How does KAYAK find such low prices on flights from Northern Ireland to Seattle?

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 Northern Ireland to Seattle. 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 Northern Ireland to Seattle?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Northern Ireland 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 Northern Ireland to Seattle?

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 Seattle with an airline and back to Northern Ireland 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 Northern Ireland to Seattle?

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 Seattle from Northern Ireland 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>

£413 CHEAP FLIGHTS from Northern Ireland to Seattle

SEA

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Cheap Flights from Northern Ireland to Seattle

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

Round-trip

One-way

Recent return flight deals from Northern Ireland to Seattle

Sat, 11 Apr - Sat, 18 Apr

07:00 - 16:00

BFS

SEA

17h 00m

2 stops

15:40 - 22:40

SEA

BFS

23h 00m

3 stops

£674Multiple Airlines

Tue, 9 Jun - Sat, 20 Jun

10:20 - 20:40

BHD

SEA

18h 20m

2 stops

17:40 - 09:20

SEA

BHD

31h 40m

1 stop

£736Multiple Airlines

Sat, 11 Apr - Sat, 18 Apr

06:20 - 16:00

BFS

SEA

17h 40m

2 stops

18:15 - 22:40

SEA

BFS

20h 25m

2 stops

£743Multiple Airlines

Tue, 7 Jul - Fri, 17 Jul

17:30 - 11:15

BHD

SEA

25h 45m

2 stops

09:30 - 09:20

SEA

BHD

15h 50m

2 stops

£773KLM

Tue, 7 Jul - Fri, 17 Jul

09:40 - 22:58

BHD

SEA

21h 18m

2 stops

13:35 - 18:10

SEA

BHD

20h 35m

1 stop

£780British Airways

Tue, 9 Jun - Sat, 20 Jun

09:50 - 11:37

BHD

SEA

33h 47m

1 stop

17:40 - 09:20

SEA

BHD

31h 40m

1 stop

£809Multiple Airlines

Tue, 7 Jul - Fri, 17 Jul

17:30 - 11:33

BHD

SEA

26h 03m

1 stop

17:40 - 09:20

SEA

BHD

31h 40m

1 stop

£846Multiple Airlines

Tue, 9 Jun - Sat, 20 Jun

19:30 - 17:10

BHD

SEA

29h 40m

2 stops

19:10 - 20:55

SEA

BHD

17h 45m

2 stops

£898Aer Lingus

Sat, 11 Apr - Sat, 18 Apr

10:35 - 21:53

BFS

SEA

43h 18m

3 stops

15:40 - 22:40

SEA

BFS

23h 00m

3 stops

£947Multiple Airlines

Useful Info

Low season	January
High season	August
Cheapest flight	£413

Best time to beat the crowds (12% less expensive on average)

Most popular time to fly (14% more expensive on average)

Flight from Belfast Intl Airport to Seattle

How does KAYAK find such low prices on flights from Northern Ireland to Seattle?
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 Northern Ireland to Seattle.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Northern Ireland to Seattle?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Northern Ireland 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 Northern Ireland to Seattle?
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 Seattle with an airline and back to Northern Ireland with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Northern Ireland to Seattle?
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 Seattle from Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

SeaTac

Bothell

Kent

Kirkland

Ashford

Olympia

Federal Way

Issaquah

Marysville

Mukilteo

Lynnwood

Lacey

Renton

Redmond

Ellensburg

Tukwila

Gig Harbor

Aberdeen

Bainbridge Island

Puyallup

Everything you need to know for your flight to Seattle

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Seattle (SEA)

SEA

£674 Find Cheap Flights from Northern Ireland to Seattle

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

Cheap Flights from Northern Ireland to Seattle

Recent return flight deals from Northern Ireland to Seattle

Recent one-way flight deals from Northern Ireland to Seattle

Good to know - Cheap tickets from Northern Ireland to Seattle

FAQs for booking flights from Northern Ireland to Seattle

How does KAYAK find such low prices on flights from Northern Ireland to Seattle?

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 Northern Ireland to Seattle.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Northern Ireland 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 Northern Ireland to Seattle?

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 Seattle with an airline and back to Northern Ireland with another airline.

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

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 Seattle from Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Travelling to a place near Seattle?

Everything you need to know for your flight to Seattle

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Cabin class types available on flights to Northern Ireland

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