
|
| HCR | PAHC | Holy Cross Airport | Holy Cross | |
|
| HOM | PAHO | Homer Airport | Homer | |
|
| HST | KHST | Homestead ARB Airport | Homestead | |
|
| HLR | KHLR | Hood Army Air Field | - | |
|
| HPB | PAHP | Hooper Bay Airport | Hooper Bay | |
|
| CMX | KCMX | Houghton County Memorial Airport | Hancock | |
|
| HUL | KHUL | Houlton International Airport | Houlton | |
|
| SVN | KSVN | Hunter Army Air Field | - | |
|
| HTV | KUTS | Huntsville Regional Airport | Huntsville | |
|
| HON | KHON | Huron Regional Airport | Huron | |
|
| HSL | PAHL | Huslia Airport | Huslia | |
|
| HUT | KHUT | Hutchinson Municipal Airport | Hutchinson | |
|
| IDA | KIDA | Idaho Falls Regional Airport | Idaho Falls | |
|
| BDR | KBDR | Igor I Sikorsky Memorial Airport | Bridgeport | |
|
| ILI | PAIL | Iliamna Airport | Iliamna | |
|
| IPL | KIPL | Imperial County Airport | Imperial | |
|
| UTO | PAIM | Indian Mountain LRRS Airport | Utopia Creek | |
|
| ITH | KITH | Ithaca Tompkins Regional Airport | Ithaca | |
|
| CEC | KCEC | Jack Mc Namara Field Airport | Crescent City | |
|
| HHR | KHHR | Jack Northrop Field Hawthorne Municipal Airport | Hawthorne | |
|
| JXN | KJXN | Jackson County Reynolds Field | Jackson | |
|
| JAC | KJAC | Jackson Hole Airport | Jackson | |
|
| CRG | KCRG | Jacksonville Executive at Craig Airport | - | |
|
| TRM | KTRM | Jacqueline Cochran Regional Airport | Thermal | |
|
| JMS | KJMS | Jamestown Regional Airport | Jamestown | |
|
| CUB | KCUB | Jim Hamilton L.B. Owens Airport | - | |
|
| FSD | KFSD | Joe Foss Field Airport | Sioux Falls | |
|
| JST | KJST | John Murtha Johnstown Cambria County Airport | Johnstown | |
|
| JBR | KJBR | Jonesboro Municipal Airport | Jonesboro | |
|
| TWF | KTWF | Joslin Field Magic Valley Regional Airport | Twin Falls | |
|
| JNU | PAJN | Juneau International Airport | Juneau | |
|
| OGG | PHOG | Kahului Airport | Kahului | |
|
| AZO | KAZO | Kalamazoo Battle Creek International Airport | Kalamazoo | |
|
| NGF | PHNG | Kaneohe Bay MCAS (Marion E. Carl Field) Airport | - | |
|
| JHM | PHJH | Kapalua Airport | Kapalua | |
|
| OFK | KOFK | Karl Stefan Memorial Airport | Norfolk | |
|
| BIX | KBIX | Keesler Air Force Base | Biloxi | |
|
| ENA | PAEN | Kenai Municipal Airport | Kenai | |
|
| TMB | KTMB | Kendall-Tamiami Executive Airport | - | |
|
| ENW | KENW | Kenosha Regional Airport | Kenosha | |
|