$791 Find Cheap Flights from Cardiff to Washington, D.C. - Compare and Save

In the last 5 days, the lowest price for a flight from Cardiff to Washington, D.C. Dulles Intl Airport was $791 for a round-trip ticket.

Yes, you’ll need a passport to travel to Washington, D.C. from Cardiff.

On your way to Washington, D.C., you’ll fly out from Cardiff Wales. You’ll be landing at Washington, D.C. Dulles Intl.

We unfortunately don’t have that data for this specific route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to Washington, D.C..

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Cardiff is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Cardiff with another airline. Booking your flights between Cardiff and IAD can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Cardiff up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.