Find flights
When to book

Cheap flights from District of Columbia to Belfast Intl Airport from £205

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BFS
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from District of Columbia to Belfast Intl

Keep the following information in mind while searching for District of Columbia to Belfast Intl flight deals. Data was last updated 8 January 2026.

Round-trip from

£520

One-way from

£205
3/2-10/2
  • 3/2-10/2
  • 5 total stops
  • 46h 50m total
  • District of Columbia to Belfast
Search Deals
15/2
  • 15/2
  • 2 total stops
  • 15h 25m total
  • District of Columbia to Belfast
Search Deals

Find flight deals from District of Columbia to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from District of Columbia to Belfast Intl
Explore the most affordable flight options available from District of Columbia to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 January 2026.

Tue 3/217:30IAD - BFS
2 stops17h 30mMultiple Airlines
Tue 10/218:25BFS - IAD
3 stops29h 20mMultiple Airlines
Deal found 5/1£520
Sat 21/219:40IAD - BFS
3 stops23h 10mMultiple Airlines
Sat 28/223:10BFS - IAD
3 stops45h 05mMultiple Airlines
Deal found 7/1£553
Sat 21/216:15DCA - BFS
2 stops22h 40mMultiple Airlines
Sat 28/209:40BFS - DCA
2 stops17h 16mMultiple Airlines
Deal found 7/1£655

Cheapflights Fare Finder

 
Customise your flight search to find flights from District of Columbia to Belfast Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 8 January 2026.
Use the filters below to find and compare flights from District of Columbia to Belfast Intl Airport that are best for you.

Fly from

District of Columbia

Fly to

Belfast Intl

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 3/2

17:30-16:00

2 stops17h 30m

Belfast Intl

Tue 10/2

18:25-18:45

3 stops29h 20m

£520

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sat 21/2

19:40-23:50

3 stops23h 10m

Belfast Intl

Sat 28/2

23:10-15:15

3 stops45h 05m

£553

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 21/2

16:15-19:55

2 stops22h 40m

Belfast Intl

Sat 28/2

09:40-21:56

2 stops17h 16m

£655

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 15/2

22:30-18:55

2 stops15h 25m

£205

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sun 15/2

08:00-15:35

3 stops26h 35m

£321

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Best time to book a flight from District of Columbia to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from District of Columbia with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Belfast Intl Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from District of Columbia to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Belfast Intl.

  • Can I find deals for business class flights from District of Columbia to Belfast Intl?

    Yes. Cheapflights offers flight deals from District of Columbia to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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 District of Columbia to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Belfast Intl flights
Newark to Belfast Intl flights
John F Kennedy Intl to Belfast City flights
Seattle to Belfast City flights
O'Hare Intl to Belfast Intl flights
LaGuardia to Belfast City flights
Dallas/Fort Worth to Belfast Intl flights
Boston to Belfast Intl flights
Orlando to Belfast Intl flights
Hobby to Belfast City flights
Denver to Belfast Intl flights
Los Angeles to Belfast Intl flights
Los Angeles to Belfast City flights
Denver to Belfast City flights
Boston to Belfast City flights
Minneapolis to Belfast Intl flights
Minneapolis to Belfast City flights
San Francisco to Belfast Intl flights
George Bush Intcntl to Belfast Intl flights
Portland to Belfast Intl flights
Indianapolis to Belfast City flights
Orlando to Belfast City flights
Philadelphia to Belfast City flights
George Bush Intcntl to Belfast City flights
San Francisco to Belfast City flights
Portland to Belfast City flights
Atlanta to Belfast Intl flights

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 District of Columbia to Belfast Intl?

Cheapflights helps you search for flights from District of Columbia to Belfast Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from District of Columbia to Belfast Intl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast Intl from District of Columbia.

Can Cheapflights find flights from District of Columbia to Belfast Intl with no change fees?

Yes, we can. To see specific flights from District of Columbia to Belfast Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from District of Columbia to Belfast Intl become cheaper?

Of course! You can now track prices for flights from District of Columbia to Belfast Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.