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Cheap flights from Northern Ireland to Seattle from £517

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
19:30 - 14:50BHD  Belfast City-SEA Seattle/Tacoma Intl
27h 20m1 stop London Gatwick
Multiple Airlines Logo
16:50 - 19:00SEA  Seattle/Tacoma Intl-BHD Belfast City
18h 10m1 stop London Heathrow
£517Multiple Airlines
Thu, 19 Nov - Wed, 25 Nov
Multiple Airlines Logo
08:35 - 20:20BHD  Belfast City-SEA Seattle/Tacoma Intl
19h 45m2 stops London Heathrow Chicago O'Hare Intl
Multiple Airlines Logo
07:30 - 10:50SEA  Seattle/Tacoma Intl-BHD Belfast City
19h 20m2 stops Dallas/Fort Worth London Heathrow
£712Multiple Airlines
Mon, 9 Nov - Mon, 23 Nov
Multiple Airlines Logo
09:25 - 20:20BHD  Belfast City-SEA Seattle/Tacoma Intl
18h 55m2 stops London Heathrow Chicago O'Hare Intl
Multiple Airlines Logo
18:45 - 17:25SEA  Seattle/Tacoma Intl-BHD Belfast City
14h 40m1 stop London Heathrow
£719Multiple Airlines
Mon, 9 Nov - Mon, 23 Nov
KLM Logo
17:15 - 11:47BHD  Belfast City-SEA Seattle/Tacoma Intl
26h 32m1 stop Amsterdam Schiphol
KLM Logo
14:35 - 16:45SEA  Seattle/Tacoma Intl-BHD Belfast City
18h 10m1 stop Amsterdam Schiphol
£719KLM
Sun, 8 Nov - Mon, 23 Nov
KLM Logo
17:15 - 11:47BHD  Belfast City-SEA Seattle/Tacoma Intl
26h 32m1 stop Amsterdam Schiphol
KLM Logo
07:27 - 09:10SEA  Seattle/Tacoma Intl-BHD Belfast City
17h 43m2 stops Chicago O'Hare Intl Amsterdam Schiphol
£725KLM
Sun, 8 Nov - Sun, 22 Nov
British Airways Logo
06:35 - 11:25BHD  Belfast City-SEA Seattle/Tacoma Intl
12h 50m1 stop London Heathrow
British Airways Logo
18:45 - 16:55SEA  Seattle/Tacoma Intl-BHD Belfast City
14h 10m1 stop London Heathrow
£729British Airways
Sat, 7 Nov - Wed, 25 Nov
KLM Logo
17:15 - 14:55BHD  Belfast City-SEA Seattle/Tacoma Intl
29h 40m2 stops Amsterdam Schiphol Salt Lake City
KLM Logo
14:35 - 16:45SEA  Seattle/Tacoma Intl-BHD Belfast City
18h 10m1 stop Amsterdam Schiphol
£730KLM
Tue, 10 Nov - Mon, 23 Nov
KLM Logo
17:15 - 11:47BHD  Belfast City-SEA Seattle/Tacoma Intl
26h 32m1 stop Amsterdam Schiphol
KLM Logo
11:45 - 16:45SEA  Seattle/Tacoma Intl-BHD Belfast City
21h 00m2 stops New York John F Kennedy Intl Amsterdam Schiphol
£731KLM
Sun, 8 Nov - Tue, 24 Nov
American Airlines Logo
06:35 - 16:50BHD  Belfast City-SEA Seattle/Tacoma Intl
18h 15m1 stop London Heathrow
American Airlines Logo
06:09 - 10:50SEA  Seattle/Tacoma Intl-BHD Belfast City
20h 41m2 stops Chicago O'Hare Intl London Heathrow
£733American Airlines
Sat, 7 Nov - Tue, 24 Nov
KLM Logo
17:15 - 14:55BHD  Belfast City-SEA Seattle/Tacoma Intl
29h 40m2 stops Amsterdam Schiphol Salt Lake City
KLM Logo
07:27 - 09:10SEA  Seattle/Tacoma Intl-BHD Belfast City
17h 43m2 stops Chicago O'Hare Intl Amsterdam Schiphol
£737KLM
Tue, 10 Nov - Sun, 22 Nov

