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Northern Ireland

$630+ 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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BFS
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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 November 13, 2025.

Round-trip from

$631
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$705
From Washington, D.C. (WAS) to Northern Ireland
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($196 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 13, 2025.

This American Airlines deal was found by Cheapflights users on 11/11. 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.
Thu 12/116:20 pmIAD - BHD
1 stop19h 30mAmerican Airlines
Thu 12/186:35 amBHD - IAD
1 stop14h 00mAmerican Airlines
Deal found 11/11$640
This Air France deal was found by Cheapflights users on 11/13. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:05 pmIAD - BHD
1 stop17h 45mMultiple Airlines
Wed 12/35:20 pmBHD - IAD
1 stop27h 45mMultiple Airlines
Deal found 11/13$652
This Delta deal was found by Cheapflights users on 11/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:11 pmIAD - BHD
2 stops23h 39mDelta
Wed 12/36:30 amBHD - IAD
1 stop14h 35mDelta
Deal found 11/13$657
This Delta deal was found by Cheapflights users on 11/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:05 pmIAD - BHD
1 stop17h 45mDelta
Sun 12/145:20 pmBHD - IAD
2 stops34h 48mDelta
Deal found 11/11$659
This Delta deal was found by Cheapflights users on 11/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:03 pmDCA - BHD
2 stops18h 47mDelta
Sun 12/145:20 pmBHD - DCA
2 stops29h 39mDelta
Deal found 11/11$659
This Delta deal was found by Cheapflights users on 11/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/262:35 pmBWI - BHD
2 stops21h 15mDelta
Wed 12/36:30 amBHD - BWI
2 stops15h 21mDelta
Deal found 11/13$667
This Delta deal was found by Cheapflights users on 11/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/264:35 pmDCA - BHD
2 stops19h 15mDelta
Wed 12/36:30 amBHD - DCA
2 stops17h 10mDelta
Deal found 11/12$667
This Mytrip deal was found by Cheapflights users on 11/13. 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.
Mon 12/15:30 pmIAD - BFS
2 stops21h 45mMultiple Airlines
Sun 12/148:15 amBFS - IAD
3 stops36h 00mMultiple Airlines
Deal found 11/13$689
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:05 pmIAD - BFS
2 stops12h 25mMultiple Airlines
Thu 12/187:05 amBFS - IAD
2 stops17h 25mMultiple Airlines
Deal found 11/11$702
This KLM deal was found by Cheapflights users on 11/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:59 pmDCA - BHD
2 stops20h 51mKLM
Sun 11/236:30 amBHD - DCA
2 stops15h 30mKLM
Deal found 11/10$722
This British Airways deal was found by Cheapflights users on 11/12. 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.
Sun 12/149:45 pmIAD - BHD
1 stop28h 55mBritish Airways
Wed 1/711:25 amBHD - IAD
1 stop33h 10mBritish Airways
Deal found 11/12$744
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:30 pmIAD - BHD
2 stops22h 20mMultiple Airlines
Sun 12/147:00 amBHD - IAD
3 stops37h 15mMultiple Airlines
Deal found 11/11$749

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 November 13, 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 - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 3/16

10:45 pm-2:15 pm

1 stop11h 30m

Belfast City

Sun 3/22

9:10 am-4:40 pm

1 stop11h 30m

$630

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

9:45 pm-4:40 pm

1 stop13h 55m

Belfast City

Thu 3/12

6:35 am-4:35 pm

1 stop14h 00m

$630

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sun 5/10

9:30 pm-1:05 pm

1 stop10h 35m

Belfast City

Sun 5/17

1:00 pm-7:40 pm

1 stop11h 40m

$646

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

6:20 pm-10:20 am

1 stop11h 00m

Belfast City

Thu 3/12

10:40 am-11:54 pm

2 stops17h 14m

$649

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/26

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Wed 12/3

5:20 pm-4:05 pm

1 stop27h 45m

$652

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 12/1

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Sun 12/14

5:20 pm-4:05 pm

1 stop27h 45m

$653

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 3/16

5:23 pm-10:40 am

2 stops13h 17m

Belfast City

Sun 3/22

12:10 pm-10:46 pm

2 stops14h 36m

$653

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/26

12:11 pm-4:50 pm

2 stops23h 39m

Belfast City

Wed 12/3

6:30 am-4:05 pm

1 stop14h 35m

$657

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 4/1

7:15 pm-1:30 pm

1 stop13h 15m

Belfast City

Sun 4/5

6:05 pm-5:25 pm

1 stop28h 20m

$658

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 12/1

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Sun 12/14

5:20 pm-11:08 pm

2 stops34h 48m

$659

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 30 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

How much does it cost to fly round-trip from Washington, D.C. to Northern Ireland?

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 November 13, 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
7,520 reviews

Boarding

6.9

Comfort

6.7

Food

6.3

Overall

6.7

Crew

7.6

Entertainment

6.4

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
7,520 reviews
British Airways
6.7
Okay
7,520 reviews

Boarding

6.9

Comfort

6.7

Food

6.3

Overall

6.7

Crew

7.6

Entertainment

6.4

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 $649, British Airways can have you in Northern Ireland from Washington, D.C. in 11h. 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

Browse thousands of different options on Cheapflights for your next trip

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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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$620Average$854FlexibilityNo cancel feeOn-time70%

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