Redigerer IATA-flyselskapskode (avsnitt)

===T===
<!-- 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! -->
* T2 – [[Thai Air Cargo]]
* T3 – [[Eastern Airways]] (Storbritannia)
* T4 – [[Hellas Jet]] (Greece) ''ikke lenger operativt''
* T5 – [[Turkmenistan Airlines]]
* T6 – [[Tavrey Airlines]] (Ukraina)
* T7 – [[Twin Jet]] (Frankrike)
* T8 – [[Transportes Aereos Neuquen]] (Argentina)
* T9 – [[TransMeridian Airlines]] (USA) ''ikke lenger operativt''
* TA – [[Grupo TACA|TACA]] (El Salvador)
* TC – [[Air Tanzania]]
* TD – [[Atlantis European Airways]] (Armenia)
* TD – [[Tulip Air]] (Nederland)
* TE – [[Lithuanian Airlines]]
* TF – [[Malmö Aviation]] (Sverige)
* TG – [[Thai Airways International]]
* TH – [[BA Connect]] (Storbritannia)
* TH – [[Transmile Air Services]] (Malaysia)
* TI – [[Tol Air]] (Puerto Rico)
* TK – [[Turkish Airlines]] (Tyrkia)
* TL – [[Airnorth]] (Australia)
* TL – [[Trans Mediterranean Airways]] (Libanon)
* TM – [[LAM - Linhas Aéreas de Moçambique]]
* TN – [[Air Tahiti Nui]]
* TO – [[President Airlines]] (Kambodsja)
* TP – [[TAP Portugal]] (Portugal)
* TQ – [[Tandem Aero]] (Moldova)
* TR – [[Transbrasil]] ''ikke lenger operativt''
* TR – [[Tiger Airways]] (Singapore)
* TS – [[Air Transat]] (Canada)
* TT – [[Air Lithuania]] ''ikke lenger operativt''
* TU – [[Tunisair]] (Tunis)
* TW – [[Trans World Airlines]] ''ikke lenger operativt''
* TV – [[Virgin Express]] (Belgium)
* TX – [[Air Caraïbes]] (Frankrike)
* TY – [[Air Calédonie]] (Frankrike)
* TY – [[Iberworld]] (Spania)
* TZ – [[ATA Airlines]] (USA)