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Cheap flights from Belfast City Airport to Washington from £616

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SEA
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 7 November 2025.

Round-trip from

£616
British Airways
  • British Airways
  • 22/4-4/5
  • 2 total stops
  • 27h 55m total
  • Belfast to Washington
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Find flight deals from Belfast City to Washington

Enter your travel dates to find the best prices.

Best flights from Belfast City to Washington
Discover carefully curated flight deals from Belfast City to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 November 2025.

Wed 22/413:50BHD - SEA
1 stop12h 35mBritish Airways
Mon 4/513:35SEA - BHD
1 stop15h 20mBritish Airways
Deal found 5/11£616
Wed 22/406:30BHD - SEA
2 stops17h 43mMultiple Airlines
Mon 4/517:35SEA - BHD
1 stop15h 20mMultiple Airlines
Deal found 5/11£642
Thu 5/315:05BHD - SEA
1 stop28h 25mAmerican Airlines
Mon 9/315:35SEA - BHD
2 stops35h 55mAmerican Airlines
Deal found 5/11£652
Tue 21/406:35BHD - SEA
1 stop13h 00mBritish Airways
Mon 4/513:35SEA - BHD
1 stop18h 05mBritish Airways
Deal found 5/11£624

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 7 November 2025.
Use the filters below to find and compare flights from Belfast City Airport to Washington that are best for you.

Fly from

Belfast City

Fly to

Washington

Route

Depart

Return

Price

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 22/4

13:50-18:25

1 stop12h 35m

Seattle/Tacoma Intl

Mon 4/5

13:35-12:55

1 stop15h 20m

£616

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 21/4

06:35-11:35

1 stop13h 00m

Seattle/Tacoma Intl

Mon 4/5

13:35-15:40

1 stop18h 05m

£624

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 22/4

06:30-16:13

2 stops17h 43m

Seattle/Tacoma Intl

Mon 4/5

17:35-16:55

1 stop15h 20m

£642

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 5/3

15:05-11:30

1 stop28h 25m

Seattle/Tacoma Intl

Mon 9/3

15:35-10:30

2 stops35h 55m

£652

Flights are sorted by cheapest return flights first.

Deals found on 5/11

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 British Airways and American Airlines fly from Belfast City Airport to State of Washington in about 12h 35m. The time it takes to get you to your destination can typically vary by up to 15h 50m. 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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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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