Cheap flights from Washington, D.C. to Belfast from $374

Travelers frequently search for route combinations, such as Washington, D.C. and Orlando, Miami, Dallas, Atlanta, San Salvador, Tampa, Los Angeles, Cancún, New Orleans, San Juan, Guadalajara, Mexico City, Chicago, Istanbul, Houston, Denver, Fort Lauderdale, Las Vegas, London, Guatemala City.

Travelers frequently search for route combinations, such as Belfast and New York, Minneapolis, Orlando, Boston, Miami, Houston, Los Angeles, Sacramento, London, Paris, Birmingham, Glasgow, Douglas, Antalya, Edinburgh, Barcelona, Vancouver, Kraków, Copenhagen, Lyon.

Washington, D.C. is mainly served by Washington Dulles International. But there are other airports nearby, including Baltimore–Washington International, Ronald Reagan Washington National.

The main airport in Washington, D.C. is Washington Dulles International. It is also served by Philadelphia International, Norfolk International, Richmond International, Lehigh Valley International, Atlantic City International, Trenton–Mercer, Harrisburg International, Hagerstown Regional, Charlottesville–Albemarle, Lancaster.

The main airport in Belfast is Belfast International. It is also served by Dublin, Glasgow Prestwick, Isle of Man, Ireland West Airport Knock, Donegal, City of Derry.

Currently, you can fly between Washington, D.C. and Belfast with easyJet, Ryanair, Air Canada, Aer Lingus, Air Transat.

If you don’t have specific dates for your trip between Washington, D.C. and Belfast, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between Washington, D.C. and Belfast, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around Washington, D.C.. The main one is Washington Dulles International and other nearby airports include Philadelphia International, Norfolk International, Richmond International, Lehigh Valley International, Atlantic City International, Trenton–Mercer, Harrisburg International, Hagerstown Regional, Charlottesville–Albemarle, Lancaster