| PAC | PO | 403 | Polar Air Cargo |
| PAF | Panaf Airways | ||
| PAG | UW | 711 | Perimeter Airlines (Inland) Ltd |
| PAL | PR | 079 | Philippine Airlines |
| PAO | PH | 162 | Polynesian Airlines |
| PAR | Spair Air Transport | ||
| PAS | 6D | 019 | Pelita Air Service |
| PAW | Polonia Airways | ||
| PAY | A8 | ARPA Aerolineas Paraguayas | |
| PBN | DJ | Pacific Blue | |
| PBU | PB | 919 | Air Burundi |
| PCE | Pace Airlines | ||
| PCG | Aeropostal de Mexico | ||
| PCM | West Air | ||
| PCO | 8P | 905 | Pacific Coastal Airlines Limited |
| TH | 259 | LAR Transregional | |
| PDT | Piedmont Airlines | ||
| PEC | Pacific East Asia Cargo Airlines | ||
| PEG | Pelangi Air | ||
| PEL | PO | Aeropelican Air Services | |
| PEM | PD | 329 | Pemair |
| PEN | KS | 339 | Penair |
| PFC | P4 | 987 | Pacific International Airlines |
| PGA | NI | 685 | Portugália Airlines |
| PGP | Perm Airlines | ||
| PGT | Pegasus | ||
| PHN | Phoenix Airlines | ||
| PHU | Pannon Air Service | ||
| PHW | Ave.com | ||
| PIA | PK | 214 | Pakistan International Airlines |
| PIC | BL | 550 | Pacific Airlines |
| PIE | 8H | Air South West | |
| PIR | NR | Pamir Airways | |
| PIT | P2 | Panair | |
| PJS | PP | Jet Aviation Business Jets | |
| PKA | AST Pakistan Airways | ||
| PLB | Polus | ||
| PLI | PL | 210 | Aeroperu |
| PLK | FV | Pulkovo Airlines | |
| PLR | J3 | 325 | Northwestern Air Lease |
| PMK | 3D | 216 | Palair Macedonia |
| PMT | U4 | PMTair | |
| PMW | I7 | Paramount Airways | |
| PNF | PQ | Panafrican Airways | |
| PNH | Panh Company AO | ||
| PNR | Pan Air Lineas Aereas | ||
| PNV | 6Z | 955 | Panavia Cargo Airlines |
| PNW | PF | 400 | Palestinian Airlines |
| PNZ | Penza United Air Detachment | ||
| POT | YQ | 342 | Polet Cargo Airlines |
| PPW | RL | Royal Phnom Penh Airways | |
| PRI | WP | 347 | Aloha Islandair |
| PRL | J5 | 127 | Aviaprima Sochi Airlines |
| PRR | Partner Airlines | ||
| PSA | 9J | 321 | Pacific Island Aviation |
| PSD | TO | 540 | President Airlines |
| PSR | Express | ||
| PST | Airwork | ||
| PSW | Pskovavia | ||
| PTB | Y8 | 837 | Passaredo Transportes Aeros |
| PUA | PU | 286 | PLUNA |
| PVV | PC | 922 | Continental Airways |
| PXA | KW | 388 | Pan American World Airways |
| PXB | Phoenix Air | ||
| PXH | P9 | Pacific Express |