From The Airport Wiki

Cardiff International Airport (Welsh: Maes Awyr Rhyngwladol Caerdydd) (IATA: CWL, ICAO: EGFF) is an major British airport located in the village of Rhoose, Vale of Glamorgan, approximately 12 miles (19 km) south-west of the Welsh capital, Cardiff, serving all of South and Mid Wales.

As the only airport in Wales offering international scheduled flights (the other offering scheduled flights being Anglesey Airport), Cardiff Airport is served by scheduled, low-fare, business and charter carriers, and also supports corporate and general aviation.