Airlines — A
- KVRAlliance Avia
- RWBAlliance Express Rwanda
- AJKAllied Air
- ALFAllied Command Europe (Mobile Force)
- LMUAlMasria Universal Airlines
- LMTAlmaty Aviation
- VERAlmaver
- HPOAlmiron Aviation
- LUCAlninati Aeronautics
- AAHAloha Airlines
- LOKAlok Air
- APHAlpha Aviation
- AJWAlpha Jet International
- ELGAlpi Eagles
- AIHAlpine Air Chile
- AIPAlpine Air Express
- LPCAlpine Aviation
- ALPAlpliner AG
- DRUAlrosa Mirny Air Enterprise
- LROAlrosa-Avia
- LSRAlsair
- SQRAlsaqer Aviation
- ALZAlta Flights (Charters) Ltd.
- AGHAltagna
- ALQAltair Aviation (1986)
- GTCAltin Havayolu Tasimaciligi Turizm Ve Ticaret
- AXSAltus Airlines
- AQOAluminum Company Of America
- ALYAlyeska Air Service
- AGTAmadeus Global Travel Distribution
- OBKAmako Airlines
- MLFAmal Airlines
- APFAmapola Flyg AB
- AZNAmaszonas
- GNTAmber Air
- JEEAmbjek Air Services
- MCYAmbulance Air Africa
- AMVAMC Airlines
- VAMAmeravia
- AMKAmerer Air
- AWEAmerica West Airlines
- AALAmerican Airlines
- LKPAmerican Aviation
- EGFAmerican Eagle Airlines
- AFBAmerican Falcon
- XFSAmerican Flight Service Systems
- FYSAmerican Flyers
- SCMAmerican Jet International
- AMFAmeriflight
- AJTAmerijet International
- AJIAmeristar Jet Charter
- XPEAmira Air
- AMZAmiya Airline
- MMPAMP Incorporated
- XAMAMR Services Corporation
- XMGAMS Group
- AANAmsterdam Airlines
- AJVANA & JP Express
- ANUAndalus Lineas Aereas
- ADXAnderson Aviation
- ANSAndes Lineas Aereas
- AGUAngara Airlines
- NGEAngel Airlines
- NGFAngel Flight America
- VAVAngkor Air
- AOLAngkor Airlines
- AKWAngkor Airways
- ANCAnglo Cargo
- NGVAngoavia
- AGOAngola Air Charter
- NGCAngoservice
- AAZAngus Aviation
- AKFAnikay Air Company
- RZZAnoka Air Charter
- AAAAnsett Australia
- TIRAntair
- NAUAntanik-Air
- ANMAntares Airtransport
- SUNAntillana De Navegacion Aerea
- DJAAntinea Airlines
- ADBAntonov Airlines
- ABVAntrak Air
- AOMAOM French Airlines
- APYAPA Internacional
- IWAApache Air
- LYTApatas Air
- APXApex Air Cargo
- POYApoyo Aereo
- APLAppalachian Flying Service
- ABOAPSA Colombia
- CNHAquila Air
- AQLAquila Air Ltd.
- AGCArab Agricultural Aviation Company
- AWSArab Wings
- KOYAraiavia
- IRWAram Airline
- ARVAravco Ltd.
- AKCArca Aerovias Colombianas Ltda.
- DHMArcher Aviation
- AKRArctic Air