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>

£265 CHEAP FLIGHTS from Washington to Belfast

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

...and more

Travellers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 26% 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

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

Mon, 19 Jan - Thu, 29 Jan

17:45 - 14:15PDX-BHD

12h 30m1 stop

11:05 - 23:32BHD-PDX

20h 27m2 stops

£483Multiple Airlines

Find Deal

Mon, 19 Jan - Thu, 29 Jan

17:45 - 18:35PDX-BHD

16h 50m1 stop

11:05 - 23:32BHD-PDX

20h 27m2 stops

£484British Airways

Find Deal

Wed, 3 Dec - Sun, 7 Dec

15:05 - 16:50SEA-BHD

17h 45m1 stop

17:20 - 11:50BHD-SEA

26h 30m1 stop

£485Virgin Atlantic

Find Deal

Wed, 3 Dec - Wed, 10 Dec

11:35 - 21:00PDX-BHD

25h 25m2 stops

06:30 - 11:25BHD-PDX

12h 55m1 stop

£488Delta

Find Deal

Thu, 4 Dec - Mon, 15 Dec

10:05 - 16:50PDX-BHD

22h 45m2 stops

06:30 - 11:25BHD-PDX

12h 55m1 stop

£489KLM

Find Deal

Wed, 3 Dec - Sun, 7 Dec

15:05 - 16:50SEA-BHD

17h 45m1 stop

17:20 - 20:13BHD-SEA

34h 53m2 stops

£493Virgin Atlantic

Find Deal

Wed, 3 Dec - Wed, 10 Dec

11:35 - 21:00PDX-BHD

25h 25m2 stops

06:30 - 15:33BHD-PDX

17h 03m2 stops

£496Delta

Find Deal

Wed, 3 Dec - Sun, 7 Dec

15:05 - 21:00SEA-BHD

21h 55m1 stop

17:20 - 11:50BHD-SEA

26h 30m1 stop

£526KLM

Find Deal

Sat, 7 Mar - Wed, 18 Mar

15:00 - 16:45SEA-BHD

17h 45m2 stops

09:15 - 23:08BHD-SEA

20h 53m2 stops

£609American Airlines

Find Deal

Fri, 27 Mar - Tue, 31 Mar

19:50 - 17:15SEA-BHD

14h 25m1 stop

06:35 - 23:08BHD-SEA

24h 33m2 stops

£751American Airlines

Find Deal

Cheapest return fare

£483

Multiple Airlines

Mon 19/1Thu 29/1

PDX - BHD • 1 stop

Cheapest one-way flight

£265

Multiple Airlines

Thu 12/3

SEA - BFS • 2 stops

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

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

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Washington

First Class flights to Belfast

Business Class flights to Belfast

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.

£265 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

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