Cheap flights from Belfast Intl Airport to District of Columbia from £286
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Belfast Intl to District of Columbia
Keep the following information in mind while searching for Belfast Intl to District of Columbia flight deals. Data was last updated 15 September 2025.
Find flight deals from Belfast Intl to District of Columbia
Cheapest flights from Belfast Intl to District of ColumbiaExplore the most affordable flight options available from Belfast Intl to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.
Explore the most affordable flight options available from Belfast Intl to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Belfast Intl Airport to District of Columbia that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BelfastWashington, D.C.
BFS - IAD
BFSIAD
Belfast Intl
Fri 10/10
06:05-22:10
2 stops21h 05m
Washington, D.C. Dulles Intl
Sun 12/10
20:30-20:20
2 stops18h 50m
BelfastWashington, D.C.
BFS - IAD
BFSIAD
Belfast Intl
Thu 30/10
06:30-19:30
2 stops17h 00m
Washington, D.C. Dulles Intl
Thu 6/11
19:40-22:20
2 stops21h 40m
BelfastWashington, D.C.
BFS - IAD
BFSIAD
Belfast Intl
Tue 14/10
21:25-15:20
3 stops46h 55m
BelfastWashington, D.C.
BFS - DCA
BFSDCA
Belfast Intl
Tue 14/10
08:15-12:04
3 stops32h 49m
Best time to book a flight from Belfast Intl to District of Columbia
Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Belfast Intl with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Belfast Intl Airport to District of Columbia
Related info for your journey
Find useful and relevant information for your journey from Belfast Intl to District of Columbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Belfast Intl to District of Columbia
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Belfast Intl to District of Columbia?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Belfast Intl to District of Columbia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to District of Columbia?
Cheapflights helps you find that perfect flight to District of Columbia from Belfast Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Belfast Intl to District of Columbia with no change fees?
Yes! Cheapflights helps users easily find flights from Belfast Intl to District of Columbia with no change fees.
Can Cheapflights notify me if prices for flights from Belfast Intl to District of Columbia become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!