Redigerer IATA-flyselskapskode (avsnitt)

===R===
<!-- when adding a IATA code to the list, please make sure that under the disambiguation page corresponding to the IATA code, the airline is listed! -->
* R0 – [[Royal Airlines]] (Pakistan)
* R1 – [[Sirin (airline)|Sirin]]
* R2 – [[Orenburg Airlines]] (Russland)
* R3 – [[Air Yakutia]] (Russland)
* R4 – [[STC Russia]] (Russland) ''Fusjonert med FV''
* R5 – [[Jordan Aviation]]
* R5 – [[Malta Air Charter]]
* R6 – [[Air Srpska]] (Bosnia og Hercegovina) ''ikke lenger operativt''
* R7 – [[Aserca Airlines]] (Venezuela)
* R8 – [[Kyrgyzstan Airlines]]
* R9 – [[Camai Air]] (USA)
* RA – [[Royal Nepal Airlines]]
* RB – [[Syrian Arab Airlines]]
* RC – [[Atlantic Airways]] (Færøyene)
* RD – [[Ryan International Airlines]] (USA)
* RE – [[Aer Arann]] (Irland)
* RF – [[Florida West International Airways]] (USA)
* RG – [[Varig]] (Brasil)
* RH – [[Republic Express Airlines]] (Indonesia)
* RI – [[Mandala Airlines]]
* RJ – [[Royal Jordanian]]
* RK – [[Royal Khmer Airlines]] (Kambodsja)
* RL – [[Royal Phnom Penh Airways]] (Kambodsja)
* RN – [[Air Horizons]] (Frankrike) ''ikke lenger operativt''
* RO – [[TAROM]] (Romania)
* RP – [[Chautauqua Airlines]] (USA)
* RQ – [[Kam Air]] (Afghanistan)
* RR – [[Royal Air Force]] (Storbritannia)
* RS – [[Oman Royal Flight]]
* RV – [[Caspian Airlines]] (Russland)
* RV – [[Reeve Aleutian Airways]] (USA) ''ikke lenger operativt''
* RW – [[Republic Airlines]] (USA)
* RX – [[Aviaexpress]] (Ungarn)
* RZ – [[Euro Exec Express]] (Sverige)