Enter city, state, or port code.
| Name / Location | State   | Airport Code | Port Code | Zip Code |
| North Bend | Oregon | OTH | 2903 | |
| Oakland | California | OAK | 2811 | |
| Oklahoma City | Oklahoma | OKC | 5504 | |
| Oleum | California | 2829 | ||
| Olympia | Washington | OLM | 3026 | |
| Omaha | Nebraska | OMA | 3903 | |
| Ontario International Airport | California | ONT | 2721 | |
| Orlando | Florida | MCO | 1808 | |
| Otay Mesa Station | California | 2506 | ||
| Owensboro | Kentucky | OWB | 4116 | |
| Oxnard / Ventura | California | OXR | 2712 | |
| Panama City | Florida | PFN | 1818 | |
| Pearl Harbor | Hawaii | HNL | 3201 | |
| Pelican | Alaska | 3124 | ||
| Pensacola | Florida | PNS | 1819 | |
| Peoria | Illinois | PIA | 3902 | |
| Petersburg | Alaska | PSG | 3112 | |
| Philadelphia | Pennsylvania | PHL | 1101 | |
| Philadelphia International Airport | Pennsylvania | PHL | 1108 | |
| Phoenix | Arizona | PHX | 2605 | |
| Pigeon Point | Delaware | 1103 | ||
| Pittsburg | California | 2828 | ||
| Pittsburgh | Pennsylvania | PIT | 1104 | |
| Plymouth | Massachusetts | PYM | 0406 | |
| Pontiac Airport Detroit | Michigan | DTW | 3881 | |
