Port name - airport
| Type | Name | Country |
| Airport | OGDENSBURG (OGS) | USA |
| Airport | PORTSMOUTH (PSM) | USA |
| Airport | PORTLAND (PDX) | USA |
| Airport | OKLAHOMA CITY (OKC) | USA |
| Airport | PORTLAND (PWM) | USA |
| Airport | PORT ANGELES (CLM) | USA |
| Airport | OMAHA (OMA) | USA |
| Airport | ONTARIO (ONT) | USA |
| Airport | PONCE (PSE) | USA |
| Airport | PONCA CITY (PNC) | USA |
| Airport | ORLANDO (MCO) | USA |
| Airport | POINT HOPE (PHO) | USA |
| Airport | OSHKOSH (OSH) | USA |
| Airport | OTTUMWA (OTM) | USA |
| Airport | POCATELLO (PIH) | USA |
| Airport | OWENSBORO (OWB) | USA |
| Airport | PLATTSBURGH (PLB) | USA |
| Airport | OXNARD / VENTURA (OXR) | USA |
| Airport | PADUCAH (PAH) | USA |
| Airport | PITTSBURGH (PIT) | USA |