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 round-trip 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>

$753 CHEAP FLIGHTS from Northern Ireland to Seattle

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Flight Deals

Cheap Flights from Northern Ireland to Seattle

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Northern Ireland to Seattle 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 round-trip flight deals from Northern Ireland to Seattle

Mon, Sep 15 - Wed, Sep 24

6:40 am - 11:35 amBHD-SEA

12h 55m1 stop

1:30 pm - 1:30 pmSEA-BHD

16h 00m1 stop

$753British Airways

Find Deal

Mon, Sep 15 - Wed, Sep 24

6:40 am - 11:35 amBHD-SEA

12h 55m1 stop

1:30 pm - 1:30 pmSEA-BHD

16h 00m1 stop

$761British Airways

Find Deal

Mon, Sep 15 - Wed, Sep 24

6:40 am - 11:35 amBHD-SEA

12h 55m1 stop

1:30 pm - 11:55 amSEA-BHD

14h 25m1 stop

$764British Airways

Find Deal

Mon, Sep 15 - Wed, Sep 24

6:30 pm - 11:10 amBHD-SEA

24h 40m1 stop

10:11 am - 11:55 amSEA-BHD

17h 44m2 stops

$878British Airways

Find Deal

Mon, Sep 15 - Wed, Sep 24

1:50 pm - 8:09 pmBHD-SEA

38h 19m2 stops

11:05 pm - 11:10 amSEA-BHD

28h 05m2 stops

$884Finnair

Find Deal

Mon, Sep 15 - Wed, Sep 24

1:50 pm - 8:09 pmBHD-SEA

38h 19m2 stops

1:30 pm - 1:30 pmSEA-BHD

16h 00m1 stop

$888Finnair

Find Deal

Mon, Sep 15 - Wed, Sep 24

5:55 pm - 5:50 pmBHD-SEA

31h 55m2 stops

7:35 pm - 7:55 pmSEA-BHD

16h 20m2 stops

$892Aer Lingus

Find Deal

Mon, Sep 15 - Wed, Sep 24

6:40 am - 11:35 amBHD-SEA

12h 55m1 stop

7:48 am - 11:55 amSEA-BHD

20h 07m2 stops

$983

Find Deal

Tue, Oct 14 - Wed, Oct 22

6:35 am - 11:10 amBHD-SEA

12h 35m1 stop

1:30 pm - 1:30 pmSEA-BHD

16h 00m1 stop

$3,862British Airways

Find Deal

Tue, Oct 14 - Wed, Oct 22

8:20 pm - 9:45 pmBHD-SEA

33h 25m2 stops

7:30 am - 12:40 pmSEA-BHD

21h 10m2 stops

$3,864

Find Deal

Useful Info

Low season	May
High season	March
Cheapest flight	$753

Best time to beat the crowds with an average 30% drop in price.

Most popular time to fly and prices are also 16% lower on average.

Flight from Belfast City 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 round-trip 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.

Lynnwood

Centralia

Fife

Westport

Lakewood

Lacey

Mukilteo

Edmonds

Aberdeen

Woodinville

Poulsbo

Shoreline

DuPont

Monroe

Castle Rock

Edgewood

Everything you need to know for your flight to Seattle

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Cabin class

Complete your trip

Direct Flights

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Return flight deals

Information on the airport you'll fly into in Seattle

Seattle (SEA)

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

$753 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 round-trip flight deals from Northern Ireland to Seattle

Recent one-way flight deals from Northern Ireland to Seattle

Good to know

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 round-trip 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.

Traveling to a place near Seattle?

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

Cabin class types available on flights to Northern Ireland

Complete your trip to Seattle with a hotel stay or car rental

Find direct flights for Seattle

Flights to other popular destinations

Flights from domestic origins to Seattle

Choose which airport to fly into in Seattle

Find deals for your return flight