Find flights
When to book
Airlines
FAQs

Cheap flights from Seattle to Glasgow Intl Airport from £190

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
2 Sep — 9 Sep1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Glasgow Intl are usually found in November or February, booked 90 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap 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 28 August 2025.

Round-trip from

£365

One-way from

£190

Popular in

December

Cheapest in

November

Average price

£668
Icelandair
  • Icelandair
  • 7/10-22/10
  • 2 total stops
  • 24h 45m total
  • Seattle to Glasgow
Search Deals
16/10
  • 16/10
  • 2 total stops
  • 24h 30m total
  • Seattle to Glasgow
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Seattle to Glasgow Intl

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 28 August 2025.

Tue 7/1019:00SEA - GLA
1 stop10h 25mIcelandair
Wed 22/1014:20GLA - SEA
1 stop14h 20mIcelandair
Deal found 27/8£365
Fri 10/1015:45SEA - GLA
2 stops23h 40mMultiple Airlines
Fri 17/1007:55GLA - SEA
2 stops17h 55mMultiple Airlines
Deal found 27/8£402
Sat 11/1019:00SEA - GLA
1 stop10h 25mIcelandair
Sat 18/1014:20GLA - SEA
1 stop14h 20mIcelandair
Deal found 27/8£410
Mon 6/1019:00SEA - GLA
1 stop10h 25mIcelandair
Wed 15/1014:20GLA - SEA
1 stop14h 20mIcelandair
Deal found 27/8£454
Tue 7/1019:35SEA - GLA
1 stop13h 15mAer Lingus
Wed 22/1008:35GLA - SEA
1 stop17h 15mAer Lingus
Deal found 25/8£460
Thu 9/1019:35SEA - GLA
1 stop18h 45mMultiple Airlines
Thu 16/1008:10GLA - SEA
1 stop17h 40mMultiple Airlines
Deal found 25/8£464
Sun 5/1015:45SEA - GLA
1 stop13h 40mIcelandair
Tue 21/1014:20GLA - SEA
1 stop11h 30mIcelandair
Deal found 24/8£467
Fri 3/1019:00SEA - GLA
1 stop10h 25mIcelandair
Mon 13/1014:20GLA - SEA
1 stop11h 30mIcelandair
Deal found 25/8£468
Mon 13/1019:00SEA - GLA
1 stop10h 25mIcelandair
Sat 18/1014:20GLA - SEA
1 stop11h 30mIcelandair
Deal found 24/8£469
Mon 6/1015:45SEA - GLA
1 stop13h 40mIcelandair
Mon 13/1014:20GLA - SEA
1 stop14h 20mIcelandair
Deal found 27/8£472
Tue 7/1019:00SEA - GLA
1 stop10h 25mIcelandair
Mon 13/1014:20GLA - SEA
1 stop14h 20mIcelandair
Deal found 27/8£474

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 28 August 2025.
Use the filters below to find and compare flights from Seattle to Glasgow Intl Airport that are best for you.

Fly from

Seattle

Fly to

Glasgow Intl

Route

Depart

Return

Price

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 7/10

19:00-13:25

1 stop10h 25m

Glasgow Intl

Wed 22/10

14:20-20:40

1 stop14h 20m

£365

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 10/10

15:45-23:25

2 stops23h 40m

Glasgow Intl

Fri 17/10

07:55-17:50

2 stops17h 55m

£402

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 11/10

19:00-13:25

1 stop10h 25m

Glasgow Intl

Sat 18/10

14:20-20:40

1 stop14h 20m

£410

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 6/10

15:45-22:10

2 stops22h 25m

Glasgow Intl

Mon 13/10

08:30-20:40

2 stops20h 10m

£454

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 4/10

19:00-13:25

1 stop10h 25m

Glasgow Intl

Wed 15/10

14:20-17:50

1 stop11h 30m

£454

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 4/10

19:00-13:25

1 stop10h 25m

Glasgow Intl

Thu 16/10

14:20-17:50

1 stop11h 30m

£454

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 6/10

19:00-13:25

1 stop10h 25m

Glasgow Intl

Wed 15/10

14:20-20:40

1 stop14h 20m

£454

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 7/10

15:45-13:25

1 stop13h 40m

Glasgow Intl

Wed 15/10

14:20-20:40

1 stop14h 20m

£454

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 6/10

19:00-13:25

1 stop10h 25m

Glasgow Intl

Thu 16/10

14:20-17:50

1 stop11h 30m

£454

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 7/10

19:00-13:25

1 stop10h 25m

Glasgow Intl

Thu 16/10

14:20-20:40

1 stop14h 20m

£454

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 18 results
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 22 August 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Glasgow Intl Airport, you should look to book at least 90 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, April is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of £97). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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.

What is the cheapest time of day to fly from SEA to GLA?

Find hourly flight availability from Seattle to Glasgow Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 August 2025.

It’s typically best to fly out from Seattle to Glasgow Intl Airport in the morning. Doing so could potentially save you 10% on the flight price compared to flying at midday, which is usually more expensive.

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 28 August 2025.
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
534 reviews
Check prices

Food

6.2

Overall

7.0

Boarding

7.1

Comfort

6.9

Entertainment

7.0

Crew

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.
Icelandair
7.0
Good
534 reviews
Icelandair
7.0
Good
534 reviews
Check prices

Food

6.2

Overall

7.0

Boarding

7.1

Comfort

6.9

Entertainment

7.0

Crew

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.

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 10h 25m. Icelandair provides one of the quickest options available for as low as £365. There are 4445 mi between Seattle and Glasgow Intl Airport.

  • 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 £415 on this airline. Icelandair is currently priced 33% 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, April is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of £97). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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
Largs
Renfrew
Kilmarnock
Dumbarton
Clydebank
East Kilbride
Arrochar
Inveraray
Rothesay
Ballachulish
Alexandria
Tarbert
Balloch

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 28 August 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£415Average£489FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.