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Cheap flights from Seattle to Glasgow Intl Airport from £181

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
14 Apr — 21 Apr1
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 15 March 2026.

Tue 7/419:00
SEA
-
GLA
1 stop10h 25m
Multiple Airlines
Tue 28/408:20
GLA
-
SEA
2 stops33h 20m
Multiple Airlines
Deal found 12/3£444
Tue 21/419:00
SEA
-
GLA
1 stop10h 25m
Multiple Airlines
Mon 27/421:45
GLA
-
SEA
2 stops43h 55m
Multiple Airlines
Deal found 11/3£487
Tue 21/415:40
SEA
-
GLA
1 stop13h 45m
Icelandair
Mon 27/414:20
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 11/3£539
Tue 7/419:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Tue 28/414:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 12/3£540
Mon 5/1015:40
SEA
-
GLA
1 stop13h 45m
Icelandair
Thu 15/1014:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 15/3£544
Mon 6/419:00
SEA
-
GLA
1 stop10h 25m
Multiple Airlines
Mon 20/407:10
GLA
-
SEA
2 stops39h 09m
Multiple Airlines
Deal found 12/3£544
Tue 29/919:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Tue 20/1014:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 11/3£557
Sat 19/919:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Wed 23/914:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 15/3£558
Wed 28/1015:35
SEA
-
GLA
1 stop11h 20m
Icelandair
Tue 10/1111:55
GLA
-
SEA
1 stop13h 05m
Icelandair
Deal found 13/3£559
Sun 4/1015:40
SEA
-
GLA
1 stop13h 45m
Icelandair
Mon 12/1014:20
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 12/3£562

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 15 March 2026.

Round-trip from

£444

One-way from

£181

Popular in

July

Cheapest in

February

Average price

£527
7/4-28/4
  • 7/4-28/4
  • 3 total stops
  • 43h 45m total
  • Seattle to Glasgow
Search Deals
7/5
  • 7/5
  • 3 total stops
  • 41h 45m total
  • Seattle to Glasgow
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£73 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 March 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 15 March 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

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 3/8

23:52-10:10

2 stops26h 18m

Glasgow Intl

Thu 20/8

14:00-11:17

2 stops29h 17m

£630

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 25/8

09:30-12:55

2 stops19h 25m

Glasgow Intl

Tue 1/9

06:00-19:05

2 stops21h 05m

£638

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 6/9

09:50-16:10

2 stops22h 20m

Glasgow Intl

Sun 27/9

06:00-19:05

2 stops21h 05m

£652

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 12/8

18:51-10:10

3 stops31h 19m

Glasgow Intl

Wed 19/8

14:00-18:59

2 stops36h 59m

£655

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 25/8

07:00-10:10

2 stops19h 10m

Glasgow Intl

Thu 3/9

14:00-15:20

2 stops33h 20m

£662
Fastest return journey

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 29/4

19:00-13:25

1 stop10h 25m

Glasgow Intl

Sun 3/5

14:30-20:40

1 stop14h 10m

£674

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 29/4

20:20-07:40

1 stop27h 20m

Glasgow Intl

Sun 3/5

21:15-11:35

1 stop22h 20m

£689

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 26/4

06:00-08:25

2 stops18h 25m

Glasgow Intl

Sun 3/5

06:00-11:42

1 stop13h 42m

£689

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 19/4

13:19-14:40

2 stops17h 21m

Glasgow Intl

Sun 26/4

12:15-22:38

2 stops18h 23m

£692
Cheapest one-way

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 15/7

13:30-12:30

1 stop15h 00m

£228

Flights are sorted by cheapest return flights first.

Deals found on 13/3

Showing 1-10 of 20 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?

Use this chart to determine the optimal time to book a return flight from Seattle to Glasgow Intl. Price data was last updated on 13 March 2026.

To ensure you get the cheapest price possible for a flight from Seattle to Glasgow Intl Airport, you should look to book at least 26 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 £376). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £549). 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.

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 15 March 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
7.1
Good
622 reviews
Check prices

Overall

7.1

Entertainment

7.0

Crew

8.1

Boarding

7.2

Food

6.2

Comfort

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

KEF - EWR

The airport in Reykjavik had too few seats at the departure gate. Otherwise the airport experience was fine. The flight was timely and smooth. The airplane was well maintained and staff pleasant and efficient
Icelandair
7.1
Good
622 reviews
Icelandair
7.1
Good
622 reviews
Check prices

Overall

7.1

Entertainment

7.0

Crew

8.1

Boarding

7.2

Food

6.2

Comfort

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

KEF - EWR

The airport in Reykjavik had too few seats at the departure gate. Otherwise the airport experience was fine. The flight was timely and smooth. The airplane was well maintained and staff pleasant and efficient

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 14h 20m. United Airlines provides one of the quickest options available for as low as £651. 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 £431 on this airline. Icelandair is currently priced 25% 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 £376). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £549). 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
Dunoon
Kilmarnock
Dumbarton
Arrochar
Clydebank
East Kilbride
Largs
Inveraray
Renfrew
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 15 March 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£431Average£552FlexibilityNo 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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