£661 Find Cheap Flights from Northern Ireland to Washington

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Good to know - Cheap tickets from Northern Ireland to Washington

Low season

January

High season

August

Cheapest flight

£661
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (36% more expensive on average)
Flight from Belfast City Airport to Seattle

FAQs for booking flights from Northern Ireland to Washington

  • How does KAYAK find such low prices on flights from Northern Ireland to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Northern Ireland to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Northern Ireland to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Northern Ireland to Washington is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Northern Ireland to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Northern Ireland to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Northern Ireland to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Northern Ireland to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington?

    The cheapest time of day to fly to Washington is generally in the morning, when round-trip flights cost £870 on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is £870.

  • How long is the flight to Washington?

    An average direct flight from Northern Ireland to Washington takes 13h 00m, covering a distance of 4466 miles. The shortest route is Belfast City Airport (BHD) to Seattle (SEA) with an average flight time of 13h 00m.

  • What is the most popular destination in Washington?

    Based on KAYAK flight searches, the most popular destination is Seattle (100% of total searches to Washington).

Top airline flying from Northern Ireland to Washington

Need help choosing which airline to fly with from Northern Ireland to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.6
British AirwaysOverall score based on 6837 reviews
6.4Entertainment
6.8Boarding
6.7Comfort
6.3Food
7.6Crew
Airline reviews

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

6.0 GoodLorrie, Apr 2025LHR - PDX
Read more British Airways reviews

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

Book cheap flights from Northern Ireland to Washington

Recent return flight deals

9/5Fri
1 stopKLM
13h 10mBHD-SEA
30/5Fri
1 stopKLM
23h 20mSEA-BHD
£661
21/5Wed
1 stopKLM
17h 27mBHD-SEA
30/5Fri
1 stopKLM
19h 08mSEA-BHD
£668
21/5Wed
2 stopsKLM
16h 01mBHD-SEA
30/5Fri
1 stopKLM
23h 20mSEA-BHD
£673
9/5Fri
2 stopsDelta
20h 17mBHD-SEA
30/5Fri
1 stopDelta
19h 00mSEA-BHD
£677
17/5Sat
1 stopKLM
17h 27mBHD-SEA
24/5Sat
1 stopKLM
14h 48mSEA-BHD
£696
17/5Sat
2 stopsDelta
18h 06mBHD-SEA
24/5Sat
1 stopDelta
14h 48mSEA-BHD
£702
17/5Sat
2 stopsDelta
20h 16mBHD-SEA
24/5Sat
2 stopsDelta
21h 00mSEA-BHD
£726
21/5Wed
2 stops
21h 53mBHD-SEA
30/5Fri
2 stops
23h 45mSEA-BHD
£766
9/5Fri
2 stopsBritish Airways
19h 14mBHD-SEA
30/5Fri
2 stopsBritish Airways
17h 10mSEA-BHD
£800

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Recent one-way flight deals

30/7Wed
2 stopsAer Lingus
19h 00mBHD-SEA
£807
30/7Wed
1 stop
23h 20mBHD-SEA
£890

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Everything you need to know for your flight to Washington

Cabin class types available on flights to Northern Ireland

Cabin classes available on flights to Northern Ireland. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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