Don Mueang International Airport (DMK), is an airport in Bangkok, Thailand. Commercial service to Don Mueang began in 1924 and closed in 2006 following the opening of Bangkok's new Suvarnabhumi Airport (BKK). Before the opening of Suvarnabhumi, the airport used the airport code BKK and the name was spelled Don Muang. After Suvarnabhumi opened for commercial flights, the spelling was changed and as Don Mueang (opened again on 24 March 2007) it now uses the airport code DMK.