£171 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 4/5. 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, 0 bags

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
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 25% 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
Booking Insights
Flight Deals

Book Cheap Seattle to Northern Ireland Plane Tickets

 
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, 7 Mar - Wed, 18 Mar
British Airways Logo
18:50 - 19:40
SEA
-
BHD
16h 50m1 stop
British Airways Logo
09:15 - 17:55
BHD
-
SEA
15h 40m1 stop
£432British Airways
Sat, 7 Mar - Wed, 18 Mar
British Airways Logo
18:50 - 16:45
SEA
-
BHD
13h 55m1 stop
British Airways Logo
06:35 - 23:04
BHD
-
SEA
23h 29m2 stops
£446British Airways
Sat, 7 Mar - Wed, 18 Mar
British Airways Logo
18:50 - 19:40
SEA
-
BHD
16h 50m1 stop
British Airways Logo
10:10 - 19:20
BHD
-
SEA
16h 10m2 stops
£449British Airways
Sat, 7 Mar - Tue, 17 Mar
British Airways Logo
13:35 - 11:10
SEA
-
BHD
13h 35m1 stop
British Airways Logo
18:50 - 19:20
BHD
-
SEA
31h 30m2 stops
£451British Airways
Mon, 19 Jan - Fri, 23 Jan
Multiple Airlines Logo
14:35 - 19:05
SEA
-
BFS
20h 30m2 stops
Multiple Airlines Logo
08:05 - 17:00
BFS
-
SEA
16h 55m2 stops
£451Multiple Airlines
Sat, 7 Mar - Tue, 17 Mar
British Airways Logo
18:50 - 21:10
SEA
-
BHD
18h 20m2 stops
British Airways Logo
11:25 - 00:24
BHD
-
SEA
19h 59m2 stops
£481British Airways
Sat, 7 Mar - Wed, 18 Mar
British Airways Logo
13:35 - 16:20
SEA
-
BHD
18h 45m2 stops
British Airways Logo
10:10 - 19:20
BHD
-
SEA
16h 10m2 stops
£486British Airways
Thu, 12 Mar - Sat, 11 Apr
British Airways Logo
19:50 - 18:50
SEA
-
BHD
16h 00m1 stop
British Airways Logo
16:15 - 19:03
BHD
-
SEA
58h 48m2 stops
£491British Airways
Thu, 12 Mar - Sat, 11 Apr
British Airways Logo
19:50 - 18:50
SEA
-
BHD
16h 00m1 stop
British Airways Logo
19:00 - 11:35
BHD
-
SEA
24h 35m1 stop
£493British Airways
Mon, 19 Jan - Fri, 23 Jan
Multiple Airlines Logo
14:35 - 20:15
SEA
-
BFS
21h 40m2 stops
Multiple Airlines Logo
18:00 - 15:40
BFS
-
SEA
29h 40m3 stops
£597Multiple Airlines
Booking Insights

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.

How long does a flight from Seattle to Northern Ireland take?

The duration of a flight to Northern Ireland depends on your arrival airport. The shortest route to Northern Ireland from Seattle is to Belfast, which takes 12h 05m.

Find deals

Good to know - Cheap tickets from Seattle to Northern Ireland

Low seasonApril
Cheapest flight£171
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly and prices are also 9% lower 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)