£326 Find Cheap Flights from Washington to Belfast Intl Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Belfast Intl departing on 28/5. 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

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Everything you should know

Cheapest return fare
£528
Multiple Airlines
Mon 9/3Sun 15/3
SEA - BFS • 2 stops
Cheapest one-way flight
£326
Multiple Airlines
Thu 28/5
SEA - BFS • 2 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Washington to Belfast Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Washington to Belfast Intl 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 Washington to Belfast Intl

Mon, 9 Mar - Sun, 15 Mar
Multiple Airlines Logo
19:50 - 19:05
SEA
-
BFS
16h 15m
2 stops
Multiple Airlines Logo
22:10 - 12:30
BFS
-
SEA
45h 20m
2 stops
£528Multiple Airlines
Mon, 9 Mar - Sun, 15 Mar
Multiple Airlines Logo
15:35 - 21:30
SEA
-
BFS
22h 55m
3 stops
Multiple Airlines Logo
19:05 - 13:10
BFS
-
SEA
25h 05m
2 stops
£682Multiple Airlines
Mon, 9 Mar - Sun, 15 Mar
Multiple Airlines Logo
15:35 - 21:30
SEA
-
BFS
22h 55m
3 stops
Multiple Airlines Logo
23:05 - 22:16
BFS
-
SEA
30h 11m
3 stops
£706Multiple Airlines
Mon, 9 Mar - Sun, 15 Mar
Multiple Airlines Logo
15:35 - 20:15
SEA
-
BFS
21h 40m
2 stops
Multiple Airlines Logo
23:05 - 18:00
BFS
-
SEA
25h 55m
2 stops
£743Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
16:10 - 22:45
SEA
-
BFS
23h 35m
3 stops
Multiple Airlines Logo
07:50 - 18:05
BFS
-
SEA
41h 15m
3 stops
£941Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
15:00 - 18:55
SEA
-
BFS
20h 55m
2 stops
Multiple Airlines Logo
11:45 - 13:10
BFS
-
SEA
32h 25m
2 stops
£976Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
15:00 - 18:45
SEA
-
BFS
20h 45m
2 stops
Multiple Airlines Logo
07:50 - 18:05
BFS
-
SEA
41h 15m
3 stops
£990Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
14:25 - 15:10
PDX
-
BFS
17h 45m
2 stops
Multiple Airlines Logo
06:30 - 18:00
BFS
-
PDX
18h 30m
2 stops
£1,007Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
14:25 - 13:05
PDX
-
BFS
15h 40m
2 stops
Multiple Airlines Logo
06:30 - 20:25
BFS
-
PDX
20h 55m
3 stops
£1,404Multiple Airlines
Useful Info

Good to know - Cheap tickets from Washington to Belfast Intl Airport

Low seasonApril
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.

FAQs for booking Washington to Belfast Intl Airport flights

  • How does KAYAK find such low prices on flights from Washington to Belfast Intl Airport?

    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 Washington to Belfast Intl Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast Intl Airport from 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 Washington to Belfast Intl Airport?

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

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

    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 to Belfast Intl Airport from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Travelling to a place near Belfast Intl?

Book flights to Belfast Intl if you plan to visit one of these locations
Ballymena
Armagh

Everything you need to know for your flight to Belfast Intl

Information on your arrival and departure airports

Belfast Intl Airport (BFS)