Airlines — A
- CIRArctic Circle Air Service
- AWRArctic Wings And Rotors Ltd.
- AZEArcus-Air Logistic
- FAGArgentine Air Force
- RGOArgo
- ARYArgosy Airways
- RTOArhabaev Tourism Airlines
- ARWAria
- IRXAria Tour
- AFGAriana Afghan Airlines
- ARAArik Air
- NAKArik Niger
- AZYArizona Airways
- TMPArizona Express Airlines
- AZPArizona Pacific Airways
- TFLArkefly
- KEKArkhabay
- OAOArkhangelsk 2 Aviation Division
- AIZArkia Israel Airlines
- RMOArm-Aero
- RNVArmavia
- RMEArmenian Airlines
- RMLArmenian International Airways
- ARQArmstrong Air
- AACArmy Air Corps
- PXXAroostook Aviation
- URPARP 410 Airlines
- JTSArrendamiento de Aviones Jets
- ENDArrendoora y Transportadora Aerea
- APWArrow Air
- AROArrow Aviation Ltd.
- RWCArrow Ecuador Arrowec
- WAPArrow Panama
- ARHArrowhead Airways
- ABAArtem-Avia
- RTHArtis
- ARUAruba Airlines
- RBXArubaexel
- IRDArvand Airlines
- AOOAs
- APIASA Pesada
- XKXASECNA
- OCAAserca Airlines
- KAAAsia Aero Survey and Consulting Engineers
- AVTAsia Avia Airlines
- CIDAsia Continental Airlines
- AOTAsia Overnight Express
- MGEAsia Pacific Airlines
- AWAAsia Wings
- SPYAsian Aerospace Service
- AXFAsian Express Airlines
- RITAsian Spirit
- AWMAsian Wings Airways
- AARAsiana Airlines
- AASAskari Aviation
- XXXASL
- APQAspen Aviation
- AHFAspen Helicopters
- XJAAssistance Aeroportuaire de L'Aeroport de Paris
- SCDAssociated Aviation
- PVKAssociation of Private Pilots of Kazakhstan
- PKAAST Pakistan Airways
- DHLAstar Air Cargo
- AOIAstoria
- AEUAstraeus
- ASZAstrakhan Airlines
- ACPAstral Aviation
- ATPASTRAL Colombia - Aerotransportes Especiales Ltda.
- ASVAstravia-Bissau Air Transports Ltd.
- AAVAstro Air International
- XATAT and T Aviation Division
- AMTATA Airlines
- ABZATA Brasil
- AOFAtair Pty Ltd.
- TXUATESA Aerotaxis Ecuatorianos
- A1FAtifly
- ATUAtlant Aerobatics Ltd.
- AYZAtlant-Soyuz Airlines
- ATBAtlantair Ltd.
- MDCAtlantic Aero and Mid-Atlantic Freight
- HGHAtlantic Air Lift
- LFRAtlantic Airfreight Aviation
- GBNAtlantic Airlines
- HHAAtlantic Airlines de Honduras
- FLIAtlantic Airways
- BLRAtlantic Coast Airlines
- PRTAtlantic Coast Jet
- AGFAtlantic Gulf Airlines
- FACAtlantic Helicopters
- AIWAtlantic Island Airways
- NRSAtlantic Richfield Company
- RCUAtlantic S.L.
- CAAAtlantic Southeast Airlines
- TLBAtlantique Air Assistance
- AAOAtlantis Airlines (USA)
- LURAtlantis European Airways
- ATEAtlantis Transportation Services
- GTIAtlas Air
- ATRAtlas Airlines
- IRHAtlas Aviation Group