| Airline |
Image |
IATA |
ICAO |
Callsign |
Commenced operations |
Ceased operations |
Notes |
| Air Architects | | | | | 1968 | 1968 | |
| Air Laos | | | | | 1974 | 1974 | Absorbed into Royal Air Lao |
| Air Laos Transport Aériens | | | | | 1952 | 1961 | Rebranded as Royal Air Lao |
| Air Vientiane | | | | | 1971 | 1974 | |
| Angkor International Airlines | | | | | 1975 | 1975 | |
| Boun Oum Airways | | | | | 1964 | 1967 | Integrated into Continental Air Services, Inc |
| Civil Aviation Company | | | | | 1976 | 1979 | Rebranded as Lao Aviation |
| Euro Asia Aviation | | | EUL | | 2002 | 2003 | |
| Hang Meas Airlines | | | | | 1974 | 1975 | |
| Khemara Air Transport | | | | | | | |
| Lao Air | | | | | 2002 | 2014 | Rebranded as Lao Skyway |
| Lao Air Lines | | WL | | | 1967 | 1973 | Merged with Royal Air Lao to form the Civil Aviation Company |
| Lao Aviation |  | QV | LAO | | 1976 | 2003 | Rebranded as Lao Airlines |
| Lao Capricorn Air | | | LKA | | 2008 | 2010 | Rebranded as Phongsavanh Airlines |
| Lao Central Airlines |  | LF | LKA | NAKLAO | 2010 | 2014 | |
| Phongsavanh Airlines | | | | | 2010 | 2012 | Rebranded as Lao Central Airlines |
| Royal Air Lao |  | | | | 1962 | 1976 | Merged with Lao Air Lines to form the Civil Aviation Company |
| Samaki Peanich Airlines | | | | | 1972 | 1975 | |
| Sorya Airlines | | | | | 1974 | 1975 | |
| Xieng Khouang Air Transport | | | | | 1967 | 1975 | |