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Northern Ireland

$284+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BFS
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
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 September 29, 2025.

Round-trip from

$602
(Mytrip)

One-way from

$284
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$647
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. 20% potential increase in price ($194 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 29, 2025.

This Mytrip deal was found by Cheapflights users on 9/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:40 pmIAD - BFS
2 stops15h 30mMultiple Airlines
Wed 11/197:55 amBFS - IAD
2 stops15h 35mMultiple Airlines
Deal found 9/29$602
This Mytrip deal was found by Cheapflights users on 9/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:40 pmIAD - BFS
2 stops15h 20mMultiple Airlines
Tue 11/186:25 amBFS - IAD
2 stops17h 05mMultiple Airlines
Deal found 9/27$641
This American Airlines deal was found by Cheapflights users on 9/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/273:47 pmBWI - BHD
2 stops18h 28mAmerican Airlines
Mon 11/36:35 amBHD - BWI
2 stops20h 30mAmerican Airlines
Deal found 9/29$648
This Air France deal was found by Cheapflights users on 9/27. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:25 pmIAD - BHD
1 stop22h 50mKLM
Mon 10/205:25 pmBHD - IAD
1 stop27h 10mKLM
Deal found 9/27$656
This Delta deal was found by Cheapflights users on 9/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:05 pmIAD - BHD
1 stop17h 45mDelta
Sun 11/166:30 amBHD - IAD
1 stop14h 35mDelta
Deal found 9/26$657
This Mytrip deal was found by Cheapflights users on 9/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/105:30 pmIAD - BFS
2 stops21h 40mMultiple Airlines
Mon 11/177:50 amBFS - IAD
3 stops35h 45mMultiple Airlines
Deal found 9/28$666
This Delta deal was found by Cheapflights users on 9/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:30 pmDCA - BHD
2 stops18h 20mDelta
Sun 11/166:30 amBHD - DCA
2 stops18h 23mDelta
Deal found 9/28$671
This Priceline deal was found by Cheapflights users on 9/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/269:35 pmBWI - BHD
1 stop30h 05mBritish Airways
Sun 11/25:30 amBHD - BWI
1 stop17h 15mBritish Airways
Deal found 9/27$673
This PLAY deal was found by Cheapflights users on 9/27. 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 PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:50 pmBWI - BFS
2 stops19h 20mMultiple Airlines
Wed 10/156:00 amBFS - BWI
2 stops16h 40mMultiple Airlines
Deal found 9/27$675
This Virgin Atlantic deal was found by Cheapflights users on 9/27. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/175:25 pmIAD - BHD
1 stop18h 30mVirgin Atlantic
Tue 10/216:30 amBHD - IAD
2 stops17h 48mVirgin Atlantic
Deal found 9/27$686
This Expedia deal was found by Cheapflights users on 9/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2710:45 pmIAD - BHD
1 stop11h 30mBritish Airways
Mon 11/39:15 amBHD - IAD
1 stop15h 40mBritish Airways
Deal found 9/29$713
This Ovago deal was found by Cheapflights users on 9/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/277:45 pmBWI - BHD
2 stops16h 20mBritish Airways
Mon 11/37:25 pmBHD - BWI
1 stop28h 20mBritish Airways
Deal found 9/29$740

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 September 29, 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

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 11/12

7:40 pm-4:10 pm

2 stops15h 30m

Belfast Intl

Wed 11/19

7:55 am-6:30 pm

2 stops15h 35m

$602

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 3/16

10:45 pm-2:15 pm

1 stop11h 30m

Belfast City

Sun 3/22

6:30 am-4:35 pm

1 stop14h 05m

$635

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 11/11

7:40 pm-4:00 pm

2 stops15h 20m

Belfast Intl

Tue 11/18

6:25 am-6:30 pm

2 stops17h 05m

$641

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Mon 10/27

3:47 pm-2:15 pm

2 stops18h 28m

Belfast City

Mon 11/3

6:35 am-10:05 pm

2 stops20h 30m

$648

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 10/17

5:25 pm-9:15 pm

1 stop22h 50m

Belfast City

Tue 10/21

6:30 am-3:35 pm

1 stop14h 05m

$656

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Sun 11/16

6:30 am-4:05 pm

1 stop14h 35m

$656

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 10/19

5:25 pm-9:15 pm

1 stop22h 50m

Belfast City

Sun 10/26

5:20 pm-5:05 pm

1 stop27h 45m

$656

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 10/26

7:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Sun 11/2

5:30 am-4:05 pm

1 stop14h 35m

$656

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 11/30

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Sat 12/6

5:20 pm-4:05 pm

1 stop27h 45m

$657

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 3/16

6:59 pm-2:15 pm

2 stops15h 16m

Belfast City

Sun 3/22

9:10 am-6:48 pm

2 stops13h 38m

$661

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/28

Showing 1-10 of 34 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 September 29, 2025.
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
7,406 reviews

Entertainment

6.4

Overall

6.7

Comfort

6.7

Food

6.3

Crew

7.6

Boarding

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,406 reviews
British Airways
6.7
Okay
7,406 reviews

Entertainment

6.4

Overall

6.7

Comfort

6.7

Food

6.3

Crew

7.6

Boarding

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

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 $635, British Airways can have you in Northern Ireland from Washington, D.C. in 11h 30m. 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. Reagan-National - Belfast Intl 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.

  • 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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$620Average$854FlexibilityNo cancel feeOn-time70%

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