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Cheap flights from Northern Ireland to Seattle from £687

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 - 15:55BFS  Belfast Intl-SEA Seattle/Tacoma Intl
17h 25m2 stops London Gatwick Frankfurt am Main
Multiple Airlines Logo
17:50 - 20:30SEA  Seattle/Tacoma Intl-BFS Belfast Intl
18h 40m2 stops Frankfurt am Main London Gatwick
£687Multiple Airlines
Thu, 26 Nov - Thu, 3 Dec
KLM Logo
17:15 - 11:47BHD  Belfast City-SEA Seattle/Tacoma Intl
26h 32m1 stop Amsterdam Schiphol
KLM Logo
14:35 - 16:35SEA  Seattle/Tacoma Intl-BHD Belfast City
18h 00m1 stop Amsterdam Schiphol
£704KLM
Wed, 11 Nov - Thu, 26 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
£710KLM
Wed, 11 Nov - Thu, 26 Nov
Multiple Airlines Logo
17:15 - 11:47BHD  Belfast City-SEA Seattle/Tacoma Intl
26h 32m1 stop Amsterdam Schiphol
Multiple Airlines Logo
11:45 - 16:45SEA  Seattle/Tacoma Intl-BHD Belfast City
21h 00m2 stops New York John F Kennedy Intl Amsterdam Schiphol
£714Multiple Airlines
Wed, 11 Nov - Wed, 25 Nov
Multiple Airlines Logo
09:40 - 21:58BHD  Belfast City-SEA Seattle/Tacoma Intl
20h 18m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
Multiple Airlines Logo
14:35 - 16:45SEA  Seattle/Tacoma Intl-BHD Belfast City
18h 10m1 stop Amsterdam Schiphol
£715Multiple Airlines
Thu, 12 Nov - Fri, 27 Nov
British Airways Logo
06:30 - 20:20BHD  Belfast City-SEA Seattle/Tacoma Intl
21h 50m2 stops London Heathrow Chicago O'Hare Intl
British Airways Logo
10:33 - 16:55SEA  Seattle/Tacoma Intl-BHD Belfast City
22h 22m2 stops Chicago O'Hare Intl London Heathrow
£717British Airways
Thu, 12 Nov - Thu, 26 Nov
KLM Logo
09:40 - 21:58BHD  Belfast City-SEA Seattle/Tacoma Intl
20h 18m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
KLM Logo
07:27 - 09:10SEA  Seattle/Tacoma Intl-BHD Belfast City
17h 43m2 stops Chicago O'Hare Intl Amsterdam Schiphol
£722KLM
Fri, 13 Nov - Thu, 26 Nov
Multiple Airlines Logo
09:40 - 21:58BHD  Belfast City-SEA Seattle/Tacoma Intl
20h 18m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
Multiple Airlines Logo
11:45 - 16:45SEA  Seattle/Tacoma Intl-BHD Belfast City
21h 00m2 stops New York John F Kennedy Intl Amsterdam Schiphol
£725Multiple Airlines
Thu, 12 Nov - Wed, 25 Nov
British Airways Logo
19:30 - 16:50BHD  Belfast City-SEA Seattle/Tacoma Intl
29h 20m1 stop London Heathrow
British Airways Logo
18:45 - 16:55SEA  Seattle/Tacoma Intl-BHD Belfast City
14h 10m1 stop London Heathrow
£742British Airways
Tue, 10 Nov - Wed, 25 Nov
British Airways Logo
10:00 - 16:50BHD  Belfast City-SEA Seattle/Tacoma Intl
14h 50m1 stop London Heathrow
British Airways Logo
06:09 - 16:55SEA  Seattle/Tacoma Intl-BHD Belfast City
26h 46m2 stops Chicago O'Hare Intl London Heathrow
£743British Airways
Tue, 10 Nov - Thu, 26 Nov

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KLM flights from Northern Ireland to Seattle

Our best KLM deals on Northern Ireland to Seattle flight tickets
KLM
11 Nov
BHD17:15Belfast City
26h 32m
1 stop
SEA11:47Seattle/Tacoma Intl
26 Nov
SEA14:35Seattle/Tacoma Intl
18h 00m
1 stop
BHD16:35Belfast City
£704
KLM
11 Nov
BHD17:15Belfast City
26h 32m
1 stop
SEA11:47Seattle/Tacoma Intl
26 Nov
SEA07:27Seattle/Tacoma Intl
17h 43m
2 stops
BHD09:10Belfast City
£710
KLM
13 Nov
BHD09:40Belfast City
20h 18m
2 stops
SEA21:58Seattle/Tacoma Intl
26 Nov
SEA07:27Seattle/Tacoma Intl
17h 43m
2 stops
BHD09:10Belfast City
£722

British Airways flights from Northern Ireland to Seattle

Our best British Airways deals on Northern Ireland to Seattle flight tickets
British Airways
12 Nov
BHD06:30Belfast City
21h 50m
2 stops
SEA20:20Seattle/Tacoma Intl
26 Nov
SEA10:33Seattle/Tacoma Intl
22h 22m
2 stops
BHD16:55Belfast City
£717
British Airways
10 Nov
BHD19:30Belfast City
29h 20m
1 stop
SEA16:50Seattle/Tacoma Intl
25 Nov
SEA18:45Seattle/Tacoma Intl
14h 10m
1 stop
BHD16:55Belfast City
£742
British Airways
10 Nov
BHD10:00Belfast City
14h 50m
1 stop
SEA16:50Seattle/Tacoma Intl
26 Nov
SEA06:09Seattle/Tacoma Intl
26h 46m
2 stops
BHD16:55Belfast City
£743

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Thu 26/11

06:30-15:55

2 stops17h 25m

Seattle/Tacoma Intl

Thu 3/12

17:50-20:30

2 stops18h 40m

£687

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Wed 11/11

17:15-11:47

1 stop26h 32m

Seattle/Tacoma Intl

Thu 26/11

14:35-16:35

1 stop18h 00m

£704

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Wed 11/11

17:15-11:47

1 stop26h 32m

Seattle/Tacoma Intl

Thu 26/11

07:27-09:10

2 stops17h 43m

£710

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Wed 11/11

17:15-11:47

1 stop26h 32m

Seattle/Tacoma Intl

Wed 25/11

11:45-16:45

2 stops21h 00m

£714

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 12/11

09:40-21:58

2 stops20h 18m

Seattle/Tacoma Intl

Fri 27/11

14:35-16:45

1 stop18h 10m

£715

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 12/11

06:30-20:20

2 stops21h 50m

Seattle/Tacoma Intl

Thu 26/11

10:33-16:55

2 stops22h 22m

£717

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Fri 13/11

09:40-21:58

2 stops20h 18m

Seattle/Tacoma Intl

Thu 26/11

07:27-09:10

2 stops17h 43m

£722

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 12/11

09:40-21:58

2 stops20h 18m

Seattle/Tacoma Intl

Wed 25/11

11:45-16:45

2 stops21h 00m

£725

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Tue 10/11

19:30-16:50

1 stop29h 20m

Seattle/Tacoma Intl

Wed 25/11

18:45-16:55

1 stop14h 10m

£742

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Tue 10/11

10:00-16:50

1 stop14h 50m

Seattle/Tacoma Intl

Thu 26/11

06:09-16:55

2 stops26h 46m

£743

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

£687

Fastest flight time

13h 45m

Direct flights

None
The best flight deal from Northern Ireland to Seattle found on momondo in the last 72 hours is £687
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
Ashford
SeaTac
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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