Airlines — R
- GRNRio Grande Air
- RSLRio Sul Servi
- RVMRiver Ministries Air Charter
- RGPRiver State Government of Nigeria
- UNRRivne Universal Avia
- RDLRoadair Lines
- RHARobin Hood Aviation
- RBTRobinton Aero
- ROXRoblex Aviation
- RKWRockwell Collins Avionics
- ROCRocky Mountain Airlines
- RMARocky Mountain Airways
- LIFRocky Mountain Holdings
- RDZRodze Air
- FADRog-Air
- RRZRollright Aviation
- RRLRolls-Royce Limited
- BTURolls-Royce plc
- ROFRomanian Air Force
- RMVRomavia
- RNSRonso
- RORRoraima Airways
- RNBRosneft-Baltika
- NRGRoss Aviation
- RFSRossair
- ROSRossair Europe
- SDMRossiya-Russian Airlines
- RALRoswell Airlines
- RJDRotana Jet
- RTRRotatur
- RKTRotormotion
- JCRRotterdam Jet Center
- ROVRover Airways International
- VOSRovos Air
- RACRoyal Air Cambodge
- RCGRoyal Air Cargo
- RRRRoyal Air Force
- MJNRoyal Air Force of Oman
- RAXRoyal Air Freight
- RAMRoyal Air Maroc
- RPKRoyal Airlines
- RAWRoyal Airways
- RLMRoyal American Airways
- RYLRoyal Aruban Airline
- ASYRoyal Australian Air Force
- RXPRoyal Aviation Express
- RYBRoyal Bahrain Airlines
- ROBROYAL BRITAIN
- RBARoyal Brunei Airlines
- KDRRoyal Daisy Airlines
- RFJRoyal Falcon
- DMERoyal Flight
- RGARoyal Ghanaian Airlines
- ROJRoyal Jet
- RJARoyal Jordanian
- RJZRoyal Jordanian Air Force
- RKHRoyal Khmer Airlines
- RMFRoyal Malaysian Air Force
- NVYRoyal Navy
- RNARoyal Nepal Airlines
- NRNRoyal Netherland Navy
- NAFRoyal Netherlands Air Force
- KIWRoyal New Zealand Air Force
- NOWRoyal Norwegian Air Force
- ROPRoyal Oman Police
- PPWRoyal Phnom Penh Airways
- RRARoyal Rwanda Airlines
- RSFRoyal Saudi Air Force
- RYSRoyal Sky
- RS1Royal Southern Airlines.
- RSNRoyal Swazi National Airways
- HRHRoyal Tongan Airlines
- RWERoyal West Airlines
- ARPRPA-Aviataxi Ltd.
- RSBRubystar
- RMGRumugu Air & Space Nigeria
- KLERusaero
- CGIRusair JSAC
- RUHRusich-T
- RSJRusJet
- RLURusline
- RSDRussia State Transport
- MIGRussian Aircraft Corporation-MiG
- RFFRussian Federation Air Force
- ESLRussian Sky Airlines
- KRYRusskie Krylya
- RUZRusuertol
- RUCRutas Aereas
- RNDRutland Aviation
- RUARwanda Airlines
- RWARwanda Airways
- RWDRwandair Express
- RWLRWL Luftfahrtgesellschaft
- RCTRyan Air Service
- RYARyan Air Services
- RYNRyan International Airlines
- RYRRyanair
- RYZRyazan State Air Enterprise
- RAARynes Aviation