Enter city, state, or port code.
| Name / Location | State   | Airport Code | Port Code | Zip Code |
| Minneapolis / St Paul | Minnesota | MSP | 3501 | |
| Minot | North Dakota | MOT | 3434 | |
| Missoula | MT | MSO | ||
| Mobile | Alabama | MOB | 1901 | |
| Moline | Illinois | MLI | 3908 | |
| Monterey | California | MRY | 2805 | |
| Morgan City | Louisiana | 2001 | ||
| Morristown Airport Newark | New Jersey | MMU | 4681 | |
| Morro | California | 2719 | ||
| Muskegon | Michigan | MKG | 3815 | |
| Naco | Arizona | 2603 | ||
| Nashville | Tennessee | BNA | 2007 | |
| Nawiliwili-Port Allen | Hawaii | 3204 | ||
| New Bedford | Massachusetts | BED | 0405 | |
| New Haven | Connecticut | HVN | 0412 | |
| New London | Connecticut | GON | 0413 | |
| New Orleans | Louisiana | MSY | 2002 | |
| New York Delta Cargo | New York | JFK | 4701 | |
| New York JFK Intl Airport | New York | JFK | 1012 | |
| Newark | New Jersey | EWR | 4601 | |
| Newport Bay | California | 2709 | ||
| Newport News / York River | Virginia | 1402 | ||
| Nippon Courier Hub Chicago | Illinois | ORD | 3991 | |
| Nogales | Arizona | 2604 | ||
| Norfolk / Portsmouth | Virginia | ORF | 1401 | |
