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Find cheap flights from Northern Ireland to Seattle from £573

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 17/4. 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
0 bags
Thu 18/4
Thu 25/4

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Good to know - Cheap tickets from Northern Ireland to Seattle

Low season

February

High season

August

Cheapest flight

£573
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (24% more expensive on average)
Flight from Belfast City Airport 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.

See more FAQs

Prefer to fly direct from Northern Ireland to Seattle?

Find which airlines fly direct from Northern Ireland to Seattle/Tacoma Intl, which days they fly and book direct flights.

Direct departures

Northern Ireland to Seattle/Tacoma Intl

Monday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Tuesday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Wednesday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Thursday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Friday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Saturday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to Northern Ireland

Monday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Tuesday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Wednesday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Thursday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Friday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Saturday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights
See more direct flights

Book cheap flights from Northern Ireland to Seattle

Recent return flight deals

17/4Wed
1 stopAmerican Airlines
12h 45mBHD-SEA
21/4Sun
2 stopsAmerican Airlines
26h 01mSEA-BHD
£573
24/4Wed
2 stopsAmerican Airlines
37h 52mBHD-SEA
28/4Sun
2 stopsAmerican Airlines
29h 56mSEA-BHD
£577
18/4Thu
1 stopAmerican Airlines
27h 15mBHD-SEA
22/4Mon
2 stopsAmerican Airlines
30h 01mSEA-BHD
£603
18/4Thu
2 stopsAmerican Airlines
37h 06mBHD-SEA
22/4Mon
2 stopsAmerican Airlines
32h 26mSEA-BHD
£607
18/4Thu
1 stopAmerican Airlines
12h 55mBHD-SEA
22/4Mon
1 stopAmerican Airlines
15h 00mSEA-BHD
£639
24/4Wed
2 stopsAmerican Airlines
19h 36mBHD-SEA
28/4Sun
1 stopAmerican Airlines
13h 55mSEA-BHD
£660
17/4Wed
1 stopAmerican Airlines
12h 45mBHD-SEA
21/4Sun
1 stopAmerican Airlines
15h 00mSEA-BHD
£696
24/4Wed
1 stopDelta
24h 55mBHD-SEA
28/4Sun
1 stopDelta
19h 20mSEA-BHD
£731
15/6Sat
1 stop
25h 00mBHD-SEA
17/8Sat
1 stop
19h 20mSEA-BHD
£926
15/6Sat
1 stopDelta
25h 00mBHD-SEA
17/8Sat
2 stopsDelta
21h 00mSEA-BHD
£950

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Flights to Seattle, Washington

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Northern Ireland

Cabin classes: