GLA - SEA

£333 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
£465
Typical prices: £558-£761
Multiple Airlines
Mon 1/10Sun 7/10
GLA - SEA • 2 stops
Cheapest one-way flight
£333
Typical prices: £458-£859
Multiple Airlines
Thu 8/11
GLA - SEA • 2 stops
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 £589 (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

Thu, 1 Oct - Wed, 7 Oct
Multiple Airlines Logo
07:00 - 20:40GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
21h 40m2 stops London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
19:00 - 20:40SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
17h 40m2 stops Reykjavik Keflavik Intl London Gatwick
£465Multiple Airlines
Sat, 17 Oct - Tue, 20 Oct
Icelandair Logo
14:20 - 20:40GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
14h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:00 - 13:25SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
10h 25m1 stop Reykjavik Keflavik Intl
£472Icelandair
Sat, 17 Oct - Tue, 20 Oct
Icelandair Logo
14:20 - 20:40GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
14h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:00 - 13:25SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
10h 25m1 stop Reykjavik Keflavik Intl
£476Icelandair
Thu, 22 Oct - Thu, 29 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
£478Icelandair
Sat, 31 Oct - Sun, 8 Nov
Multiple Airlines Logo
08:50 - 18:05GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
16h 15m1 stop London Luton
Multiple Airlines Logo
18:55 - 20:15SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
17h 20m1 stop London Heathrow
£514Multiple Airlines
Thu, 1 Oct - Wed, 7 Oct
British Airways Logo
08:35 - 17:10GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
16h 35m1 stop Dublin
British Airways Logo
20:20 - 18:45SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
14h 25m1 stop London Heathrow
£528British Airways
Thu, 1 Oct - Sat, 10 Oct
British Airways Logo
08:35 - 17:10GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
16h 35m1 stop Dublin
British Airways Logo
13:30 - 10:50SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
13h 20m1 stop London Heathrow
£529British Airways
Thu, 29 Oct - Thu, 5 Nov
Iberia Logo
11:30 - 17:50GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 20m1 stop London Heathrow
Iberia Logo
07:30 - 09:50SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
18h 20m2 stops Dallas/Fort Worth London Heathrow
£534Iberia
Fri, 16 Oct - Sat, 24 Oct
Aer Lingus Logo
08:35 - 17:10GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
16h 35m1 stop Dublin
Aer Lingus Logo
19:10 - 16:45SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
14h 35m1 stop Dublin
£559Aer Lingus
Fri, 16 Oct - Tue, 20 Oct
Aer Lingus Logo
08:35 - 17:10GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
16h 35m1 stop Dublin
Aer Lingus Logo
19:10 - 19:10SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
16h 00m1 stop Dublin
£560Aer 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.

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.

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Key details for Glasgow Intl Airport to Seattle flights

Low season

February

Cheapest flight

£333
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 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 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

  • 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 £613 return on average, while Sunday is the most expensive at £728, a difference of £114. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pier 66, The Westin Seattle, and Seattle Center. These are among the most viewed places in Seattle on KAYAK.

  • 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 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 £418, which is 26% below the typical average for this route.

  • 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.

  • 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

  • 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 £558 to £761, with an average of £642 over the past 12 months. Anything below £558 counts as a good deal.

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 £613 – about £114 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 £484 return in that month – typically £344 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