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Cheap flights from Washington, D.C. to Northern Ireland from £248

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BFS
13 Jul — 20 Jul1
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 13 June 2026.

Wed 8/706:00
DCA
-
BFS
3 stops32h 15m
Multiple Airlines
Wed 15/705:55
BFS
-
DCA
2 stops17h 17m
Multiple Airlines
Deal found 8/6£691
Sun 20/922:25
IAD
-
BHD
1 stop11h 10m
British Airways
Thu 24/906:30
BHD
-
IAD
1 stop15h 55m
British Airways
Deal found 9/6£728
Sun 13/921:35
BWI
-
BHD
1 stop12h 00m
British Airways
Thu 17/916:35
BHD
-
BWI
1 stop32h 05m
British Airways
Deal found 9/6£728
Sun 6/922:25
IAD
-
BHD
1 stop14h 15m
British Airways
Wed 16/911:35
BHD
-
IAD
1 stop13h 05m
British Airways
Deal found 10/6£738
Sun 6/921:35
BWI
-
BHD
1 stop12h 00m
British Airways
Wed 16/910:05
BHD
-
BWI
1 stop12h 10m
British Airways
Deal found 10/6£738
Wed 8/709:55
IAD
-
BFS
2 stops28h 20m
Multiple Airlines
Wed 15/705:55
BFS
-
IAD
2 stops19h 29m
Multiple Airlines
Deal found 8/6£739
Fri 11/922:25
IAD
-
BHD
1 stop14h 45m
British Airways
Wed 16/910:05
BHD
-
IAD
1 stop14h 35m
British Airways
Deal found 12/6£747
Sun 6/917:40
IAD
-
BHD
1 stop10h 40m
Delta
Mon 14/917:30
BHD
-
IAD
1 stop27h 05m
Delta
Deal found 10/6£752
Fri 11/921:30
BWI
-
BHD
1 stop18h 05m
British Airways
Wed 16/906:30
BHD
-
BWI
1 stop15h 45m
British Airways
Deal found 10/6£755
Sun 6/912:29
IAD
-
BHD
2 stops15h 51m
KLM
Mon 14/917:30
BHD
-
IAD
1 stop27h 05m
KLM
Deal found 10/6£755
Sun 6/922:25
IAD
-
BHD
1 stop11h 10m
British Airways
Sun 13/911:00
BHD
-
IAD
1 stop11h 25m
British Airways
Deal found 10/6£757
Sun 6/921:35
BWI
-
BHD
1 stop12h 00m
British Airways
Sun 13/913:10
BHD
-
BWI
1 stop11h 35m
British Airways
Deal found 10/6£757

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 13 June 2026.

Round-trip from

£691

One-way from

£248
8/7-15/7
  • 8/7-15/7
  • 5 total stops
  • 49h 32m total
  • Washington, D.C. to Northern Ireland
Search Deals
11/9
  • 11/9
  • 2 total stops
  • 31h 35m 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 13 June 2026.
Use the filters below to find and compare flights from Washington, D.C. to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Wed 8/7

06:00-19:15

3 stops32h 15m

Belfast Intl

Wed 15/7

05:55-18:12

2 stops17h 17m

£691

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 20/9

22:25-14:35

1 stop11h 10m

Belfast City

Thu 24/9

06:30-17:25

1 stop15h 55m

£728

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 5/10

17:45-12:55

1 stop14h 10m

Belfast City

Thu 8/10

06:30-17:25

1 stop15h 55m

£728

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 13/9

21:35-14:35

1 stop12h 00m

Belfast City

Thu 17/9

16:35-19:40

1 stop32h 05m

£729

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 8/7

09:55-19:15

2 stops28h 20m

Belfast Intl

Wed 15/7

05:55-20:24

2 stops19h 29m

£739

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Fri 11/9

21:30-20:35

1 stop18h 05m

Belfast City

Wed 16/9

06:30-17:15

1 stop15h 45m

£755

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 6/9

12:29-09:20

2 stops15h 51m

Belfast City

Tue 15/9

17:30-18:07

2 stops29h 37m

£763

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 6/9

08:29-09:20

2 stops19h 51m

Belfast City

Wed 16/9

09:50-22:03

2 stops17h 13m

£763

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 6/9

17:00-16:55

2 stops18h 55m

Belfast City

Tue 15/9

09:50-21:41

2 stops16h 51m

£763

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 6/9

21:35-14:35

1 stop12h 00m

Belfast City

Mon 14/9

09:40-19:40

1 stop15h 00m

£776

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 44 resultsSorted by cheapest first
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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 10m. 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 Baltimore/Washington - Belfast Intl or Washington, D.C. Dulles Intl - Belfast City, 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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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to Northern Ireland. 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 Washington, D.C. to Northern Ireland?

Millions of users choose and trust Cheapflights to book the best flight deals from Washington, D.C. to Northern Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Northern Ireland become cheaper?

Of course! You can now track prices for flights from Washington, D.C. to Northern Ireland 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.

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