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Cheap flights from Glasgow Intl Airport to Seattle from £353

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Glasgow Intl Airport to Seattle departing on 18/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Glasgow Intl Airport to Seattle

Cheap return flights

Enter your travel dates to find the best prices.
Finnair Logo
13:05 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
30h 30m1 stop London Heathrow
Finnair Logo
19:45 - 18:15SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
15h 30m1 stop London Heathrow
£575Finnair
Tue, 6 Oct - Tue, 27 Oct
Icelandair Logo
14:20 - 17:55GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:35 - 09:55SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
11h 20m1 stop Reykjavik Keflavik Intl
£604Icelandair
Tue, 6 Oct - Tue, 27 Oct
Multiple Airlines Logo
16:55 - 20:40GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
35h 45m3 stops Amsterdam Schiphol Stockholm Arlanda Reykjavik Keflavik Intl
Multiple Airlines Logo
15:40 - 08:25SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
32h 45m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Amsterdam Schiphol
£616Multiple Airlines
Fri, 2 Oct - Sat, 10 Oct
Finnair Logo
13:05 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
30h 30m1 stop London Heathrow
Finnair Logo
10:31 - 14:35SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
21h 04m2 stops Chicago O'Hare Intl London Heathrow
£616Finnair
Tue, 6 Oct - Tue, 27 Oct
Finnair Logo
13:05 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
30h 30m1 stop London Heathrow
Finnair Logo
19:45 - 18:15SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
15h 30m1 stop London Heathrow
£616Finnair
Tue, 6 Oct - Tue, 27 Oct
Icelandair Logo
11:55 - 17:00GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 05m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 09:55SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
11h 20m1 stop Reykjavik Keflavik Intl
£627Icelandair
Tue, 24 Nov - Tue, 1 Dec
Icelandair Logo
14:20 - 20:40GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
14h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:40 - 13:25SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
13h 45m1 stop Reykjavik Keflavik Intl
£643Icelandair
Fri, 2 Oct - Sat, 10 Oct
British Airways Logo
09:50 - 16:50GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
15h 00m1 stop London Heathrow
British Airways Logo
18:45 - 18:15SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
15h 30m1 stop London Heathrow
£658British Airways
Tue, 24 Nov - Tue, 1 Dec
British Airways Logo
05:55 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 40m1 stop London Heathrow
British Airways Logo
15:14 - 15:50SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
17h 36m2 stops Chicago O'Hare Intl London Heathrow
£679British Airways
Tue, 6 Oct - Tue, 27 Oct
British Airways Logo
06:35 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 00m1 stop London Heathrow
British Airways Logo
20:20 - 19:35SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
15h 15m1 stop London Heathrow
£680British Airways
Sat, 17 Oct - Tue, 20 Oct

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Virgin Atlantic flights from Glasgow Intl Airport to Seattle

Our best Virgin Atlantic deals on Glasgow Intl Airport to Seattle flight tickets
Virgin Atlantic
6 Oct
GLA06:00Glasgow Intl
16h 12m
2 stops
SEA14:12Seattle/Tacoma Intl
27 Oct
SEA06:00Seattle/Tacoma Intl
23h 45m
2 stops
GLA12:45Glasgow Intl
£692
Virgin Atlantic
1 Jan
GLA05:40Glasgow Intl
16h 20m
2 stops
SEA14:00Seattle/Tacoma Intl
9 Jan
SEA06:00Seattle/Tacoma Intl
19h 55m
2 stops
GLA09:55Glasgow Intl
£699
Virgin Atlantic
17 Oct
GLA06:00Glasgow Intl
18h 48m
2 stops
SEA16:48Seattle/Tacoma Intl
20 Oct
SEA13:42Seattle/Tacoma Intl
18h 28m
2 stops
GLA16:10Glasgow Intl
£702

