£186 Find Cheap Flights from Seattle to Northern Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Northern Ireland departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Northern Ireland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Northern Ireland, as well as popular online travel agencies
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Cheap Flights from Seattle to Northern Ireland

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

Recent return flight deals from Seattle to Northern Ireland

Sat, 6 Sep - Sun, 21 Sep
Logo
19:00 - 21:30SEA-BFS
18h 30m2 stops
Logo
07:00 - 17:50BFS-SEA
42h 50m2 stops
£496
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Sat, 6 Sep - Sun, 21 Sep
Logo
15:45 - 15:55SEA-BHD
16h 10m2 stops
Logo
07:05 - 20:40BHD-SEA
45h 35m2 stops
£501
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Wed, 1 Oct - Wed, 22 Oct
British Airways Logo
15:00 - 15:35SEA-BHD
16h 35m2 stops
British Airways Logo
06:50 - 20:46BHD-SEA
21h 56m2 stops
£564British Airways
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Wed, 1 Oct - Wed, 22 Oct
British Airways Logo
20:20 - 20:45SEA-BHD
16h 25m1 stop
British Airways Logo
06:50 - 20:46BHD-SEA
21h 56m2 stops
£573British Airways
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Wed, 1 Oct - Wed, 22 Oct
British Airways Logo
13:30 - 20:45SEA-BHD
23h 15m1 stop
British Airways Logo
13:50 - 18:20BHD-SEA
12h 30m1 stop
£585British Airways
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Sun, 17 Aug - Sun, 24 Aug
Aer Lingus Logo
19:35 - 09:50SEA-BHD
30h 15m2 stops
Aer Lingus Logo
16:55 - 17:50BHD-SEA
32h 55m2 stops
£606Aer Lingus
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Sat, 16 Aug - Sat, 23 Aug
Logo
19:00 - 22:25SEA-BFS
19h 25m2 stops
Logo
09:40 - 11:25BFS-SEA
33h 45m2 stops
£626
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Wed, 3 Dec - Sun, 7 Dec
Delta Logo
15:00 - 21:00SEA-BHD
22h 00m1 stop
Delta Logo
06:30 - 11:50BHD-SEA
13h 20m1 stop
£629Delta
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Sun, 17 Aug - Sun, 24 Aug
KLM Logo
13:55 - 16:55SEA-BHD
19h 00m1 stop
KLM Logo
17:25 - 11:35BHD-SEA
26h 10m1 stop
£630KLM
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Wed, 3 Dec - Sun, 7 Dec
Delta Logo
07:20 - 21:00SEA-BHD
29h 40m2 stops
Delta Logo
17:20 - 11:50BHD-SEA
26h 30m1 stop
£633Delta
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KAYAK's insights & trends for Seattle to Northern Ireland flights

Get data-powered insights and trends into flights from Seattle to Northern Ireland to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Seattle to Northern Ireland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest return tickets from Seattle to Northern Ireland were found on British Airways (£564) and Aer Lingus (£606).

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Good to know - Cheap tickets from Seattle to Northern Ireland

Low seasonMarch
High seasonJuly
Cheapest flight£186
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly (21% more expensive on average)
Flight from Seattle to Belfast

FAQs - booking Northern Ireland flights

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

    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 Seattle to Northern Ireland.

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Seattle to Northern Ireland with an airline and back with another airline.

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

    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 from Seattle to Northern Ireland 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 from Seattle to Northern Ireland

Information on your arrival and departure airports

Seattle (SEA)

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