| Airline | Image | IATA | ICAO | Callsign | Commenced operations | Ceased operations | Notes |
| Acvila Air | | WZ | RRM | | 1994 | 2006 | Rebranded as Jetran Air |
| Aeroline International | | | | | 1998 | 1999 | |
| Air Antares | | TF | AAY | | 1991 | 1997 | Charter airline |
| Air Romania | | | RMM | | 1999 | 2000 | Charter airline |
| Alfa Air | | | ALR | ALFA GROUP | 2008 | 2012 | Private jets |
| Angel Airlines | | 8K | KOZ | ANGEL WINGS | 2001 | 2004 | Mainline |
| Aviation Transport Services | | | ROS | | 1991 | 2001 | Charter airline |
| Banat Air Service | | BZ | BAT | | 1995 | 1997 | Charter airline |
| Blue Air | | 0B | BLA | | 2004 | 2023 | Low-cost airline |
| CFRNA | | | | | 1920 | 1925 | Rebranded as CIDNA, flag carrier |
| Chris Air | | | | | 2005 | 2005 | Low-cost airline |
| CIDNA | | | | | 1925 | 1928 | Rebranded as SNNA, flag carrier |
| DAC Air | | 6P | GCP | | 1995 | 1998 | |
| Direct Aero Services | | | DSV | | 2007 | 2012 | Charter airline |
| Eurojet Romania | | | RDP | JET-ARROW | 2004 | 2015 | Private jets |
| Fly Romania | | X5 | OTJ | FLY ROMANIA | 2014 | 2014 | Low-cost airline |
| Grivco Air | | | GIV | | 1993 | 2001 | Private jets |
| Jaro International | | JT | MDJ | | 1991 | 2001 | Charter airline |
| JeTran Air | | WZ | MDJ | JETRAN AIR | 2005 | 2011 | Rebranded as Tend Air, charter airline |
| Inter Aviation | | | | | 2011 | 2013 | Private jets |
| LAR Romanian Airlines | | QR | RLA | | 1975 | 1997 | Charter airline |
| LARES | | RO | | | 1930 | 1946 | Merged into TARS, flag carrier |
| Medallion Air | | | MDP | MEDALS | 2009 | 2013 | Merged with Tend Air to create Ten Airways, charter airline |
| MIA Airlines | | | JLA | SALLINE | 2005 | 2011 | Private jets |
| Miravia | | N3 | MRV | | 1995 | 2000 | Charter airline |
| Romavia | | WQ | RMV | AEROMAVIA | 1991 | 2014 | Went bankrupt, governmental airline |
| SARTA | | | | | 1935 | 1937 | Merged into LARES, regional airline |
| SNNA | | | | | 1928 | 1930 | Rebranded as LARES, flag carrier |
| TARS | | | | | 1945 | 1954 | Rebranded as TAROM, mainline |
| Tend Air | | WZ | MDJ | Tender Air | 2011 | 2013 | Merged with Medallion Air to create Ten Airways, charter airline |
| Ten Airways | | X5 | OTJ | | 2009 | 2015 | Charter airline |
| Valahia Air | | | VLH | | 2013 | 2014 | |
| Veg Air | | V3 | VEG | Vegair | 1998 | 2000 | Renamed/merged to Carpatair |