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Washington, D.C.

$423+ Cheap flights from Northern Ireland to Washington, D.C. (WAS)

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — WAS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Northern Ireland to Washington, D.C.

Cheapest flights from Northern Ireland to Washington, D.C.
Explore the most affordable flight options available from Northern Ireland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:35 am
BHD
-
IAD
1 stop18h 20m
British Airways
Mon 3/910:45 pm
IAD
-
BHD
1 stop11h 30m
British Airways
Deal found 1/26$730
This Booking.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/122:25 pm
BFS
-
IAD
2 stops31h 15m
Multiple Airlines
Thu 3/199:30 pm
IAD
-
BFS
2 stops20h 50m
Multiple Airlines
Deal found 1/27$747
This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/510:35 am
BHD
-
IAD
2 stops34h 00m
British Airways
Mon 2/911:34 am
IAD
-
BHD
2 stops23h 31m
British Airways
Deal found 1/26$779
This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/511:05 am
BHD
-
DCA
2 stops17h 29m
British Airways
Mon 2/93:30 pm
DCA
-
BHD
2 stops14h 10m
British Airways
Deal found 1/26$796
This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/128:00 pm
BHD
-
BWI
2 stops26h 04m
British Airways
Mon 2/167:54 pm
BWI
-
BHD
2 stops15h 11m
British Airways
Deal found 1/26$837
This Booking.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:30 am
BFS
-
BWI
2 stops21h 29m
Multiple Airlines
Thu 3/198:40 pm
BWI
-
BFS
3 stops20h 25m
Multiple Airlines
Deal found 1/27$844
This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/55:45 pm
BHD
-
BWI
2 stops34h 36m
British Airways
Mon 2/911:13 am
BWI
-
BHD
2 stops23h 52m
British Airways
Deal found 1/26$870
This Booking.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1510:45 pm
BFS
-
IAD
3 stops44h 50m
Multiple Airlines
Sun 3/2211:30 pm
IAD
-
BFS
2 stops15h 25m
Multiple Airlines
Deal found 1/29$890
This British Airways deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1812:25 pm
BHD
-
DCA
2 stops16h 25m
British Airways
Sun 2/2210:45 pm
DCA
-
BHD
2 stops30h 55m
British Airways
Deal found 1/28$1,003
This British Airways deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/510:40 am
BHD
-
BWI
1 stop13h 05m
British Airways
Mon 3/912:16 pm
BWI
-
BHD
2 stops18h 24m
British Airways
Deal found 1/28$1,024
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:35 am
BHD
-
DCA
2 stops19h 08m
British Airways
Mon 2/161:44 pm
DCA
-
BHD
2 stops14h 21m
British Airways
Deal found 1/27$1,040
This Mytrip deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/98:35 am
BFS
-
BWI
3 stops30h 52m
Multiple Airlines
Thu 2/1211:30 am
BWI
-
BFS
2 stops29h 50m
Multiple Airlines
Deal found 1/26$1,230

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

Keep the following information in mind while searching for Northern Ireland to Washington, D.C. flight deals. Data was last updated January 29, 2026.

Round-trip from

$730
(British Airways)

One-way from

$423
(Kiwi.com)
From Northern Ireland to Washington, D.C. (WAS)
Search Deals
One-way flight from Northern Ireland to Washington, D.C. (WAS)
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Northern Ireland to Washington, D.C. 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 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Northern Ireland to Washington, D.C. that are best for you.

Fly from

Northern Ireland

Fly to

Washington, D.C.

Route

Depart

Return

Price

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 3/5

6:35 am-7:55 pm

1 stop18h 20m

Washington, D.C. Dulles Intl

Mon 3/9

10:45 pm-2:15 pm

1 stop11h 30m

$730

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 3/12

2:25 pm-5:40 pm

2 stops31h 15m

Washington, D.C. Dulles Intl

Thu 3/19

9:30 pm-10:20 pm

2 stops20h 50m

$747

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 2/12

10:40 am-11:50 pm

2 stops18h 10m

Washington, D.C. Reagan-National

Mon 2/16

4:34 pm-10:40 am

2 stops13h 06m

$796

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 2/12

8:00 pm-5:04 pm

2 stops26h 04m

Baltimore/Washington

Mon 2/16

7:54 pm-4:05 pm

2 stops15h 11m

$837

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Thu 3/12

6:30 am-11:59 pm

2 stops21h 29m

Baltimore/Washington

Thu 3/19

8:40 pm-9:05 pm

3 stops20h 25m

$844

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 3/15

10:45 pm-3:35 pm

3 stops44h 50m

Washington, D.C. Dulles Intl

Sun 3/22

11:30 pm-6:55 pm

2 stops15h 25m

$890

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 2/18

12:25 pm-11:50 pm

2 stops16h 25m

Washington, D.C. Reagan-National

Sun 2/22

10:45 pm-10:40 am

2 stops30h 55m

$1,003

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 3/5

10:40 am-6:45 pm

1 stop13h 05m

Baltimore/Washington

Mon 3/9

12:16 pm-10:40 am

2 stops18h 24m

$1,024

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Mon 2/9

8:35 am-10:27 am

3 stops30h 52m

Baltimore/Washington

Thu 2/12

11:30 am-10:20 pm

2 stops29h 50m

$1,230

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Sun 3/15

10:45 pm-7:40 pm

3 stops24h 55m

Baltimore/Washington

Sun 3/22

8:40 pm-9:55 pm

3 stops21h 15m

$1,249

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 26 results
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Best time to book a flight from Northern Ireland to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Northern Ireland with our price prediction graph.
Estimated round-trip 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 Northern Ireland to Washington, D.C.
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 Northern Ireland to Washington, D.C.. 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 Northern Ireland to Washington, D.C.?

    A quick flight from Northern Ireland to Washington, D.C. can take about 18h 20m. British Airways provides one of the quickest options available for as low as $730. The distance from Northern Ireland to Washington, D.C. is about 3390 mi.

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

    The most popular route from Northern Ireland to Washington, D.C. is Belfast Intl - Washington, D.C. Dulles Intl. You may also consider Belfast Intl - Baltimore/Washington or Belfast City - Baltimore/Washington.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland to Washington, D.C. 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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Alternative routes for Northern Ireland to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Dulles Intl flights
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Glasgow Intl to Dulles Intl flights
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Newcastle upon Tyne to Dulles Intl flights
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London City to Reagan-National flights
Newcastle upon Tyne to Reagan-National flights
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Exeter to Dulles Intl flights
Norwich to Dulles Intl flights
Cardiff to Dulles Intl flights

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