The airline transferred all operations from Don Mueang International Airport to Suvarnabhumi Airport effective from 1 October , 2012 . With effect from 1 October 2012 , the airline transferred all operations from Don Mueang International Airport to Suvarnabhumi Airport . Effective October 1 , 2012 , the airline has moved all operations from Suvarnabhumi Airport to Don Mueang International Airport .