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$720+ Cheap flights from Northern Ireland 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SEA
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Northern Ireland to Washington

Best flights from Northern Ireland to Washington
Discover carefully curated flight deals from Northern Ireland to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

This British Airways deal was found by Cheapflights users on 12/24. 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 3/49:15 amBHD - SEA
1 stop15h 40mBritish Airways
Sun 3/87:50 pmSEA - BHD
1 stop14h 00mBritish Airways
Deal found 12/24$720
This British Airways deal was found by Cheapflights users on 12/24. 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.
Thu 3/1910:40 amBHD - SEA
1 stop14h 15mBritish Airways
Mon 3/237:50 pmSEA - BHD
1 stop13h 15mBritish Airways
Deal found 12/24$720

Find flight deals from Northern Ireland to Washington

Keep the following information in mind while searching for Northern Ireland to Washington flight deals. Data was last updated December 26, 2025.

Round-trip from

$720
(British Airways)

One-way from

$453
(Kiwi.com)
From Northern Ireland to Washington
Search Deals
One-way flight from Northern Ireland to Washington
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Northern Ireland 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 26, 2025.
Use the filters below to find and compare flights from Northern Ireland to Washington that are best for you.

Fly from

Northern Ireland

Fly to

Washington

Route

Depart

Return

Price

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 3/4

9:15 am-4:55 pm

1 stop15h 40m

Seattle/Tacoma Intl

Sun 3/8

7:50 pm-4:50 pm

1 stop14h 00m

$720

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/19

10:40 am-5:55 pm

1 stop14h 15m

Seattle/Tacoma Intl

Mon 3/23

7:50 pm-4:05 pm

1 stop13h 15m

$720

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Best time to book a flight from Northern Ireland to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Northern Ireland 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 Northern Ireland 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 Northern Ireland 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 Northern Ireland to State of Washington?

    There are many flights that can get you from Northern Ireland to State of Washington in 15h 40m. Fly via British Airways to get the fastest option. The distance between Northern Ireland and State of Washington is about 4472 mi.

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

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

  • How can I find direct flights from Northern Ireland to Washington?

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland 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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