£496 Find Cheap Flights from Belfast to Washington – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Washington departing on 3/1. 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

Save 26% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

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, 3 Sep - Tue, 8 Sep
Multiple Airlines Logo
06:10 - 20:40
BFS
-
SEA
22h 30m
2 stops
Multiple Airlines Logo
19:00 - 21:05
SEA
-
BFS
18h 05m
2 stops
£641Multiple Airlines
Mon, 5 Oct - Fri, 9 Oct
Multiple Airlines Logo
10:35 - 20:14
BFS
-
SEA
17h 39m
1 stop
Multiple Airlines Logo
07:15 - 13:50
SEA
-
BFS
22h 35m
2 stops
£669Multiple Airlines
Mon, 5 Oct - Fri, 9 Oct
Multiple Airlines Logo
08:45 - 20:14
BHD
-
SEA
19h 29m
1 stop
Multiple Airlines Logo
07:15 - 20:30
SEA
-
BHD
29h 15m
2 stops
£680Multiple Airlines
Mon, 5 Oct - Fri, 9 Oct
Multiple Airlines Logo
11:45 - 17:55
BHD
-
SEA
38h 10m
2 stops
Multiple Airlines Logo
15:40 - 20:30
SEA
-
BHD
20h 50m
2 stops
£687Multiple Airlines
Mon, 5 Oct - Fri, 9 Oct
Multiple Airlines Logo
21:35 - 18:32
BFS
-
SEA
28h 57m
3 stops
Multiple Airlines Logo
15:40 - 21:15
SEA
-
BFS
21h 35m
2 stops
£690Multiple Airlines
Thu, 17 Sep - Sun, 20 Sep
British Airways Logo
06:30 - 11:35
BHD
-
SEA
13h 05m
1 stop
British Airways Logo
06:15 - 10:30
SEA
-
BHD
20h 15m
2 stops
£705British Airways
Wed, 25 Nov - Sun, 29 Nov
British Airways Logo
09:15 - 16:50
BHD
-
SEA
15h 35m
1 stop
British Airways Logo
18:45 - 16:50
SEA
-
BHD
14h 05m
1 stop
£706British Airways
Thu, 17 Sep - Sun, 20 Sep
British Airways Logo
06:30 - 11:35
BHD
-
SEA
13h 05m
1 stop
British Airways Logo
06:15 - 10:30
SEA
-
BHD
20h 15m
2 stops
£707British Airways
Mon, 5 Oct - Fri, 9 Oct
Multiple Airlines Logo
06:40 - 21:04
BFS
-
SEA
22h 24m
2 stops
Multiple Airlines Logo
15:40 - 21:15
SEA
-
BFS
21h 35m
2 stops
£707Multiple Airlines
Wed, 26 Aug - Wed, 2 Sep
Multiple Airlines Logo
06:10 - 20:40
BFS
-
SEA
22h 30m
2 stops
Multiple Airlines Logo
19:00 - 20:40
SEA
-
BFS
17h 40m
2 stops
£708Multiple Airlines
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.

How long does a flight from Belfast to Washington take?

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from Belfast is to Seattle, which takes 15h 27m.

Find deals

Good to know - Cheap tickets from Belfast to Washington

Cheapest flight

£496
Flight from Belfast Intl 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.

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.
First Class flights from Belfast to Washington
Business Class flights from Belfast to Washington
Premium Economy Class flights from Belfast to Washington
Economy class flights from Belfast to Washington