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.

Cheap Flights from Washington to Belfast Intl Airport (BFS)

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Cheap Flights from Washington to Belfast Intl

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Last minute

Recent return flight deals from Washington to Belfast Intl

Tue, 5 Jan - Mon, 11 Jan

14:35 - 16:10SEA Seattle/Tacoma Intl-BFS Belfast Intl

17h 35m2 stops Reykjavik Keflavik Intl Manchester

14:00 - 17:00BFS Belfast Intl-SEA Seattle/Tacoma Intl

35h 00m2 stops London Stansted Reykjavik Keflavik Intl

£630Multiple Airlines

Tue, 5 Jan - Mon, 11 Jan

18:50 - 20:40SEA Seattle/Tacoma Intl-BFS Belfast Intl

17h 50m1 stop London Heathrow

14:00 - 17:00BFS Belfast Intl-SEA Seattle/Tacoma Intl

35h 00m2 stops London Stansted Reykjavik Keflavik Intl

£645Multiple Airlines

Sun, 18 Oct - Sat, 24 Oct

10:30 - 18:25SEA Seattle/Tacoma Intl-BFS Belfast Intl

23h 55m2 stops Calgary Edinburgh Turnhouse

11:10 - 19:00BFS Belfast Intl-SEA Seattle/Tacoma Intl

15h 50m1 stop London Stansted

£709Multiple Airlines

Tue, 5 Jan - Mon, 11 Jan

14:35 - 20:40SEA Seattle/Tacoma Intl-BFS Belfast Intl

22h 05m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen London Stansted

14:00 - 17:00BFS Belfast Intl-SEA Seattle/Tacoma Intl

35h 00m2 stops London Stansted Reykjavik Keflavik Intl

£737Multiple Airlines

Tue, 5 Jan - Mon, 11 Jan

18:50 - 20:40SEA Seattle/Tacoma Intl-BFS Belfast Intl

17h 50m1 stop London Heathrow

14:00 - 16:40BFS Belfast Intl-SEA Seattle/Tacoma Intl

34h 40m1 stop London Stansted

£740Multiple Airlines

Thu, 15 Oct - Wed, 28 Oct

19:00 - 20:35SEA Seattle/Tacoma Intl-BFS Belfast Intl

17h 35m2 stops Reykjavik Keflavik Intl London Gatwick

21:10 - 16:55BFS Belfast Intl-SEA Seattle/Tacoma Intl

26h 45m3 stops London Luton Barcelona-El Prat Frankfurt am Main

£755Multiple Airlines

Thu, 29 Oct - Thu, 5 Nov

15:35 - 19:10SEA Seattle/Tacoma Intl-BFS Belfast Intl

20h 35m2 stops Reykjavik Keflavik Intl Glasgow Intl

17:40 - 17:00BFS Belfast Intl-SEA Seattle/Tacoma Intl

31h 20m3 stops London Stansted Kastrup Copenhagen Reykjavik Keflavik Intl

£778Multiple Airlines

Sun, 18 Oct - Sat, 24 Oct

15:40 - 21:50SEA Seattle/Tacoma Intl-BFS Belfast Intl

22h 10m2 stops Reykjavik Keflavik Intl Manchester

20:15 - 14:00BFS Belfast Intl-SEA Seattle/Tacoma Intl

25h 45m2 stops London Stansted Munich Franz Josef Strauss

£784Multiple Airlines

Fri, 16 Oct - Fri, 23 Oct

05:50 - 16:30SEA Seattle/Tacoma Intl-BFS Belfast Intl

26h 40m3 stops Vancouver Intl Calgary Edinburgh Turnhouse

08:30 - 20:40BFS Belfast Intl-SEA Seattle/Tacoma Intl

20h 10m2 stops London Gatwick Reykjavik Keflavik Intl

£790Multiple Airlines

Sun, 18 Oct - Sat, 24 Oct

10:30 - 18:25SEA Seattle/Tacoma Intl-BFS Belfast Intl

23h 55m2 stops Calgary Edinburgh Turnhouse

06:55 - 22:47BFS Belfast Intl-SEA Seattle/Tacoma Intl

23h 52m3 stops Edinburgh Turnhouse Calgary Vancouver Intl

£803Multiple Airlines

Useful Info

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.