| 1 | RYA | Arctic Transportation Services | IATA: 7S, Callsign: Ryan Air, Name changed to Ryan Air Services, Inc. | USA | AVCODES |
| 2 | RYA | Ryan Air Services, Inc. | IATA: 7S, Callsign: Ryan Air, Name changed to Ryan Air, Inc. Name changed from Arctic Transportation Services | USA | AVCODES |
| 3 | RYA | Ryan Air, Inc. | IATA: 7S, Callsign: Ryan Air, Name changed from Ryan Services Air, Inc. Name changed from Arctic Transportation Services | USA | AVCODES |
| 4 | RYA | Ryan Air Services | | | ICAO1 |
| 5 | RYAC | RODEZ Y ASOCIADOS SC | | | SCAC4 |
| 6 | RYAD | RAYTRANS DISTRIBUTION SERVICES INC | | | SCAC4 |
| 7 | RYAG | ROYAL LOGISTICS INC | | | SCAC4 |
| 8 | RYAL | ROYAL TRANSPORT INC | | | SCAC3 |
| 9 | RYAL | ROYAL PACIFIC SHIPPING COMPANY LIMI | | | SCAC4 |
| 10 | RYAM | RYANS MESSENGER SERVICE INC | | | SCAC3 |
| 11 | RYAN | Ryan Industries | 7/2005 (not listed) | | NAKINA |
| 12 | RYAN | RYAN INDUSTRIES | | | PWRC |
| 13 | RYAN | RYAN Industries | | | RSRV |
| 14 | RYAN | RYAN'S EXPRESS, INC | | | SCAC3 |
| 15 | RYAO | RYAN TRANSFER & STORAGE CO | | | SCAC3 |
| 16 | RYAP | ROYAL TRANSPORT INC | | | SCAC3 |
| 17 | RYAP | ROY, JACQUES | | | SCAC4 |
| 18 | RYAY | ROYAL | | | SCAC4 |
