Your flight from Cardiff to Washington DC should take about 14 hrs 30 mins. We've gone through all 65 of the weekly flights to or via Washington DC, operated by two airlines, to help you compare flight times and prices. At the moment, the cheapest flight is £545.
Virgin Atlantic, Virgin Atlantic & KLM are the most popular airlines for flying from Cardiff to Washington DC. Adjust your search options to look by month, and see how much you could save if you fly during low season.
Washington DC actually has two airports to choose from – but Washington DC Washington Dulles International Airport (IAD) is the usually the cheapest option. If you need to fly into a specific airport, adjust your search to focus on those flights. The most popular airlines include Virgin Atlantic, Virgin Atlantic & KLM.
But if you can't find one which is right for you, try looking at flights to other cities in the USA to check out some other options.