| PPV | - | Port Protection Sea Plane Base | Port Protection | |
| KPR | - | Port Williams Sea Plane Base | Port Williams | |
| VPZ | KVPZ | Porter County Regional Airport | Valparaiso | |
| HIO | KHIO | Portland Hillsboro Airport | Hillsboro | |
| - | KPTD | Potsdam Municipal | Potsdam | |
| PQI | KPQI | Presque Isle Municipal Airport | Presque Isle | |
| LYH | KLYH | Preston-Glenn Field | Lynchburg | |
| PCT | - | Princeton Airport | Princeton | |
| PPC | PAPR | Prospect Creek Airport | Prospect Creek | |
| PVC | KPVC | Provincetown Airport | Provincetown | |
| PVU | KPVU | Provo Airport | Provo | |
| SCC | PASC | Prudhoe Bay/Deadhorse Airport | Prudhoe Bay/Deadhorse | |
| PUB | KPUB | Pueblo Memorial Airport | Pueblo | |
| PUW | KPUW | Pullman-Moscow Regional Airport | Pullman | |
| LAF | KLAF | Purdue University Airport | Lafayette | |
| UIN | KUIN | Quincy Municipal Airport | Quincy | |
| - | KOQU | Quonset State | North Kingstown | |
| NCO | - | Quonset State Airport | North Kingstown | |
| BKW | KBKW | Raleigh County Memorial Airport | Beckley | |
| - | KTTA | Raleigh Exec Jetport at Sanford-Lee County | Sanford | |
| TAL | PATA | Ralph M Calhoun Airport | Tanana | |
| PWY | KPNA | Ralph Wenz Field | Pinedale | |
| - | KRNM | Ramona Airport | Ramona | |
| RMP | - | Rampart Airport | Rampart | |
| RND | KRND | Randolph Air Force Base | San Antonio | |
| EKN | KEKN | Randolph County Airport | Elkins | |
| RNG | - | Rangely Airport | Rangely | |
| RAP | KRAP | Rapid City Regional Airport | Rapid City | |
| - | - | Ravalli Co | Hamilton | |
| RWL | KRWL | Rawlins Municipal Airport (Harvey Field) | Rawlins | |
| RDG | KRDG | Reading Regional Airport | Reading | |
| RBL | KRBL | Red Bluff Municipal Airport | Red Bluff | |
| RDV | - | Red Devil Airport | Red Devil | |
| RDB | - | Red Dog Airport | Red Dog | |
| RDD | KRDD | Redding Municipal Airport | Redding | |
| RHV | KRHV | Reid-Hillview Airport | San Jose | |
| RNT | KRNT | Renton Municipal Airport | Renton | |
| FRG | KFRG | Republic Airport | Farmingdale | |
| RXE | KRXE | Rexburg-Madison County Airport | Rexburg | |
| RIE | KRPD | Rice Lake Regional Airport-Carl's Field | Rice Lake | |
| RMG | KRMG | Richard B Russell Airport | Rome | |
| RVS | KRVS | Richard Lloyd Jones Jr Airport | Tulsa | |
| MSS | KMSS | Richards Field | Massena | |
| RLD | KRLD | Richland Airport | Richland | |
| SDY | KSDY | Richland Municipal Airport | Sidney | |
| RIW | KRIW | Riverton Airport | Riverton | |
| ORV | PFNO | Robert (Bob) Curtis Memorial Airport | Noorvik | |
| GRK | KGRK | Robert Gray Army Airfield | Killeen | |
| MJX | KMJX | Robert J. Miller Air Park | Toms River | |
| WRB | KWRB | Robins Air Force Base | Macon | |