GLA - SEA

£284 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
£633
Typical prices: £578-£765
Icelandair
Mon 2/4Sun 22/4
GLA - SEA • 1 stop
Cheapest one-way flight
£284
Typical prices: £464-£878
Multiple Airlines
Wed 18/4
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
January
Cheapest • 15% 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

Fri, 2 Apr - Thu, 22 Apr
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
£633Icelandair
Wed, 7 Apr - Thu, 22 Apr
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
£643Icelandair
Mon, 29 Mar - Thu, 22 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
£646Icelandair
Sun, 2 May - Tue, 4 May
Multiple Airlines Logo
07:55 - 18:45GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
18h 50m2 stops Dublin Calgary
Multiple Airlines Logo
19:10 - 20:50SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
17h 40m1 stop Dublin
£657Multiple Airlines
Mon, 3 May - Tue, 4 May
Multiple Airlines Logo
08:40 - 20:40GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
20h 00m2 stops London Stansted Reykjavik Keflavik Intl
Multiple Airlines Logo
19:10 - 16:50SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
13h 40m1 stop Dublin
£682Multiple Airlines
Sat, 26 Dec - Sat, 9 Jan
British Airways Logo
06:00 - 11:25GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 25m1 stop London Heathrow
British Airways Logo
10:17 - 14:50SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
20h 33m2 stops Chicago O'Hare Intl London Heathrow
£686British Airways
Mon, 3 May - Tue, 4 May
Multiple Airlines Logo
08:40 - 19:10GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
18h 30m1 stop London Stansted
Multiple Airlines Logo
19:10 - 20:50SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
17h 40m1 stop Dublin
£704Multiple Airlines
Thu, 1 Apr - Fri, 23 Apr
British Airways Logo
13:20 - 18:25GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 05m1 stop London Heathrow
British Airways Logo
13:35 - 09:35SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
12h 00m1 stop London Heathrow
£706British Airways
Mon, 30 Nov - Thu, 31 Dec
Aer Lingus Logo
16:05 - 00:42GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
40h 37m2 stops Dublin Chicago O'Hare Intl
Aer Lingus Logo
06:29 - 11:35SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
21h 06m2 stops Chicago O'Hare Intl Dublin
£751Aer Lingus
Sat, 19 Dec - Tue, 19 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
06:06 - 19:05SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
28h 59m2 stops Chicago O'Hare Intl Dublin
£791Aer 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 £578 to £765. The lowest price found in the past 5 days was £633 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 23% higher.

Find deals

Key details for Glasgow Intl Airport to Seattle flights

Low season

February

Cheapest flight

£284
Beat the crowds with an average 85% drop in traveller numbers.
The most popular month to fly with an average 107% 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 £578 to £765, with an average of £660 over the past 12 months. Anything below £578 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 £419, which is 31% 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 averaging £45 for economy cars. Top options include:

    • Europcar
    • Fox
    • 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) – 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 £621 return on average, while Sunday is the most expensive at £818, a difference of £197.

    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 12h 05m, compared to 13h 08m via London Heathrow (LHR) and 13h 17m 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 Saturday departure and avoid flying on Sunday. On this route, Saturday flights average £621, about £197 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 January. Fares historically average £559 return in that month – typically £207 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.

    • 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