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Cheap flights from Seattle to Glasgow Intl Airport from £218

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
13 Jun — 20 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Glasgow Intl

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Glasgow Intl
Explore the most affordable flight options available from Seattle to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 May 2026.

Wed 10/605:45
SEA
-
GLA
3 stops19h 55m
Multiple Airlines
Wed 17/607:45
GLA
-
SEA
3 stops45h 15m
Multiple Airlines
Deal found 14/5£574
Sun 1/1114:35
SEA
-
GLA
1 stop11h 20m
Icelandair
Fri 13/1111:55
GLA
-
SEA
1 stop13h 05m
Icelandair
Deal found 13/5£598
Wed 28/1015:35
SEA
-
GLA
1 stop11h 20m
Icelandair
Tue 10/1111:55
GLA
-
SEA
1 stop13h 05m
Icelandair
Deal found 11/5£608
Mon 5/1015:40
SEA
-
GLA
1 stop13h 45m
Icelandair
Thu 15/1014:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 13/5£609
Mon 5/1019:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Mon 26/1013:25
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 12/5£610
Fri 9/1019:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Sat 17/1014:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 13/5£612
Mon 21/915:40
SEA
-
GLA
1 stop13h 45m
Icelandair
Tue 6/1014:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 14/5£613
Sun 27/919:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Sun 4/1014:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 13/5£615
Mon 3/815:40
SEA
-
GLA
1 stop13h 45m
Icelandair
Thu 20/814:20
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 12/5£619
Wed 5/819:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Sun 23/814:20
GLA
-
SEA
1 stop29h 25m
Icelandair
Deal found 13/5£620

Find flight deals from Seattle to Glasgow Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Glasgow Intl (GLA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 May 2026.

Round-trip from

£574

One-way from

£218

Popular in

July

Cheapest in

February

Average price

£592
10/6-17/6
  • 10/6-17/6
  • 6 total stops
  • 65h 10m total
  • Seattle to Glasgow
Search Deals
1/11
  • 1/11
  • 3 total stops
  • 47h 05m total
  • Seattle to Glasgow
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£91 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to Glasgow Intl 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, Cheapflights users made 858,174 searches. Data last updated 14 May 2026.
Use the filters below to find and compare flights from Seattle to Glasgow Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 28/9

13:00-10:10

1 stop13h 10m

Glasgow Intl

Thu 1/10

14:00-21:55

1 stop15h 55m

£668

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 6/9

09:50-16:10

2 stops22h 20m

Glasgow Intl

Wed 16/9

09:10-16:35

1 stop15h 25m

£670

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 5/10

05:00-10:10

2 stops21h 10m

Glasgow Intl

Thu 15/10

14:00-10:00

2 stops28h 00m

£670

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 16/8

07:20-12:55

2 stops21h 35m

Glasgow Intl

Thu 20/8

06:00-11:37

1 stop13h 37m

£671

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 17/8

07:00-10:10

2 stops19h 10m

Glasgow Intl

Thu 27/8

14:00-23:44

1 stop17h 44m

£671

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 16/8

23:00-10:10

2 stops27h 10m

Glasgow Intl

Thu 20/8

14:00-09:36

2 stops27h 36m

£671

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 25/8

05:10-08:25

2 stops19h 15m

Glasgow Intl

Tue 1/9

06:00-19:00

2 stops21h 00m

£677

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 12/8

07:30-10:10

1 stop18h 40m

Glasgow Intl

Tue 18/8

14:00-09:36

2 stops27h 36m

£683

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 3/8

07:20-12:55

2 stops21h 35m

Glasgow Intl

Thu 20/8

06:00-11:37

1 stop13h 37m

£714

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 22/8

11:21-12:55

2 stops17h 34m

Glasgow Intl

Fri 28/8

06:00-16:40

2 stops18h 40m

£715

Flights are sorted by cheapest return flights first.

Deals found on 14/5

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Seattle to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Glasgow Intl Airport

How far ahead should I book a flight from Seattle to Glasgow Intl Airport?

To ensure you get the cheapest price possible for a flight from Seattle to Glasgow Intl Airport, you should look to book at least 25 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Glasgow Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of £485). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £750). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Seattle to Glasgow Intl Airport?

Reviews of airlines servicing Glasgow Intl

Get insights into the airlines that provide service to Glasgow Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Glasgow Intl. Reviews last updated 14 May 2026.
See what other customers who have flown with Icelandair from Seattle to Glasgow Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
654 reviews
Check prices

Food

6.2

Overall

7.0

Comfort

6.9

Boarding

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Ásmundur,Apr 2026

CDG - KEF

The flight was uneventfull and ahead of schedule. The crew was attentive and the service good.
Icelandair
7.0
Good
654 reviews
Icelandair
7.0
Good
654 reviews
Check prices

Food

6.2

Overall

7.0

Comfort

6.9

Boarding

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Ásmundur,Apr 2026

CDG - KEF

The flight was uneventfull and ahead of schedule. The crew was attentive and the service good.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Glasgow Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Glasgow Intl?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Glasgow Intl. On average, Seattle/Tacoma Intl has 0 outbound flights to Glasgow Intl per day from 1 airline. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

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

    A quick flight from Seattle to Glasgow Intl Airport can take about 12h 20m. Finnair provides one of the quickest options available for as low as £659. There are 4445 mi between Seattle and Glasgow Intl Airport. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to Glasgow Intl Airport round-trip?

    Our cheapest airline available from Seattle to Glasgow Intl Airport is Icelandair. Our recent data shows that you can find tickets from as low as £422 on this airline. Icelandair is currently priced 26% below the average price you’ll pay for this route.

  • Can I find deals for flights from Seattle to Glasgow Intl that include hotel bookings?

    Yes. In addition to deals on Seattle to Glasgow Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Glasgow Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Glasgow Intl.

  • Can I find deals for business class flights from Seattle to Glasgow Intl?

    Yes. Cheapflights offers flight deals from Seattle to Glasgow Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Glasgow Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of £485). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £750). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Glasgow Intl Airport?

Book flights to Glasgow Intl Airport if you plan to visit one of these locations
Paisley
Kilmarnock
Dunoon
Dumbarton
Arrochar
Clydebank
East Kilbride
Largs
Renfrew
Inveraray
Rothesay
Alexandria
Tarbert
Balloch

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Glasgow Intl

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Glasgow Intl flights
Spokane to Glasgow Intl flights

Top airline flying from Seattle to Glasgow Intl

Discover the top airline that operate flights from Seattle to Glasgow Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£422Average£540FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Glasgow Intl?

When you search for this flight from Seattle to Glasgow Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Glasgow Intl?

Cheapflights simply makes it quick and affordable to book flights from Seattle to Glasgow Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Seattle to Glasgow Intl with no change fees?

Certainly. Search results for flights to Glasgow Intl from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to Glasgow Intl become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Glasgow Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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