GLA - SEA

£358 Find Cheap Flights from Glasgow to Seattle – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£656
Typical prices: £576-£768
Icelandair
Sat 31/3Sun 29/4
GLA - SEA • 1 stop
Cheapest one-way flight
£344
Typical prices: £465-£861
Multiple Airlines
Wed 11/4
GLA - SEA • 3 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
November
Cheapest • 21% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Reykjavik Keflavik Intl (KEF)
Cheapest • Avg £645 (return)
London Heathrow (LHR)
Shortest trip • 13h 08m (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

Wed, 31 Mar - Thu, 29 Apr
Icelandair Logo
14:20 - 17:55GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:00 - 13:25SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
10h 25m1 stop Reykjavik Keflavik Intl
£656Icelandair
Wed, 31 Mar - Tue, 27 Apr
Icelandair Logo
14:20 - 17:55GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:40 - 13:25SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
13h 45m1 stop Reykjavik Keflavik Intl
£656Icelandair
Thu, 12 Nov - Mon, 16 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
£660Icelandair
Thu, 1 Apr - Wed, 28 Apr
British Airways Logo
07:00 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
12h 35m1 stop London Heathrow
British Airways Logo
20:20 - 18:45SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
14h 25m1 stop London Heathrow
£696British Airways
Thu, 8 Apr - Fri, 23 Apr
British Airways Logo
07:00 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
12h 35m1 stop London Heathrow
British Airways Logo
20:20 - 20:15SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
15h 55m1 stop London Heathrow
£696British Airways
Sat, 16 Jan - Sat, 13 Feb
British Airways Logo
06:35 - 11:25GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
12h 50m1 stop London Heathrow
British Airways Logo
13:40 - 10:50SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
13h 10m1 stop London Heathrow
£699British Airways
Thu, 8 Apr - Fri, 23 Apr
KLM Logo
09:05 - 16:20GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
15h 15m1 stop Amsterdam Schiphol
KLM Logo
17:45 - 16:20SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
14h 35m2 stops Salt Lake City Amsterdam Schiphol
£711KLM
Thu, 1 Apr - Wed, 28 Apr
Multiple Airlines Logo
07:05 - 19:10GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
20h 05m1 stop London Stansted
Multiple Airlines Logo
19:00 - 09:35SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
30h 35m2 stops Reykjavik Keflavik Intl London Gatwick
£712Multiple Airlines
Sat, 12 Dec - Sat, 19 Dec
Aer Lingus Logo
13:15 - 00:47GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
19h 32m2 stops Dublin Chicago O'Hare Intl
Aer Lingus Logo
23:59 - 12:45SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
28h 46m2 stops Chicago O'Hare Intl Dublin
£893Aer Lingus
Wed, 23 Dec - Sun, 3 Jan
Aer Lingus Logo
12:05 - 21:38GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
41h 33m2 stops Dublin Chicago O'Hare Intl
Aer Lingus Logo
06:29 - 12:45SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
22h 16m2 stops Chicago O'Hare Intl Dublin
£899Aer 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 with more confidence.

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

Return flights from Glasgow Intl Airport to Seattle typically range from £576 to £768. The lowest price found in the past 5 days was £656 on Icelandair.

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

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Glasgow Intl Airport to Seattle. It's 6% cheaper than the average day, while Sunday is the most expensive, with prices 24% higher.

Find deals

Key details for Glasgow Intl Airport to Seattle flights

Low season

February

Cheapest flight

£344
Beat the crowds with an average 85% drop in traveller numbers.
The most popular month to fly with an average 111% increase in traveller numbers.
One-way flight 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 answers about this route, including flight times, airports, airlines, and booking tips.

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

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

    • Economy class
    • Premium Economy Class
    • Business Class

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

    A direct flight from Glasgow Intl Airport to Seattle takes 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 £576 to £768, with an average of £656 over the past 12 months. Anything below £576 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 £422, which is 28% 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 £46 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • 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) – 65% of one-stop connections
    • London Heathrow (LHR) – 20% of one-stop connections
    • Dublin (DUB) – 12% of one-stop connections
    • Amsterdam Schiphol (AMS) – 3% of one-stop connections

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

    Yes. Flexible dates can save you up to 25% on flights from Glasgow Intl Airport to Seattle. Saturday is the cheapest departure day at £619 return on average, while Sunday is the most expensive at £816, a difference of £196.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • 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 52m, compared to 13h 08m via London Heathrow (LHR) and 13h 15m via Dublin (DUB).

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

    Seattle is 7 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 Saturday departure and avoid flying on Sunday. On this route, Saturday flights average £619, about £196 less than Sunday fares (24% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Glasgow Intl Airport to Seattle trip for November. Fares historically average £517 return in that month – typically £251 less than the most expensive month, which is December (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.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • 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