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Northern Ireland

$366+ Cheap flights from Washington, D.C. (WAS) to Northern Ireland

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BFS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$617
(Mytrip)

One-way from

$366
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$618
From Washington, D.C. (WAS) to Northern Ireland
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One-way flight from Washington, D.C. (WAS) to Northern Ireland
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Highest demand for flights based on searches. 22% potential increase in price ($217 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This Mytrip deal was found by Cheapflights users on 8/14. 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.
Sun 9/286:50 pmBWI - BFS
2 stops16h 05mMultiple Airlines
Sun 10/510:10 pmBFS - BWI
2 stops24h 30mMultiple Airlines
Deal found 8/14$617
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:45 pmIAD - BHD
1 stop11h 50mBritish Airways
Mon 10/612:15 pmBHD - IAD
1 stop13h 00mBritish Airways
Deal found 8/13$624
This Ovago deal was found by Cheapflights users on 8/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/410:50 pmIAD - BHD
1 stop11h 15mBritish Airways
Fri 10/108:05 pmBHD - IAD
1 stop29h 15mBritish Airways
Deal found 8/14$626
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/181:31 pmBWI - BHD
2 stops17h 44mBritish Airways
Thu 10/3010:40 amBHD - BWI
1 stop13h 05mBritish Airways
Deal found 8/13$629
This British Airways deal was found by Cheapflights users on 8/13. 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 11/126:20 pmIAD - BHD
1 stop9h 50mBritish Airways
Sun 11/166:30 amBHD - IAD
1 stop18h 25mBritish Airways
Deal found 8/13$630
This PLAY deal was found by Cheapflights users on 8/13. 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 PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:50 pmBWI - BFS
2 stops23h 20mMultiple Airlines
Mon 10/66:45 amBFS - BWI
2 stops15h 55mMultiple Airlines
Deal found 8/13$634
This British Airways deal was found by Cheapflights users on 8/14. 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.
Sat 9/610:45 pmIAD - BHD
1 stop29h 20mBritish Airways
Sat 12/203:05 pmBHD - IAD
1 stop29h 30mBritish Airways
Deal found 8/14$640
This Expedia deal was found by Cheapflights users on 8/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1810:50 pmIAD - BHD
1 stop11h 15mBritish Airways
Thu 10/306:35 amBHD - IAD
2 stops16h 19mBritish Airways
Deal found 8/13$641
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 10/1810:45 amBWI - BHD
2 stops20h 30mAmerican Airlines
Thu 10/306:35 amBHD - BWI
2 stops18h 13mAmerican Airlines
Deal found 8/13$643
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Wed 10/15:50 pmIAD - BFS
2 stops23h 10mMultiple Airlines
Mon 10/66:45 amBFS - IAD
3 stops43h 05mMultiple Airlines
Deal found 8/13$646
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/142:18 pmIAD - BHD
2 stops20h 02mBritish Airways
Fri 10/246:35 amBHD - IAD
1 stop18h 40mBritish Airways
Deal found 8/13$647
This Booking.com deal was found by Cheapflights users on 8/13. 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.
Mon 9/110:40 pmIAD - BHD
1 stop12h 00mBritish Airways
Mon 9/153:25 pmBHD - IAD
2 stops28h 35mBritish Airways
Deal found 8/13$650

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 August 14, 2025.
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

Sun 9/28

6:50 pm-3:55 pm

2 stops16h 05m

Belfast Intl

Sun 10/5

10:10 pm-5:40 pm

2 stops24h 30m

$617

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 10/1

10:45 pm-3:35 pm

1 stop11h 50m

Belfast City

Mon 10/6

12:15 pm-8:15 pm

1 stop13h 00m

$624

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 10/14

7:25 pm-1:00 pm

1 stop12h 35m

Belfast City

Fri 10/24

6:35 am-8:15 pm

1 stop18h 40m

$624

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 10/18

7:25 pm-3:05 pm

1 stop14h 40m

Belfast City

Thu 10/30

6:35 am-4:35 pm

1 stop14h 00m

$624

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 10/4

10:50 pm-3:05 pm

1 stop11h 15m

Belfast City

Fri 10/10

8:05 pm-8:20 pm

1 stop29h 15m

$626

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sat 10/18

1:31 pm-12:15 pm

2 stops17h 44m

Belfast City

Thu 10/30

10:40 am-7:45 pm

1 stop13h 05m

$629

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

6:20 pm-9:10 am

1 stop9h 50m

Belfast City

Sun 11/16

6:30 am-7:55 pm

1 stop18h 25m

$630

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Wed 10/1

6:50 pm-11:10 pm

2 stops23h 20m

Belfast Intl

Mon 10/6

6:45 am-5:40 pm

2 stops15h 55m

$634

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 9/6

10:45 pm-9:05 am

1 stop29h 20m

Belfast City

Sat 12/20

3:05 pm-3:35 pm

1 stop29h 30m

$640

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sat 10/18

10:45 am-12:15 pm

2 stops20h 30m

Belfast City

Thu 10/30

6:35 am-8:48 pm

2 stops18h 13m

$643

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 33 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 August 14, 2025.
See what other customers who have flown with American Airlines and 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.
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Boarding

7.5

Food

6.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Boarding

7.5

Food

6.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
British Airways
6.7
Okay
7,266 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Boarding

7.5

Food

6.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

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.

  • 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. Reagan-National - Belfast Intl, Washington, D.C. Dulles Intl - Belfast Intl or Washington, D.C. Reagan-National - Belfast City 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.

  • What is the cheapest month to book a flight from Washington, D.C. to Northern Ireland?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Northern Ireland (average of $657). Flying from Washington, D.C. to Northern Ireland in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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

See prices for flight routes from nearby airports that may be better suited for you.
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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$620Average$832FlexibilityNo cancel feeOn-time70%

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