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Cheap flights from Northern Ireland to Seattle from £534

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Northern Ireland to Seattle

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 18:00BFS  Belfast Intl-SEA Seattle/Tacoma Intl
18h 30m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
14:35 - 20:30SEA  Seattle/Tacoma Intl-BFS Belfast Intl
21h 55m2 stops Reykjavik Keflavik Intl London Gatwick
£534Multiple Airlines
Thu, 29 Oct - Thu, 5 Nov
Multiple Airlines Logo
07:00 - 18:00BFS  Belfast Intl-SEA Seattle/Tacoma Intl
18h 00m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
14:35 - 20:10SEA  Seattle/Tacoma Intl-BFS Belfast Intl
21h 35m2 stops Reykjavik Keflavik Intl London Gatwick
£678Multiple Airlines
Tue, 27 Oct - Tue, 3 Nov
Multiple Airlines Logo
09:25 - 15:12BFS  Belfast Intl-SEA Seattle/Tacoma Intl
36h 47m3 stops London Gatwick Orlando Denver Intl
Multiple Airlines Logo
14:35 - 22:35SEA  Seattle/Tacoma Intl-BFS Belfast Intl
24h 00m2 stops Reykjavik Keflavik Intl Manchester
£740Multiple Airlines
Fri, 30 Oct - Fri, 6 Nov
Multiple Airlines Logo
09:25 - 15:12BFS  Belfast Intl-SEA Seattle/Tacoma Intl
36h 47m3 stops London Gatwick Orlando Denver Intl
Multiple Airlines Logo
14:35 - 22:00SEA  Seattle/Tacoma Intl-BFS Belfast Intl
23h 25m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Edinburgh Turnhouse
£772Multiple Airlines
Fri, 30 Oct - Fri, 6 Nov
Multiple Airlines Logo
07:00 - 18:00BFS  Belfast Intl-SEA Seattle/Tacoma Intl
18h 00m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
11:26 - 20:10SEA  Seattle/Tacoma Intl-BFS Belfast Intl
24h 44m3 stops Vancouver Intl Reykjavik Keflavik Intl London Gatwick
£812Multiple Airlines
Tue, 27 Oct - Tue, 3 Nov
Multiple Airlines Logo
10:10 - 18:54BFS  Belfast Intl-SEA Seattle/Tacoma Intl
39h 44m3 stops Amsterdam Schiphol Casablanca Mohamed V Los Angeles
Multiple Airlines Logo
14:35 - 20:20SEA  Seattle/Tacoma Intl-BFS Belfast Intl
21h 45m2 stops Reykjavik Keflavik Intl Manchester
£830Multiple Airlines
Thu, 29 Oct - Wed, 4 Nov
Multiple Airlines Logo
10:10 - 18:54BFS  Belfast Intl-SEA Seattle/Tacoma Intl
39h 44m3 stops Amsterdam Schiphol Casablanca Mohamed V Los Angeles
Multiple Airlines Logo
16:05 - 20:30SEA  Seattle/Tacoma Intl-BFS Belfast Intl
20h 25m2 stops Paris Charles de Gaulle London Gatwick
£889Multiple Airlines
Thu, 29 Oct - Thu, 5 Nov
Multiple Airlines Logo
17:35 - 18:10BFS  Belfast Intl-SEA Seattle/Tacoma Intl
31h 35m2 stops Paris Charles de Gaulle Istanbul
Multiple Airlines Logo
14:35 - 22:35SEA  Seattle/Tacoma Intl-BFS Belfast Intl
24h 00m2 stops Reykjavik Keflavik Intl Manchester
£901Multiple Airlines
Fri, 30 Oct - Fri, 6 Nov
Multiple Airlines Logo
06:30 - 18:00BFS  Belfast Intl-SEA Seattle/Tacoma Intl
18h 30m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
15:25 - 19:05SEA  Seattle/Tacoma Intl-BFS Belfast Intl
19h 40m1 stop Paris Charles de Gaulle
£930Multiple Airlines
Thu, 29 Oct - Wed, 4 Nov
Multiple Airlines Logo
06:30 - 18:00BFS  Belfast Intl-SEA Seattle/Tacoma Intl
18h 30m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
14:35 - 20:20SEA  Seattle/Tacoma Intl-BFS Belfast Intl
21h 45m2 stops Reykjavik Keflavik Intl Manchester
£942Multiple Airlines
Thu, 29 Oct - Wed, 4 Nov

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Use the filters below to find and compare flights from Northern Ireland to Seattle that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Thu 29/10

06:30-18:00

2 stops18h 30m

Seattle/Tacoma Intl

Thu 5/11

14:35-20:30

2 stops21h 55m

£534

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Tue 27/10

07:00-18:00

2 stops18h 00m

Seattle/Tacoma Intl

Tue 3/11

14:35-20:10

2 stops21h 35m

£678

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Fri 30/10

09:25-15:12

3 stops36h 47m

Seattle/Tacoma Intl

Fri 6/11

14:35-22:35

2 stops24h 00m

£740

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Fri 30/10

09:25-15:12

3 stops36h 47m

Seattle/Tacoma Intl

Fri 6/11

14:35-22:00

3 stops23h 25m

£772

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Tue 27/10

07:00-18:00

2 stops18h 00m

Seattle/Tacoma Intl

Tue 3/11

11:26-20:10

3 stops24h 44m

£812

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Thu 29/10

10:10-18:54

3 stops39h 44m

Seattle/Tacoma Intl

Wed 4/11

14:35-20:20

2 stops21h 45m

£830

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Thu 29/10

10:10-18:54

3 stops39h 44m

Seattle/Tacoma Intl

Thu 5/11

16:05-20:30

2 stops20h 25m

£889

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Fri 30/10

17:35-18:10

2 stops31h 35m

Seattle/Tacoma Intl

Fri 6/11

14:35-22:35

2 stops24h 00m

£901
Fastest return journey

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Thu 29/10

06:30-18:00

2 stops18h 30m

Seattle/Tacoma Intl

Wed 4/11

15:25-19:05

1 stop19h 40m

£930

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Thu 29/10

06:30-18:00

2 stops18h 30m

Seattle/Tacoma Intl

Wed 4/11

14:35-20:20

2 stops21h 45m

£942

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheap Northern Ireland to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Seattle

Best price found

£534

Fastest flight time

13h 40m

Direct flights

None
The best flight deal from Northern Ireland to Seattle found on momondo in the last 72 hours is £534
The fastest flight from Northern Ireland to Seattle takes 13h 40m
There are no direct flights from Northern Ireland to Seattle. There are no popular flight routes from Northern Ireland to Seattle.
Search flight deals

Frequently asked questions about flying from Northern Ireland to Seattle

  • When did momondo last update prices for flights from Northern Ireland to Seattle/Tacoma Intl Airport?

    Prices for flights from Northern Ireland to Seattle/Tacoma Intl Airport refresh daily.

  • How old do you have to be to fly from Northern Ireland to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Northern Ireland to Seattle

  • How do I get Price Alerts for flights from Northern Ireland to Seattle?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Northern Ireland from Seattle. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Northern Ireland to Seattle with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Westport
Kirkland
Ashford
Tacoma
SeaTac
Kent
Tukwila
Fife

Why use momondo?

Why should I use momondo to find a flight deal from Northern Ireland to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Northern Ireland to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Northern Ireland to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Northern Ireland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Northern Ireland to Seattle?

momondo helps you find the best flight between Northern Ireland and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Northern Ireland to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Northern Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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