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Cheap flights from Northern Ireland to Seattle from £474

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
06:35 - 20:14BFS  Belfast Intl-SEA Seattle/Tacoma Intl
21h 39m1 stop London Stansted
Multiple Airlines Logo
17:30 - 20:15SEA  Seattle/Tacoma Intl-BFS Belfast Intl
18h 45m1 stop London Heathrow
£474Multiple Airlines
Thu, 1 Oct - Wed, 7 Oct
Multiple Airlines Logo
07:00 - 20:40BHD  Belfast City-SEA Seattle/Tacoma Intl
21h 40m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
15:40 - 19:40SEA  Seattle/Tacoma Intl-BHD Belfast City
20h 00m2 stops Reykjavik Keflavik Intl London Gatwick
£487Multiple Airlines
Thu, 1 Oct - Wed, 7 Oct
Multiple Airlines Logo
07:00 - 20:14BHD  Belfast City-SEA Seattle/Tacoma Intl
21h 14m1 stop London Gatwick
Multiple Airlines Logo
17:30 - 19:40SEA  Seattle/Tacoma Intl-BHD Belfast City
18h 10m1 stop London Heathrow
£507Multiple Airlines
Thu, 1 Oct - Wed, 7 Oct
Multiple Airlines Logo
06:10 - 20:40BFS  Belfast Intl-SEA Seattle/Tacoma Intl
22h 30m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
19:00 - 20:30SEA  Seattle/Tacoma Intl-BFS Belfast Intl
17h 30m2 stops Reykjavik Keflavik Intl London Gatwick
£528Multiple Airlines
Thu, 1 Oct - Wed, 7 Oct
British Airways Logo
06:30 - 11:35BHD  Belfast City-SEA Seattle/Tacoma Intl
13h 05m1 stop London Heathrow
British Airways Logo
10:31 - 12:00SEA  Seattle/Tacoma Intl-BHD Belfast City
17h 29m2 stops Chicago O'Hare Intl London Heathrow
£561British Airways
Thu, 1 Oct - Wed, 7 Oct
British Airways Logo
06:30 - 11:35BHD  Belfast City-SEA Seattle/Tacoma Intl
13h 05m1 stop London Heathrow
British Airways Logo
20:20 - 19:25SEA  Seattle/Tacoma Intl-BHD Belfast City
15h 05m1 stop London Heathrow
£597British Airways
Thu, 15 Oct - Mon, 19 Oct
British Airways Logo
09:35 - 18:25BHD  Belfast City-SEA Seattle/Tacoma Intl
16h 50m1 stop London Heathrow
British Airways Logo
15:14 - 15:30SEA  Seattle/Tacoma Intl-BHD Belfast City
16h 16m2 stops Chicago O'Hare Intl London Heathrow
£597British Airways
Thu, 15 Oct - Mon, 19 Oct
British Airways Logo
20:35 - 11:35BHD  Belfast City-SEA Seattle/Tacoma Intl
23h 00m1 stop London Heathrow
British Airways Logo
20:20 - 20:35SEA  Seattle/Tacoma Intl-BHD Belfast City
16h 15m1 stop London Heathrow
£598British Airways
Thu, 15 Oct - Mon, 19 Oct
British Airways Logo
09:35 - 18:25BHD  Belfast City-SEA Seattle/Tacoma Intl
16h 50m1 stop London Heathrow
British Airways Logo
20:20 - 19:25SEA  Seattle/Tacoma Intl-BHD Belfast City
15h 05m1 stop London Heathrow
£598British Airways
Thu, 15 Oct - Mon, 19 Oct
British Airways Logo
06:30 - 11:35BHD  Belfast City-SEA Seattle/Tacoma Intl
13h 05m1 stop London Heathrow
British Airways Logo
06:12 - 12:55SEA  Seattle/Tacoma Intl-BHD Belfast City
22h 43m2 stops Chicago O'Hare Intl London Heathrow
£598British Airways
Thu, 15 Oct - Mon, 19 Oct

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British Airways flights from Northern Ireland to Seattle

Our best British Airways deals on Northern Ireland to Seattle flight tickets
British Airways
15 Oct
BHD06:30Belfast City
13h 05m
1 stop
SEA11:35Seattle/Tacoma Intl
19 Oct
SEA20:20Seattle/Tacoma Intl
15h 05m
1 stop
BHD19:25Belfast City
£597
British Airways
15 Oct
BHD20:35Belfast City
23h 00m
1 stop
SEA11:35Seattle/Tacoma Intl
19 Oct
SEA15:14Seattle/Tacoma Intl
16h 16m
2 stops
BHD15:30Belfast City
£598
British Airways
15 Oct
BHD06:30Belfast City
18h 40m
2 stops
SEA17:10Seattle/Tacoma Intl
19 Oct
SEA15:14Seattle/Tacoma Intl
16h 16m
2 stops
BHD15:30Belfast City
£600

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

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Thu 1/10

06:35-20:14

1 stop21h 39m

Seattle/Tacoma Intl

Wed 7/10

17:30-20:15

1 stop18h 45m

£474

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 1/10

07:00-20:40

2 stops21h 40m

Seattle/Tacoma Intl

Wed 7/10

15:40-19:40

2 stops20h 00m

£487

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 1/10

07:00-20:14

1 stop21h 14m

Seattle/Tacoma Intl

Wed 7/10

17:30-19:40

1 stop18h 10m

£507

BelfastSeattle

BFS Belfast Intl - SEA Seattle/Tacoma Intl

BFSSEA

Belfast Intl

Thu 1/10

06:10-20:40

2 stops22h 30m

Seattle/Tacoma Intl

Wed 7/10

19:00-20:30

2 stops17h 30m

£528

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 1/10

06:30-11:35

1 stop13h 05m

Seattle/Tacoma Intl

Wed 7/10

10:31-12:00

2 stops17h 29m

£561
Fastest return journey

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 15/10

06:30-11:35

1 stop13h 05m

Seattle/Tacoma Intl

Mon 19/10

20:20-19:25

1 stop15h 05m

£597

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 15/10

09:35-18:25

1 stop16h 50m

Seattle/Tacoma Intl

Mon 19/10

15:14-15:30

2 stops16h 16m

£597

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 15/10

20:35-11:35

1 stop23h 00m

Seattle/Tacoma Intl

Mon 19/10

20:20-20:35

1 stop16h 15m

£598

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 15/10

09:35-18:25

1 stop16h 50m

Seattle/Tacoma Intl

Mon 19/10

20:20-19:25

1 stop15h 05m

£598

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 15/10

06:30-11:35

1 stop13h 05m

Seattle/Tacoma Intl

Mon 19/10

06:12-12:55

2 stops22h 43m

£598

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

£474

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 £474
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
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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