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$680+ Cheap flights from Belfast to Washington

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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SEA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Belfast to Washington

Best flights from Belfast to Washington
Discover carefully curated flight deals from Belfast to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This British Airways deal was found by Cheapflights users on 12/16. 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 1/2812:25 pmBHD - SEA
1 stop12h 30mBritish Airways
Sun 2/12:04 pmSEA - BHD
2 stops40h 11mBritish Airways
Deal found 12/16$680
This American Airlines deal was found by Cheapflights users on 12/17. 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 1/127:25 pmBHD - SEA
1 stop24h 05mMultiple Airlines
Mon 1/196:50 pmSEA - BHD
1 stop13h 15mMultiple Airlines
Deal found 12/17$695
This American Airlines deal was found by Cheapflights users on 12/17. 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 1/122:40 pmBHD - SEA
2 stops35h 05mAmerican Airlines
Mon 1/198:04 amSEA - BHD
2 stops22h 11mAmerican Airlines
Deal found 12/17$710
This British Airways deal was found by Cheapflights users on 12/16. 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 2/46:35 amBHD - SEA
1 stop18h 20mBritish Airways
Sun 2/86:50 pmSEA - BHD
1 stop14h 00mBritish Airways
Deal found 12/16$715
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Sat 1/318:10 amBFS - SEA
2 stops16h 50mMultiple Airlines
Sat 2/72:35 pmSEA - BFS
2 stops19h 05mMultiple Airlines
Deal found 12/17$751
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Fri 1/308:05 amBFS - SEA
2 stops16h 55mMultiple Airlines
Fri 2/62:35 pmSEA - BFS
2 stops16h 35mMultiple Airlines
Deal found 12/16$913
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1210:20 pmBFS - SEA
2 stops29h 32mMultiple Airlines
Mon 1/1910:15 pmSEA - BFS
1 stop26h 05mMultiple Airlines
Deal found 12/17$998
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Fri 3/276:00 pmBFS - SEA
3 stops33h 45mMultiple Airlines
Fri 4/102:10 pmSEA - BFS
2 stops23h 40mMultiple Airlines
Deal found 12/16$1,227

Find flight deals from Belfast to Washington

Keep the following information in mind while searching for Belfast to Washington flight deals. Data was last updated December 18, 2025.

Round-trip from

$680
(British Airways)
From Belfast to Washington
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belfast to Washington 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 18, 2025.
Use the filters below to find and compare flights from Belfast to Washington that are best for you.

Fly from

Belfast

Fly to

Washington

Route

Depart

Return

Price

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 1/28

12:25 pm-4:55 pm

1 stop12h 30m

Seattle/Tacoma Intl

Sun 2/1

2:04 pm-2:15 pm

2 stops40h 11m

$680

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 1/12

7:25 pm-11:30 am

1 stop24h 05m

Seattle/Tacoma Intl

Mon 1/19

6:50 pm-4:05 pm

1 stop13h 15m

$695

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 1/12

2:40 pm-5:45 pm

2 stops35h 05m

Seattle/Tacoma Intl

Mon 1/19

8:04 am-2:15 pm

2 stops22h 11m

$710

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 2/4

6:35 am-4:55 pm

1 stop18h 20m

Seattle/Tacoma Intl

Sun 2/8

6:50 pm-4:50 pm

1 stop14h 00m

$715

BelfastSeattle

BFS - SEA

BFSSEA

Belfast Intl

Sat 1/31

8:10 am-5:00 pm

2 stops16h 50m

Seattle/Tacoma Intl

Sat 2/7

2:35 pm-5:40 pm

2 stops19h 05m

$751

BelfastSeattle

BFS - SEA

BFSSEA

Belfast Intl

Fri 1/30

8:05 am-5:00 pm

2 stops16h 55m

Seattle/Tacoma Intl

Fri 2/6

2:35 pm-3:10 pm

2 stops16h 35m

$913

BelfastSeattle

BFS - SEA

BFSSEA

Belfast Intl

Mon 1/12

10:20 pm-7:52 pm

2 stops29h 32m

Seattle/Tacoma Intl

Mon 1/19

10:15 pm-8:20 am

1 stop26h 05m

$998

BelfastSeattle

BFS - SEA

BFSSEA

Belfast Intl

Fri 3/27

6:00 pm-8:45 pm

3 stops33h 45m

Seattle/Tacoma Intl

Fri 4/10

2:10 pm-9:50 pm

2 stops23h 40m

$1,227

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Best time to book a flight from Belfast to Washington

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

Related info for your journey

Find useful and relevant information for your journey from Belfast to Washington. 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 Belfast to State of Washington?

    Airlines like British Airways and American Airlines fly from Belfast to State of Washington in about 12h 30m. The time it takes to get you to your destination can typically vary by up to 22h 35m. The distance between Belfast and State of Washington is about 4472 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from Belfast to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to Washington.

  • Can I find deals for business class flights from Belfast to Washington?

    Yes. Cheapflights offers flight deals from Belfast to Washington 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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