GLA - SEA

£325 Find Cheap Flights from Glasgow to Seattle – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£476
Typical prices: £569-£777
Icelandair
Sat 3/11Thu 8/11
GLA - SEA • 1 stop
Cheapest one-way flight
£325
Typical prices: £468-£877
Icelandair
Mon 19/2
GLA - SEA • 1 stop
Direct flights
Not available
There are currently no direct flights between Glasgow Intl Airport and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 25% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Amsterdam Schiphol (AMS)
Cheapest • Avg £601 (return)
Reykjavik Keflavik Intl (KEF)
Shortest trip • 11h 51m (one-way)
Insights
Insights
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We hope you enjoy your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Glasgow to Seattle (GLA-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Glasgow to Seattle

Tue, 3 Nov - Sun, 8 Nov
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
£476Icelandair
Tue, 6 Oct - Tue, 27 Oct
Icelandair Logo
14:20 - 20:40GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
14h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:35 - 09:55SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
11h 20m1 stop Reykjavik Keflavik Intl
£504Icelandair
Thu, 5 Nov - Thu, 12 Nov
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
£507Icelandair
Thu, 5 Nov - Thu, 12 Nov
British Airways Logo
06:00 - 11:25GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 25m1 stop London Heathrow
British Airways Logo
13:40 - 13:05SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
15h 25m1 stop London Heathrow
£539British Airways
Tue, 3 Nov - Sun, 8 Nov
British Airways Logo
12:40 - 00:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
19h 55m2 stops London Heathrow Chicago O'Hare Intl
British Airways Logo
18:45 - 16:40SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
13h 55m1 stop London Heathrow
£542British Airways
Sun, 8 Nov - Wed, 18 Nov
Multiple Airlines Logo
13:25 - 11:47GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
30h 22m1 stop Amsterdam Schiphol
Multiple Airlines Logo
07:15 - 08:30SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
17h 15m2 stops New York John F Kennedy Intl Amsterdam Schiphol
£544Multiple Airlines
Thu, 5 Nov - Thu, 12 Nov
British Airways Logo
06:00 - 11:25GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 25m1 stop London Heathrow
British Airways Logo
14:07 - 15:10SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
17h 03m2 stops Dallas/Fort Worth London Heathrow
£549British Airways
Tue, 6 Oct - Tue, 27 Oct
Delta Logo
06:00 - 11:52GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 52m1 stop Amsterdam Schiphol
Delta Logo
15:25 - 16:30SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
18h 05m1 stop Amsterdam Schiphol
£558Delta
Sat, 17 Oct - Tue, 20 Oct
Aer Lingus Logo
12:00 - 17:10GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 10m1 stop Dublin
Aer Lingus Logo
19:10 - 19:10SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
16h 00m1 stop Dublin
£567Aer Lingus
Sat, 17 Oct - Tue, 20 Oct
Aer Lingus Logo
12:00 - 17:10GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 10m1 stop Dublin
Aer Lingus Logo
19:10 - 19:10SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
16h 00m1 stop Dublin
£629Aer Lingus
Booking Insights

Price, demand, and travel trends for Glasgow Intl Airport to Seattle flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Glasgow Intl Airport to Seattle with more confidence.

How much is a return flight from Glasgow Intl Airport to Seattle?

Return flights from Glasgow Intl Airport to Seattle start at £476. Prices are below average for this route right now, with typical return fares ranging from £569 to £777. The lowest price found in the past 5 days was £476 on Icelandair.

What's the cheapest day of the week to fly from Glasgow Intl Airport to Seattle?

Tuesday is the cheapest day of the week to fly from Glasgow Intl Airport to Seattle and is 5% cheaper than the average day. Sunday is the most expensive day with flight prices 13% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Glasgow Intl Airport to Seattle flights

Low season

February

Cheapest flight

£325
Most popular time to fly (4% more expensive on average)
Flights from Glasgow Intl Airport to Seattle

When to book flights from Glasgow to Seattle

Are your dates flexible? Find out the best times to travel from Glasgow to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Glasgow Intl Airport to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which cabin classes can I book on flights from Glasgow Intl Airport to Seattle?

    Two cabin classes are available on flights from Glasgow Intl Airport to Seattle:

    • Economy class
    • Premium Economy Class

  • How long is a flight from Glasgow Intl Airport to Seattle?

    A direct flight from Glasgow Intl Airport to Seattle takes 0h 00m, covering 4,445 miles.

  • Do I need a passport to fly from Glasgow Intl Airport to Seattle?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Glasgow Intl Airport to Seattle flight?

    Return flights from Glasgow Intl Airport to Seattle range from £569 to £777, with an average of £655 over the past 12 months. Anything below £569 counts as a good deal.

  • How are flight prices from Glasgow Intl Airport to Seattle looking right now?

    One-way fares from Glasgow Intl Airport to Seattle are currently lower than usual. Average one-way flight prices are about £428, which is 26% below the typical average for this route.

  • Which car hire options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around £3 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

  • Which airports can I use when flying from Glasgow Intl Airport to Seattle?

    Flights from Glasgow Intl Airport to Seattle usually depart from Glasgow Intl (GLA) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Glasgow Intl Airport to Seattle pass through?

    One-stop flights from Glasgow Intl Airport to Seattle most commonly connect through:

    • Reykjavik Keflavik Intl (KEF) – 69% of one-stop connections
    • London Heathrow (LHR) – 15% of one-stop connections
    • Dublin (DUB) – 11% of one-stop connections
    • Amsterdam Schiphol (AMS) – 4% of one-stop connections

    Reykjavik Keflavik Intl (KEF) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Glasgow Intl Airport to Seattle?

    Yes. Being flexible with your travel dates can save you up to 16% on the Glasgow Intl Airport to Seattle route. Tuesday is the cheapest departure day at £626 return on average, while Sunday is the most expensive at £742, a difference of £117. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Glasgow Intl Airport to Seattle?

    Flying via Reykjavik Keflavik Intl (KEF) gives the shortest average 1-stop total travel time of 11h 51m, compared to 13h 09m via London Heathrow (LHR) and 13h 15m via Dublin (DUB).

  • What is the time difference between Glasgow Intl Airport and Seattle?

    Seattle is 8 hours behind Glasgow Intl Airport (Pacific Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are The Westin Seattle, Seattle Center, and Seattle Marriott Waterfront. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Glasgow Intl Airport to Seattle flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average £626 – about £117 less than Sunday (16% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Glasgow Intl Airport to Seattle trip for January. Fares historically average £494 return in that month – typically £351 less than the most expensive month, which is August (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Glasgow to Seattle

Complete your trip to Seattle with a hotel stay or car hire

Car hire in Seattle
Hotels in Seattle
Holidays in Seattle