# Liste des compagnies clientes de l'Airbus A340

Voici la liste des compagnies de l'Airbus A340; Au 10 juillet 2017, on comptait 175 A340 en service sur les 377 construit. Outre ces compagnies, plusieurs forces aériennes en disposent, dont deux pour l'armée de l'air française de 2006 a décembre 2020:
| Compagnie | A340-200 | A340-200 | A340-200 | A340-300 | A340-300 | A340-300 | A340-500 | A340-500 | A340-500 | A340-600 | A340-600 | A340-600 | Total | Total | Total |
| Compagnie | Commandes | Livraisons | Service | Commandes | Livraisons | Service | Commandes | Livraisons | Service | Commandes | Livraisons | Service | Commandes | Livraisons | Service |
| Airbus Executive & Private Jets | 6 | 6 | 9 | 1 | 1 | 3 | 7 | 5 | 4 | 2 | 2 | 2 | 16 | 14 | 18 |
| Aerolineas Argentías | | | | | | 7 | | | | | | | | | 7 |
| Afjwa Aviation | | | 1 | | | | | | | | | | | | |
| Air Canada | | | | 8 | 8 | | 2 | 2 | | 3 | | | 13 | 10 | |
| Air Belgium | | | | | | 2 | | | | | | | | | 2 |
| Air China | | | | 3 | 3 | | | | | | | | 3 | 3 | |
| Air Comet | | | | | | | | | | | | | | | |
| Air France | | | | 14 | 14 | 10 | | | | | | | 14 | 14 | 10 |
| Air Jamaica | | | | | | | | | | | | | | | |
| Air Leisure | | | | | | 1 | | | | | | | | | 1 |
| Air Madagascar | | | | | | 2 | | | | | | | | | 2 |
| Air Mauritius | | | | 5 | 5 | 6 | | | | | | | 5 | 5 | 6 |
| Air Namibia | | | | | | | | | | | | | | | |
| Air Tahiti Nui | | | | 4 | 4 | 5 | | | | | | | 4 | 4 | 5 |
| Austrian Airlines | | | | 4 | 4 | | | | | | | | 4 | 4 | |
| Azerbaijan Airlines | | | | | | | | | 2 | | | | | | 2 |
| Cathay Pacific | | | | 11 | 11 | 4 | | | | | | | 11 | 11 | 4 |
| China Airlines | | | | 6 | 6 | 4 | | | | | | | 6 | 6 | 4 |
| China Eastern Airlines | | | | 5 | 5 | | | | | 5 | 5 | | 10 | 10 | |
| China Southwest Airlines | | | | 3 | 3 | | | | | | | | 3 | 3 | |
| Conviasa | | | | | | | | | | | | | | | |
| Egyptair | 3 | 3 | | | | | | | | | | | 3 | 3 | |
| Emirates Airlines | | | | | | | 10 | 10 | | | | | 10 | 10 | |
| Etihad Airways | | | | | | | 4 | 4 | 1 | 8 | 3 | 7 | 12 | 7 | 8 |
| Finnair | | | | 4 | 2 | 1 | | | | | | | 4 | 2 | 1 |
| Flightlease | | | | 2 | 2 | | | | | | | | 2 | 2 | |
| Gulf Air | | | | 6 | 6 | | | | | | | | 6 | 6 | |
| Garuda Indonesia | | | | | 1 | | | | | | | | | | |
| Virgin Atlantic Airways | | | | 7 | 7 | | | | | 20 | 14 | 8 | 27 | 21 | 8 |
| Iberia | | | | 18 | 18 | | | | | 14 | 11 | 17 | 32 | 29 | 17 |
| ILFC | | | | 16 | 16 | | | | | 13 | 13 | | 29 | 29 | |
| Iran Aseman Airlines | | | | | | 1 | | | | | | | | | 1 |
| Kingfisher Airlines | | | | | | | 10 | | | | | | 10 | | |
| Kuwait Airways | | | | 4 | 4 | 4 | | | | | | | 4 | 4 | 4 |
| LAN Airlines | | | | 4 | 4 | | | | | | | | 4 | 4 | |
| Lufthansa | | | | 35 | 35 | 18 | | | | 24 | 24 | 21 | 59 | 53 | 39 |
| Luftwaffe | | | | 2 | | | | | | | | | 2 | | |
| Mahan Air | | | | | | 4 | | | | | | 7 | | | 11 |
| Olympic Airlines | | | | 4 | 4 | | | | | | | | 4 | 4 | |
| Philippine Airlines | | | | 8 | 8 | 6 | | | | | | | 8 | 8 | 6 |
| Qatar Airways | | | | | | | | | | 4 | 4 | 4 | 4 | 4 | 4 |
| Royal Jordanian | | | | | | | | | | | | | | | |
| SAS | | | | 8 | 8 | 8 | | | | | | | 8 | 8 | 8 |
| Singapore Airlines | | | | 17 | 17 | | 5 | 5 | | | | | 22 | 22 | |
| South African Airways | | | | 6 | 6 | 8 | | | | 9 | 9 | 9 | 12 | 12 | 17 |
| SriLankan Airlines | | | | 3 | 3 | | | | | | | | 3 | 3 | |
| Swiss International Air Lines | | | | 9 | 9 | 11 | | | | | | | 9 | 9 | 11 |
| TAM Linhas Aéreas | | | | | | | | | 2 | | | | | | 2 |
| TAP Air Portugal | | | | 4 | 4 | 4 | | | | | | | 4 | 4 | 4 |
| Thai Airways International | | | | | | | 4 | 4 | | 6 | 5 | | 10 | 9 | |
| Turkish Airlines | | | | 7 | 7 | 4 | | | | | | | 7 | 7 | 4 |
| Air France (UTA) | | | | 7 | 7 | | | | | | | | 7 | 7 | |
| Total | 3 | 3 | 10 | 243 | 240 | 115 | 38 | 26 | 10 | 105 | 80 | 75 | 389 | 349 | 209 |
* A340-313X d'Air France
* A340-300 d'Air Mauritius
* A340-313X de Cathay Pacific
* A340-642 de China Eastern Airlines
* A340-642X d'Etihad Airways
* Sleeping Beauty, A340-600 de Virgin Atlantic
* A340-642 d'Iberia
* A340-642 de la Lufthansa
* A340-642 de South African Airways
* A340-541 de Thai Airways International