The best price found from United States to Wales is on September 18th, 2016, travelling with Aer Lingus. See more options, compare prices and book: search flights.
Although Cardiff has an international airport, most overseas visitors fly into London. Five international airports service the UK's capital but Heathrow is by far the biggest, serving most of the world's major airlines. It is also the closest to Wales. Other options include Manchester, which is handy for North Wales, and Bristol and Birmingham, both close to the Welsh border.
Many of the airlines directly servicing Wales are budget operators, which means you might get a good deal if you're coming from one of the handful of destinations that they fly from.
Cardiff Airport is 12 miles southwest of Cardiff, past Barry. Aside from summer-only services and charters, these are the airlines flying into Cardiff and the destinations they serve:
Departure tax is included in the price of a ticket.