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KLM flights from Northern Ireland to Seattle

Our best KLM deals on Northern Ireland to Seattle flight tickets
KLM
8 Nov
BHD17:15Belfast City
26h 32m
1 stop
SEA11:47Seattle/Tacoma Intl
23 Nov
SEA14:35Seattle/Tacoma Intl
18h 10m
1 stop
BHD16:45Belfast City
£719
KLM
8 Nov
BHD17:15Belfast City
26h 32m
1 stop
SEA11:47Seattle/Tacoma Intl
22 Nov
SEA07:27Seattle/Tacoma Intl
17h 43m
2 stops
BHD09:10Belfast City
£725
KLM
10 Nov
BHD17:15Belfast City
29h 40m
2 stops
SEA14:55Seattle/Tacoma Intl
23 Nov
SEA14:35Seattle/Tacoma Intl
18h 10m
1 stop
BHD16:45Belfast City
£730

British Airways flights from Northern Ireland to Seattle

Our best British Airways deals on Northern Ireland to Seattle flight tickets
British Airways
7 Nov
BHD06:35Belfast City
12h 50m
1 stop
SEA11:25Seattle/Tacoma Intl
25 Nov
SEA18:45Seattle/Tacoma Intl
14h 10m
1 stop
BHD16:55Belfast City
£729
British Airways
14 Jan
BHD11:05Belfast City
13h 45m
1 stop
SEA16:50Seattle/Tacoma Intl
17 Jan
SEA10:17Seattle/Tacoma Intl
22h 33m
2 stops
BHD16:50Belfast City
£742
British Airways
14 Jan
BHD11:05Belfast City
13h 45m
1 stop
SEA16:50Seattle/Tacoma Intl
17 Jan
SEA10:17Seattle/Tacoma Intl
22h 33m
2 stops
BHD16:50Belfast City
£743

momondo Fare Finder

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

Fly from

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Route

Depart

Return

Price

Cheapest return flight

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 19/11

19:30-14:50

1 stop27h 20m

Seattle/Tacoma Intl

Wed 25/11

16:50-19:00

1 stop18h 10m

£517

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Mon 9/11

08:35-20:20

2 stops19h 45m

Seattle/Tacoma Intl

Mon 23/11

07:30-10:50

2 stops19h 20m

£712

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Mon 9/11

09:25-20:20

2 stops18h 55m

Seattle/Tacoma Intl

Mon 23/11

18:45-17:25

1 stop14h 40m

£719

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Sun 8/11

17:15-11:47

1 stop26h 32m

Seattle/Tacoma Intl

Mon 23/11

14:35-16:45

1 stop18h 10m

£719

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Sun 8/11

17:15-11:47

1 stop26h 32m

Seattle/Tacoma Intl

Sun 22/11

07:27-09:10

2 stops17h 43m

£725
Fastest return journey

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Sat 7/11

06:35-11:25

1 stop12h 50m

Seattle/Tacoma Intl

Wed 25/11

18:45-16:55

1 stop14h 10m

£729

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Tue 10/11

17:15-14:55

2 stops29h 40m

Seattle/Tacoma Intl

Mon 23/11

14:35-16:45

1 stop18h 10m

£730

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Sun 8/11

17:15-11:47

1 stop26h 32m

Seattle/Tacoma Intl

Tue 24/11

11:45-16:45

2 stops21h 00m

£731

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Sat 7/11

06:35-16:50

1 stop18h 15m

Seattle/Tacoma Intl

Tue 24/11

06:09-10:50

2 stops20h 41m

£733

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Tue 10/11

17:15-14:55

2 stops29h 40m

Seattle/Tacoma Intl

Sun 22/11

07:27-09:10

2 stops17h 43m

£737

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
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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

£571

Fastest flight time

13h 45m

Direct flights

None
The best one-way flight to Seattle from Northern Ireland in the past 72 hours is £571. The best return flight deal from Northern Ireland to Seattle found on momondo in the last 72 hours is £517.
The fastest flight from Northern Ireland to Seattle takes 13h 45m
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
Fife
SeaTac
Ashford
Tacoma
Kent
Tukwila

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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