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

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. Visit our flight page for the latest deals!>/a>

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Washington is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Washington to Belfast?

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 with an airline and back to Washington with another airline. Visit our flight page for the latest deals!>/a>

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

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 from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

£450 CHEAP FLIGHTS from Washington to Belfast

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

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Flight Deals

Cheap Flights from Washington to Belfast

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

Round-trip

One-way

Recent return flight deals from Washington to Belfast

lun., 13 oct. - lun., 20 oct.

15:45 - 17:30SEA-BHD

17h 45m2 stops

06:40 - 20:40BHD-SEA

22h 00m2 stops

£450

Find Deal

lun., 13 oct. - lun., 20 oct.

20:20 - 20:45SEA-BHD

16h 25m1 stop

13:50 - 11:10BHD-SEA

29h 20m1 stop

£479American Airlines

Find Deal

lun., 13 oct. - lun., 20 oct.

16:53 - 17:30SEA-BHD

16h 37m2 stops

13:50 - 11:10BHD-SEA

29h 20m1 stop

£483

Find Deal

mar., 28 oct. - mar., 4 nov.

07:12 - 13:25PDX-BFS

23h 13m2 stops

20:55 - 12:06BFS-PDX

47h 11m2 stops

£501

Find Deal

sáb., 7 mar. - mar., 17 mar.

13:35 - 14:15SEA-BHD

16h 40m1 stop

11:25 - 17:55BHD-SEA

13h 30m1 stop

£517Finnair

Find Deal

sáb., 7 mar. - mié., 18 mar.

13:35 - 14:15SEA-BHD

16h 40m1 stop

11:25 - 00:49BHD-SEA

20h 24m2 stops

£527British Airways

Find Deal

sáb., 7 mar. - mié., 18 mar.

13:34 - 16:45SEA-BHD

19h 11m2 stops

06:35 - 23:08BHD-SEA

23h 33m2 stops

£531British Airways

Find Deal

mié., 1 oct. - mié., 8 oct.

13:30 - 11:55SEA-BHD

14h 25m1 stop

20:15 - 11:35BHD-SEA

23h 20m1 stop

£532British Airways

Find Deal

mié., 8 oct. - dom., 12 oct.

15:19 - 21:15PDX-BHD

21h 56m2 stops

06:30 - 11:00BHD-PDX

12h 30m1 stop

£534Delta

Find Deal

vie., 3 oct. - vie., 10 oct.

17:40 - 21:15SEA-BHD

19h 35m1 stop

06:30 - 16:05BHD-SEA

17h 35m1 stop

£573Delta

Find Deal

Cheapest return fare

£450

Multi-carrier

lun. 13/10lun. 20/10

SEA - BHD • 2 stops

Cheapest one-way flight

Multiple Airlines

lun. 15/9

LHR - BF1 • multi-stop

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to Belfast!

Useful Info

Cheapest flight	£450

Flight from Seattle to Belfast

How does KAYAK find such low prices on flights from Washington to Belfast?
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.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Belfast?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Belfast?
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 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?
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 from 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 to Belfast

Cabin class

Complete your trip

Direct flights

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Origins

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Return flight deals

Cabin class types available on flights to Washington

First Class flights to Belfast

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Prem Econ Class flights to Belfast

Economy class flights to Belfast

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

£450 Find Cheap Flights from Washington to Belfast

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

Cheap Flights from Washington to Belfast

Recent return flight deals from Washington to Belfast

Recent one-way flight deals from Washington to Belfast

Everything you should know

Good to know - Cheap tickets from Washington to Belfast

FAQs for booking flights from Washington to Belfast

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

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.

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

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

What is the Hacker Fare option on flights from Washington to Belfast?

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 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?

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 from 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 to Belfast

Cabin class types available on flights to Washington

Complete your trip to Belfast with a hotel stay or car hire

Find direct flights for Belfast

Flights to other popular destinations

Flights from domestic origins to Belfast

Choose which airport to fly into in Belfast

Find deals for your return flight