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$252+ Cheap flights from Washington, D.C. (WAS) to Belfast

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BHD
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Belfast

Cheapest flights from Washington, D.C. to Belfast
Explore the most affordable flight options available from Washington, D.C. to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This FlightHub deal was found by Cheapflights users on 12/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:45 pmIAD - BHD
1 stop14h 00mBritish Airways
Sun 1/48:25 pmBHD - IAD
2 stops32h 39mBritish Airways
Deal found 12/11$1,465
This FlightHub deal was found by Cheapflights users on 12/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/273:25 pmDCA - BHD
2 stops17h 50mBritish Airways
Sun 1/48:25 pmBHD - DCA
2 stops27h 15mBritish Airways
Deal found 12/11$1,734
This oojo deal was found by Cheapflights users on 12/10. 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.
Sat 12/275:05 pmIAD - BHD
2 stops14h 45mMultiple Airlines
Sun 1/48:25 pmBHD - IAD
2 stops32h 39mMultiple Airlines
Deal found 12/10$1,735
This KLM deal was found by Cheapflights users on 12/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:05 pmIAD - BHD
1 stop17h 45mKLM
Sun 1/45:20 pmBHD - IAD
1 stop27h 45mKLM
Deal found 12/11$1,787
This oojo deal was found by Cheapflights users on 12/10. 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.
Sat 12/275:50 pmBWI - BHD
2 stops17h 55mBritish Airways
Sun 1/48:25 pmBHD - BWI
2 stops25h 37mBritish Airways
Deal found 12/10$2,089
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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.
Sat 12/278:35 pmBWI - BHD
1 stop12h 40mFinnair
Sun 1/412:10 pmBHD - BWI
1 stop11h 35mFinnair
Deal found 12/10$3,068
This Ovago deal was found by Cheapflights users on 12/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/278:35 pmBWI - BHD
1 stop12h 40mMultiple Airlines
Sun 1/412:10 pmBHD - BWI
1 stop11h 35mMultiple Airlines
Deal found 12/11$4,008
This KLM deal was found by Cheapflights users on 12/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:59 pmBWI - BHD
2 stops16h 51mKLM
Sun 1/46:30 amBHD - BWI
2 stops15h 36mKLM
Deal found 12/11$10,079

Find flight deals from Washington, D.C. to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Round-trip from

$621
(Cheapflightsfares)

One-way from

$252
(Kiwi.com)
From Washington, D.C. (WAS) to Belfast
Search Deals
One-way flight from Washington, D.C. (WAS) to Belfast
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Belfast 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 December 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Belfast that are best for you.

Fly from

Washington, D.C.

Fly to

Belfast

Route

Depart

Return

Price

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

6:35 am-8:55 pm

1 stop18h 20m

$621

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 1/8

9:45 pm-4:40 pm

1 stop13h 55m

Belfast City

Thu 1/22

10:40 am-7:55 pm

1 stop14h 15m

$624

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Thu 1/8

8:35 pm-2:00 pm

1 stop12h 25m

Belfast City

Thu 1/22

11:05 am-6:45 pm

1 stop12h 40m

$641

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 4/8

7:15 pm-1:30 pm

1 stop13h 15m

Belfast City

Sun 4/12

11:00 am-5:25 pm

1 stop11h 25m

$642

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 3/16

7:20 pm-10:40 am

1 stop11h 20m

Belfast City

Sun 3/22

5:35 pm-4:35 pm

1 stop27h 00m

$642

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 3/26

4:23 pm-10:20 am

2 stops13h 57m

Belfast City

Mon 3/30

11:35 am-10:16 pm

2 stops15h 41m

$642

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 2/11

9:45 pm-2:15 pm

1 stop11h 30m

Belfast City

Sun 2/15

9:10 am-3:35 pm

1 stop11h 25m

$644

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 3/4

6:20 pm-10:15 am

1 stop10h 55m

Belfast City

Sun 3/8

5:35 pm-4:35 pm

1 stop27h 00m

$644

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Wed 2/11

8:35 pm-2:15 pm

1 stop12h 40m

Belfast City

Sun 2/15

6:30 am-6:45 pm

1 stop17h 15m

$644

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Wed 2/25

8:35 pm-2:15 pm

1 stop12h 40m

Belfast City

Sun 3/1

10:40 am-6:45 pm

1 stop13h 05m

$644

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 48 results
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Best time to book a flight from Washington, D.C. to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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 Belfast
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated December 12, 2025.
Peruse reviews from past customers who have flown with British Airways from Washington, D.C. to Belfast to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,571 reviews

Comfort

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

Overall

6.7

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
7,571 reviews
British Airways
6.7
Okay
7,571 reviews

Comfort

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

Overall

6.7

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 Belfast. 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 Belfast?

    Airlines like British Airways fly from Washington, D.C. to Belfast in about 11h. The time it takes to get you to your destination can typically vary by up to . The distance between Washington, D.C. and Belfast is about 3390 mi.

  • What is the cheapest airline to fly from Washington, D.C. to Belfast round-trip?

    Cheapflights users have booked flights from Washington, D.C. to Belfast round-trip from $620.

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

    Most travelers choose Washington, D.C. Dulles Intl - Belfast Intl, Baltimore/Washington - Belfast Intl or Washington, D.C. Reagan-National - Belfast Intl when deciding on the best route from Washington, D.C. to Belfast.

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

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

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

    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 Belfast.

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

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

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Belfast Intl flights
Reagan-National to Belfast Intl flights
Dulles Intl to Belfast City flights
Reagan-National to Belfast City flights

Top airline flying from Washington, D.C. to Belfast

Discover the top airline that operate flights from Washington, D.C. to Belfast. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$620Average$844FlexibilityNo cancel feeOn-time70%

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