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Northern Ireland

$634+ Cheap flights from Washington, D.C. (WAS) to Northern Ireland

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BFS
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Northern Ireland

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 February 13, 2026.

This SmartFares deal was found by Cheapflights users on 2/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/910:45 pm
IAD
-
BHD
1 stop11h 30m
British Airways
Tue 3/2411:25 am
BHD
-
IAD
1 stop13h 30m
British Airways
Deal found 2/12$634
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/94:46 pm
IAD
-
BHD
2 stops13h 54m
American Airlines
Tue 3/248:45 am
BHD
-
IAD
1 stop11h 50m
American Airlines
Deal found 2/12$648
This American Airlines deal was found by Cheapflights users on 2/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:20 pm
IAD
-
BHD
1 stop11h 20m
American Airlines
Tue 3/178:45 am
BHD
-
IAD
1 stop11h 50m
American Airlines
Deal found 2/11$650
This American Airlines deal was found by Cheapflights users on 2/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:34 pm
DCA
-
BHD
2 stops13h 06m
American Airlines
Tue 3/178:45 am
BHD
-
DCA
2 stops13h 48m
American Airlines
Deal found 2/11$655
This oojo deal was found by Cheapflights users on 2/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:45 pm
IAD
-
BHD
1 stop29h 40m
British Airways
Thu 3/129:05 am
BHD
-
IAD
1 stop15h 50m
British Airways
Deal found 2/10$656
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:20 pm
IAD
-
BHD
1 stop21h 10m
American Airlines
Thu 3/126:35 am
BHD
-
IAD
1 stop14h 00m
American Airlines
Deal found 2/12$658
This Cheapflightsfares deal was found by Cheapflights users on 2/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:30 pm
IAD
-
BHD
1 stop12h 50m
British Airways
Mon 8/316:30 am
BHD
-
IAD
1 stop14h 20m
British Airways
Deal found 2/10$659
This Cheapflightsfares deal was found by Cheapflights users on 2/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:30 pm
IAD
-
BHD
1 stop12h 50m
British Airways
Wed 9/210:05 am
BHD
-
IAD
1 stop14h 35m
British Airways
Deal found 2/12$660
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/41:54 pm
DCA
-
BHD
2 stops15h 21m
American Airlines
Sun 3/86:30 am
BHD
-
DCA
2 stops15h 12m
American Airlines
Deal found 2/9$661
This British Airways deal was found by Cheapflights users on 2/12. 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.
Fri 10/1610:25 pm
IAD
-
BHD
1 stop14h 45m
British Airways
Wed 11/49:15 am
BHD
-
IAD
1 stop11h 20m
British Airways
Deal found 2/12$667
This British Airways deal was found by Cheapflights users on 2/12. 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 10/229:30 pm
BWI
-
BHD
1 stop13h 00m
British Airways
Sat 10/316:00 pm
BHD
-
BWI
1 stop29h 45m
British Airways
Deal found 2/12$667
This KLM deal was found by Cheapflights users on 2/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:05 pm
IAD
-
BHD
1 stop17h 45m
KLM
Sun 3/86:30 am
BHD
-
IAD
1 stop14h 35m
KLM
Deal found 2/9$670

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 February 13, 2026.

Round-trip from

$649
(British Airways)
From Washington, D.C. (WAS) to Northern Ireland
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated February 13, 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

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 3/2

6:20 pm-10:40 am

1 stop11h 20m

Belfast City

Tue 3/17

8:45 am-4:35 pm

1 stop11h 50m

$650

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 3/2

4:34 pm-10:40 am

2 stops13h 06m

Belfast City

Tue 3/17

8:45 am-6:33 pm

2 stops13h 48m

$655

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

9:45 pm-8:25 am

1 stop29h 40m

Belfast City

Thu 3/12

9:05 am-8:55 pm

1 stop15h 50m

$656

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 5/9

5:40 pm-8:55 am

1 stop10h 15m

Belfast City

Thu 5/21

6:30 am-3:50 pm

1 stop14h 20m

$659

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 3/4

1:54 pm-10:15 am

2 stops15h 21m

Belfast City

Sun 3/8

6:30 am-4:42 pm

2 stops15h 12m

$661

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 3/4

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Sun 3/8

6:30 am-4:05 pm

1 stop14h 35m

$670

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 3/4

12:24 pm-4:50 pm

2 stops23h 26m

Belfast City

Sun 3/8

6:30 am-4:05 pm

1 stop14h 35m

$674

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Mon 3/2

7:26 pm-4:45 pm

2 stops16h 19m

Belfast City

Tue 3/17

6:30 am-6:09 pm

2 stops15h 39m

$679

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Thu 3/12

6:30 am-7:19 pm

2 stops16h 49m

$681

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Mon 3/2

7:40 pm-12:00 pm

2 stops11h 20m

Belfast Intl

Tue 3/17

8:35 am-7:40 pm

2 stops15h 05m

$720

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 36 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 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 Washington, D.C. to Northern Ireland
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated February 13, 2026.
See what other customers who have flown with British Airways from Washington, D.C. to Northern Ireland have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,736 reviews

Overall

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

Comfort

6.8

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,736 reviews
British Airways
6.7
Okay
7,736 reviews

Overall

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

Comfort

6.8

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

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?

    For as low as $650, American Airlines can have you in Northern Ireland from Washington, D.C. in 11h 20m. Airlines will cover a distance of 3390 mi. This flight may include one or multiple stops.

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

    When deciding which route to take from Washington, D.C. to Northern Ireland consider Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Dulles Intl - Belfast City or Baltimore/Washington - Belfast Intl as they are the most popular.

  • 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 vacation 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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Top airline flying from Washington, D.C. to Northern Ireland

Discover the top airline that operate flights from Washington, D.C. to Northern Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$627Average$875FlexibilityNo cancel feeOn-time70%

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