| EKA | KEKA | Murray Field | Eureka | |
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| MYR | KMYR | Myrtle Beach International Airport | Myrtle Beach | |
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| ACK | KACK | Nantucket Memorial Airport | Nantucket | |
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| APF | KAPF | Naples Municipal Airport | Naples | |
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| NQX | KNQX | Naval Air Station Key West/Boca Chica Field | - | |
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| NRB | KNRB | Naval Station Mayport (Admiral David L. Mcdonald Field) | Mayport | |
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| EED | KEED | Needles Airport | Needles | |
|
| LSV | KLSV | Nellis Air Force Base | - | |
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| ENN | PANN | Nenana Municipal Airport | Nenana | |
|
| EWB | KEWB | New Bedford Regional Airport | New Bedford | |
|
| ILG | KILG | New Castle Airport | Wilmington | |
|
| NBG | KNBG | New Orleans NAS JRB/Alvin Callender Field | - | |
|
| IAG | KIAG | Niagara Falls International Airport | Niagara Falls | |
|
| WTK | PAWN | Noatak Airport | Noatak | |
|
| OME | PAOM | Nome Airport | Nome | |
|
| CKB | KCKB | North Central West Virginia Airport | Clarksburg | |
|
| NZY | KNZY | North Island Naval Air Station-Halsey Field | - | |
|
| VGT | KVGT | North Las Vegas Airport | - | |
|
| LBF | KLBF | North Platte Regional Airport Lee Bird Field | North Platte | |
|
| UST | KSGJ | Northeast Florida Regional Airport | Saint Augustine | |
|
| CCY | KCCY | Northeast Iowa Regional Airport | Charles City | |
|
| PNE | KPNE | Northeast Philadelphia Airport | - | |
|
| PQI | KPQI | Northern Maine Regional Airport at Presque Isle | Presque Isle | |
|
| ORT | PAOR | Northway Airport | Northway | |
|
| MSL | KMSL | Northwest Alabama Regional Airport | Muscle Shoals | |
|
| XNA | KXNA | Northwest Arkansas Regional Airport | - | |
|
| ECP | KECP | Northwest Florida Beaches International Airport | - | |
|
| OWD | KOWD | Norwood Memorial Airport | Norwood | |
|
| NUI | PAQT | Nuiqsut Airport | Nuiqsut | |
|
| PTK | KPTK | Oakland County International Airport | Pontiac | |
|
| OFF | KOFF | Offutt Air Force Base | - | |
|
| OGD | KOGD | Ogden Hinckley Airport | Ogden | |
|
| OSU | KOSU | Ohio State University Airport | - | |
|
| OLM | KOLM | Olympia Regional Airport | Olympia | |
|
| OGB | KOGB | Orangeburg Municipal Airport | Orangeburg | |
|
| OEL | UUOR | Oryol Yuzhny Airport | - | |
|
| OTM | KOTM | Ottumwa Regional Airport | Ottumwa | |
|
| OWB | KOWB | Owensboro Daviess County Airport | Owensboro | |
|
| OXR | KOXR | Oxnard Airport | Ventura | |
|
| WMH | KBPK | Ozark Regional Airport | Mountain Home | |
|
| FMY | KFMY | Page Field | Fort Myers | |
|
| PGA | KPGA | Page Municipal Airport | Page | |
|
| PSP | KPSP | Palm Springs International Airport | Palm Springs | |
|
| PMD | KPMD | Palmdale Regional/USAF Plant 42 Airport | Palmdale | |
|
| PAQ | PAAQ | Palmer Municipal Airport | Palmer | |
|
| EAT | KEAT | Pangborn Memorial Airport | Wenatchee | |
|
| PRB | KPRB | Paso Robles Municipal Airport | Paso Robles | |
|
| COF | KCOF | Patrick Air Force Base | - | |
|
| PLN | KPLN | Pellston Regional Airport of Emmet County Airport | Pellston | |
|
| NPA | KNPA | Pensacola Naval Air Station/Forrest Sherman Field | - | |
|