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Cheap flights from Belfast City Airport to Washington from £436

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SEA
29 Mar — 5 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast City to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Belfast City to Washington
Explore the most affordable flight options available from Belfast City to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 February 2026.

Tue 1/909:40
BHD
-
SEA
2 stops21h 18m
British Airways
Tue 22/920:20
SEA
-
BHD
1 stop15h 20m
British Airways
Deal found 26/2£608
Tue 1/920:25
BHD
-
SEA
1 stop30h 00m
Multiple Airlines
Tue 22/920:20
SEA
-
BHD
1 stop14h 35m
Multiple Airlines
Deal found 26/2£625
Tue 9/610:20
BHD
-
SEA
2 stops18h 20m
Multiple Airlines
Sat 20/617:40
SEA
-
BHD
1 stop31h 40m
Multiple Airlines
Deal found 26/2£733
Tue 7/717:30
BHD
-
SEA
2 stops25h 45m
KLM
Fri 17/709:30
SEA
-
BHD
2 stops15h 50m
KLM
Deal found 26/2£770
Tue 7/709:40
BHD
-
SEA
2 stops21h 18m
British Airways
Fri 17/713:35
SEA
-
BHD
1 stop20h 35m
British Airways
Deal found 26/2£778
Sat 7/306:35
BHD
-
SEA
1 stop12h 55m
British Airways
Mon 9/313:37
SEA
-
BHD
2 stops17h 38m
British Airways
Deal found 24/2£829

Find flight deals from Belfast City to Washington

Keep the following information in mind while searching for Belfast City to Washington flight deals. Data was last updated 27 February 2026.

Round-trip from

£733

One-way from

£436
Virgin Atlantic
  • Virgin Atlantic
  • 9/6-20/6
  • 3 total stops
  • 50h 00m total
  • Belfast to Washington
Search Deals
7/3
  • 7/3
  • 3 total stops
  • 36h 20m total
  • Belfast to Washington
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast City 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 858,174 searches. Data last updated 27 February 2026.
Use the filters below to find and compare flights from Belfast City Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 9/6

10:20-20:40

2 stops18h 20m

Seattle/Tacoma Intl

Sat 20/6

17:40-09:20

1 stop31h 40m

£733

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 7/7

17:30-11:15

2 stops25h 45m

Seattle/Tacoma Intl

Fri 17/7

09:30-09:20

2 stops15h 50m

£770

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 7/7

09:40-22:58

2 stops21h 18m

Seattle/Tacoma Intl

Fri 17/7

13:35-18:10

1 stop20h 35m

£778

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 7/7

17:30-11:33

1 stop26h 03m

Seattle/Tacoma Intl

Fri 17/7

17:40-09:20

1 stop31h 40m

£843

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 7/3

12:40-17:00

3 stops36h 20m

£436

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 3/8

19:35-20:31

2 stops32h 56m

£776

Flights are sorted by cheapest return flights first.

Deals found on 23/2

Sorted by cheapest first

Best time to book a flight from Belfast City to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Belfast City with our price prediction graph.
Estimated return 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 City Airport 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 City 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 City Airport to State of Washington?

    Airlines like KLM and British Airways fly from Belfast City Airport to State of Washington in about 21h 18m. The time it takes to get you to your destination can typically vary by up to 4h 27m. There are 4472 mi between Belfast City Airport and State of Washington. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast City 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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How does Cheapflights help users find flights from Belfast City to Washington?

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Can Cheapflights find flights from Belfast City to Washington with no change fees?

Need flexible booking options for your flight to Washington from Belfast City? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Belfast City to Washington become cheaper?

Yes, Cheapflights offers price alerts on Belfast City to Washington flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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