Iberia flights from Glasgow Intl Airport to Seattle

Our best Iberia deals on Glasgow Intl Airport to Seattle flight tickets
Iberia
6 Oct
GLA19:30Glasgow Intl
34h 27m
2 stops
SEA21:57Seattle/Tacoma Intl
27 Oct
SEA06:12Seattle/Tacoma Intl
20h 38m
2 stops
GLA09:50Glasgow Intl
£657
Iberia
15 Oct
GLA12:40Glasgow Intl
19h 56m
2 stops
SEA00:36Seattle/Tacoma Intl
19 Oct
SEA15:14Seattle/Tacoma Intl
16h 56m
2 stops
GLA16:10Glasgow Intl
£736

momondo Fare Finder

 
Customise your flight search to find flights from Glasgow Intl Airport to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 13 August 2026.
Use the filters below to find and compare flights from Glasgow Intl Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 6/10

13:05-11:35

1 stop30h 30m

Seattle/Tacoma Intl

Tue 27/10

19:45-18:15

1 stop15h 30m

£575
Fastest return journey

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 6/10

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

Tue 27/10

15:35-09:55

1 stop11h 20m

£604

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Fri 2/10

16:55-20:40

3 stops35h 45m

Seattle/Tacoma Intl

Sat 10/10

15:40-08:25

3 stops32h 45m

£616

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 6/10

13:05-11:35

1 stop30h 30m

Seattle/Tacoma Intl

Tue 27/10

10:31-14:35

2 stops21h 04m

£616

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 6/10

13:05-11:35

1 stop30h 30m

Seattle/Tacoma Intl

Tue 27/10

19:45-18:15

1 stop15h 30m

£616

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 24/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Tue 1/12

14:35-09:55

1 stop11h 20m

£627

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Fri 2/10

14:20-20:40

1 stop14h 20m

Seattle/Tacoma Intl

Sat 10/10

15:40-13:25

1 stop13h 45m

£643

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 24/11

09:50-16:50

1 stop15h 00m

Seattle/Tacoma Intl

Tue 1/12

18:45-18:15

1 stop15h 30m

£658

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 6/10

05:55-11:35

1 stop13h 40m

Seattle/Tacoma Intl

Tue 27/10

15:14-15:50

2 stops17h 36m

£679

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 17/10

06:35-11:35

1 stop13h 00m

Seattle/Tacoma Intl

Tue 20/10

20:20-19:35

1 stop15h 15m

£680

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Glasgow Intl Airport to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Glasgow Intl Airport and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from £668 to £1,046.
The lowest price recently found on this route was £575.

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from Glasgow Intl Airport is in February. Flight prices, which tend to average around £0, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Seattle, with average flight prices from Glasgow Intl Airport averaging around £486.

How have Glasgow Intl Airport to Seattle flight prices changed over time?

When to book flights from Glasgow Intl Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Glasgow Intl Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Glasgow Intl Airport to Seattle (GLA to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Glasgow Intl Airport to Seattle

Fastest flight time

11h 35m

Direct flights

None
The fastest flight from Glasgow Intl Airport to Seattle takes 11h 35m
There are no direct flights from Glasgow Intl Airport to Seattle. There are no popular flight routes from Glasgow Intl Airport to Seattle.
Search flight deals

Frequently asked questions about flying from Glasgow Intl Airport to Seattle

  • How far is Glasgow Intl to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 4436.4 mi away from Glasgow Intl. Flights usually cover this in 11h 35m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Glasgow Intl Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Glasgow Intl Airport to Seattle/Tacoma Intl Airport?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Glasgow Intl Airport to Seattle/Tacoma Intl Airport.

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

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Glasgow Intl Airport to Seattle?

Best airlines flying from Glasgow Intl Airport to Seattle

Compare and see reviews for airlines that fly from Glasgow Intl Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £447Free CancellationRating
6.9
730 reviews
Search Icelandair flights
British AirwaysPriceFrom £540Free CancellationRating
6.7
8,162 reviews
Search British Airways flights
Aer LingusPriceFrom £600Free CancellationRating
7.3
1,699 reviews
Search Aer Lingus flights

Travelling to a place near Seattle?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Glasgow.

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

All flight searches from Glasgow to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Glasgow to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Glasgow. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Seattle from Glasgow. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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