Cancun International Airport Terminal 3 This terminal receives predominantly international flights, mostly from the United States, although it is not limited to that. The airlines operating in Terminal 3 are:Air BerlinAir CanadaAir EuropaAmerican AirlinesBritish AirwaysCondorContinental AirlinesDelta AirlinesFrontier AirlinesIberiaIberworldJetBlue AirwaysSpirit AirlinesSun Country AirlinesThomas CookThomson FlyUnited AirlinesUSA 3000WestJet