- Cardiff Airport is an international airport located in Rhoose, Vale of Glamorgan, Wales. It is the busiest airport in Wales and serves as a gateway for travelers from Cardiff and the surrounding areas. The airport offers flights to various domestic and international destinations, including popular holiday spots in Europe and other parts of the world. It is operated by Cardiff Airport Ltd. and is approximately 12 miles west of Cardiff city center. The airport has a range of facilities and services for passengers, including shops, restaurants, car rental facilities, and parking options.