| 1 | SJN | Chartair, Inc. d/b/a Air San Juan | Callsign: San Juan, Name changed to Rugby Aviation, LLC d/b/a Air San Juan | USA | AVCODES |
| 2 | SJN | Chartair, Inc. d/b/a Air San Juan | IATA: 5W, Callsign: San Juan, Designator recalled by IATA | USA | AVCODES |
| 3 | SJN | Sajen Air, Inc. | Callsign: Sajen, | USA | AVCODES |
| 4 | SJN | Rugby Aviation, LLC d/b/a San Juan Airlines | Callsign: San Juan, Name changed from Chartair, Inc. d/b/a Air San Juan. | USA | AVCODES |
| 5 | SJN | Air San Juan | | | ICAO1 |
| 6 | SJNG | SAN JUAN NAVIGATION CORP | | | SCAC4 |
| 7 | SJNI | SUNJIN SHIPPING (U S A) INC | | | SCAC4 |
| 8 | SJNO | SJ Norge AS | City: In June 2020 SJ (from Sweden) took over all operations north of Oslo from Vy (former NSB). This involves the services on Oslo-Trondheim, Trondheim-Bodo, Dombas-Andalsnes, Hamar-Roros-Trondheim, Trondheim-Storlien(-Sundsvall) and local trains around Trondheim and Bodo. The concession will run for 8 years, with options for another 2 years. | N | TRAFFIC |
| 9 | SJNR | STEPHENSON, JOHN RICHARD | | | SCAC4 |
| 10 | SJNS | SAN JUAN NAVIGATION (SINGAPORE) PTE | | | SCAC4 |
| 11 | SJNX | Mobay Corp. | 1/1994-7/2005 (not listed) | | NAKINA |
| 12 | SJNX | Mobay Corp. | 1/94-7/2000 | | NRHS |
| 13 | SJNX | MOBAY CORPORATION | | | PWRC |
| 14 | SJNX | Mobay Corporation | | | RSRV |
| 15 | SJNX | MOBAY CORPORATION | | | SCAC4 |
