£656 Find Cheap Flights from Belfast to Washington

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Washington departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Washington, as well as popular online travel agencies
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Belfast to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Belfast to Washington

Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
10:40 - 16:55BHD-SEA
14h 15m1 stop
American Airlines Logo
19:50 - 18:35SEA-BHD
15h 45m1 stop
£656American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
06:35 - 23:32BHD-SEA
24h 57m2 stops
American Airlines Logo
07:00 - 14:15SEA-BHD
24h 15m2 stops
£661American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
15:05 - 11:30BHD-SEA
28h 25m1 stop
American Airlines Logo
07:00 - 14:15SEA-BHD
24h 15m2 stops
£662American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
British Airways Logo
09:05 - 16:55BHD-SEA
15h 50m1 stop
British Airways Logo
19:50 - 18:35SEA-BHD
15h 45m1 stop
£665British Airways
Find Deal
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
09:05 - 12:27BHD-SEA
35h 22m2 stops
American Airlines Logo
07:00 - 14:15SEA-BHD
24h 15m2 stops
£666American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Belfast to Washington flights

Get data-powered insights and trends into flights from Belfast to Washington to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly direc between Belfast and Washington?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Belfast to Washington.

There are 2 airlines that fly direct from Belfast to Washington. They are American Airlines and British Airways. The cheapest airline for this route is British Airways, with the best return deal found costing £446 and arriving in Seattle (SEA). On average, British Airways offers the best prices for direct flights between Belfast and Washington.

Which airlines provide the cheapest flights from Belfast to Washington?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest return tickets from Belfast to Washington were found on American Airlines (£656) and British Airways (£665).

Good to know - Cheap tickets from Belfast to Washington

Cheapest flight£656
Flight from Belfast City Airport to Seattle

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Belfast 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 Belfast to Washington.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Belfast 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 Belfast 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 Belfast 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 Belfast 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 Belfast 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 retur flights cost £661 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 £661.

Reviews of the top airlines flying from Belfast to Washington

 
See real verified KAYAK customer reviews for airlines flying from Belfast to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Belfast 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.
7.2
American AirlinesOverall score based on 11034 reviews
7.2Comfort
6.9Entertainment
8.0Crew
7.5Boarding
6.4Food
Airline reviews

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

8.0 ExcellentKohMeng, Oct 2025DFW - LAX
Read more American Airlines reviews

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Nice comfortable flight from Barcelona back to the states. The premium economy offers the extra room we need for my husband. The food was good and our flight attendants were excellent.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

Everything you need to know for your flight from Belfast to Washington

Cabin class types available on flights to Washington

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

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.