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Cheap flights from Washington, D.C. to Northern Ireland from £189

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BFS
16 Mar — 23 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington, D.C. to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Washington, D.C. to Northern Ireland
Explore the most affordable flight options available from Washington, D.C. to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 February 2026.

Tue 3/319:40
BWI
-
BFS
2 stops12h 45m
Multiple Airlines
Tue 10/306:30
BFS
-
BWI
2 stops17h 10m
Multiple Airlines
Deal found 14/2£442
Mon 9/322:45
IAD
-
BHD
1 stop11h 30m
British Airways
Tue 24/311:25
BHD
-
IAD
1 stop13h 30m
British Airways
Deal found 12/2£465
Mon 9/316:46
IAD
-
BHD
2 stops13h 54m
American Airlines
Tue 24/308:45
BHD
-
IAD
1 stop11h 50m
American Airlines
Deal found 12/2£476
Mon 2/318:20
IAD
-
BHD
1 stop11h 20m
American Airlines
Tue 17/308:45
BHD
-
IAD
1 stop11h 50m
American Airlines
Deal found 11/2£477
Mon 2/316:34
DCA
-
BHD
2 stops13h 06m
American Airlines
Tue 17/308:45
BHD
-
DCA
2 stops13h 48m
American Airlines
Deal found 11/2£481
Thu 5/321:45
IAD
-
BHD
1 stop29h 40m
British Airways
Thu 12/306:35
BHD
-
IAD
1 stop18h 20m
British Airways
Deal found 11/2£481
Thu 5/318:20
IAD
-
BHD
1 stop19h 30m
American Airlines
Thu 12/306:35
BHD
-
IAD
1 stop18h 20m
American Airlines
Deal found 14/2£482
Tue 25/817:40
IAD
-
BHD
1 stop10h 20m
British Airways
Wed 2/910:05
BHD
-
IAD
1 stop15h 15m
British Airways
Deal found 14/2£484
Tue 3/319:40
IAD
-
BFS
2 stops17h 15m
Multiple Airlines
Tue 10/308:35
BFS
-
IAD
2 stops14h 55m
Multiple Airlines
Deal found 14/2£484
Fri 27/214:16
DCA
-
BHD
2 stops15h 14m
American Airlines
Mon 2/311:30
BHD
-
DCA
2 stops15h 45m
American Airlines
Deal found 13/2£487
Fri 16/1022:25
IAD
-
BHD
1 stop14h 45m
British Airways
Wed 4/1109:15
BHD
-
IAD
1 stop11h 20m
British Airways
Deal found 12/2£489
Thu 22/1021:30
BWI
-
BHD
1 stop13h 00m
British Airways
Tue 3/1111:25
BHD
-
BWI
1 stop12h 20m
British Airways
Deal found 12/2£489

Find flight deals from Washington, D.C. to Northern Ireland

Keep the following information in mind while searching for Washington, D.C. to Northern Ireland flight deals. Data was last updated 14 February 2026.

Round-trip from

£442

One-way from

£189
3/3-10/3
  • 3/3-10/3
  • 4 total stops
  • 29h 55m total
  • Washington, D.C. to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 11/8
  • 2 total stops
  • 16h 01m total
  • Washington, D.C. to Northern Ireland
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Northern Ireland 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 14 February 2026.
Use the filters below to find and compare flights from Washington, D.C. to Northern Ireland that are best for you.

Fly from

Washington, D.C.

Fly to

Northern Ireland

Route

Depart

Return

Price

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Tue 3/3

19:40-13:25

2 stops12h 45m

Belfast Intl

Tue 10/3

06:30-19:40

2 stops17h 10m

£442

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 2/3

18:20-10:40

1 stop11h 20m

Belfast City

Tue 17/3

08:45-16:35

1 stop11h 50m

£477

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 2/3

16:34-10:40

2 stops13h 06m

Belfast City

Tue 17/3

08:45-18:33

2 stops13h 48m

£481

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

21:45-08:25

1 stop29h 40m

Belfast City

Thu 12/3

06:35-20:55

1 stop18h 20m

£481

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

18:20-18:50

1 stop19h 30m

Belfast City

Thu 12/3

06:35-20:55

1 stop18h 20m

£482

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 9/5

17:40-08:55

1 stop10h 15m

Belfast City

Thu 21/5

14:20-20:20

1 stop11h 00m

£484

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 3/3

19:40-20:10

2 stops19h 30m

Belfast Intl

Tue 10/3

08:35-19:30

2 stops14h 55m

£485

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 27/2

14:16-10:30

2 stops15h 14m

Belfast City

Mon 2/3

11:30-22:15

2 stops15h 45m

£487

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

18:05-21:00

1 stop21h 55m

Belfast City

Thu 12/3

06:30-17:05

1 stop14h 35m

£492

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Mon 2/3

19:26-16:45

2 stops16h 19m

Belfast City

Tue 17/3

06:30-18:09

2 stops15h 39m

£498

Flights are sorted by cheapest return flights first.

Deals found on 13/2

Showing 1-10 of 44 results
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Best time to book a flight from Washington, D.C. to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Washington, D.C. 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 Washington, D.C. to Northern Ireland
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 Washington, D.C. to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. to Northern Ireland?

    Departing from Washington, D.C. to Northern Ireland will take you 11h 20m. The distance between Washington, D.C. and Northern Ireland is about 3390 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Washington, D.C. to Northern Ireland?

    While some choose either Washington, D.C. Dulles Intl - Belfast City or Washington, D.C. Reagan-National - Belfast Intl, Washington, D.C. Dulles Intl - Belfast Intl is the most popular route from Washington, D.C. to Northern Ireland.

  • Can I find deals for flights from Washington, D.C. to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Northern Ireland.

  • Can I find deals for business class flights from Washington, D.C. to Northern Ireland?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Northern Ireland?

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Can Cheapflights find flights from Washington, D.C. to Northern Ireland with no change fees?

Yes, we can. To see specific flights from Washington, D.C. to Northern Ireland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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