| 1 | RYR | Ryanair Ltd. | IATA: IW, Callsign: Ryanair, IATA designator changed to FR | IRL | AVCODES |
| 2 | RYR | Ryanair Ltd. | IATA: FR, Callsign: Ryanair, IATA Prefix: 224, | IRL | AVCODES |
| 3 | RYR | Ryanair | IATA: FR | | ICAO1 |
| 4 | RYRD | ROY, R D TRANSPORT | | | SCAC3 |
| 5 | RYRG | ROY, ROGER | | | SCAC4 |
| 6 | RYRL | RYDER LEASING | | | SCAC3 |
| 7 | RYRN | RYERSON CONCRETE INC | | | SCAC3 |
| 8 | RYRP | ROYAL ROADS EXPRESS | | | SCAC4 |