HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Glasgow Intl

$288+ Cheap flights from Seattle (SEA) to Glasgow Intl (GLA)

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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
Apr 29 — May 61
Wed 4/29
Wed 5/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Glasgow Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 March 30, 2026.

This Booking.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:55 pm
SEA
-
GLA
1 stop16h 45m
Aer Lingus
Wed 4/2212:00 pm
GLA
-
SEA
1 stop13h 10m
Aer Lingus
Deal found 3/25$723
This eDestinos deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:00 pm
SEA
-
GLA
1 stop10h 25m
Icelandair
Mon 5/42:20 pm
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 3/29$749
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:00 pm
SEA
-
GLA
1 stop10h 25m
Multiple Airlines
Mon 5/49:25 am
GLA
-
SEA
2 stops41h 58m
Multiple Airlines
Deal found 3/29$757
This Gotogate deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:25 pm
SEA
-
GLA
1 stop30h 00m
Icelandair
Sat 9/262:20 pm
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 3/25$785
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/283:35 pm
SEA
-
GLA
1 stop11h 20m
Icelandair
Tue 11/1011:55 am
GLA
-
SEA
1 stop13h 05m
Icelandair
Deal found 3/25$788
This Cheapflightsfares deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:00 pm
SEA
-
GLA
1 stop10h 25m
Icelandair
Mon 5/112:20 pm
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 3/25$805
This Booking.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:00 pm
SEA
-
GLA
1 stop10h 25m
Icelandair
Tue 10/132:20 pm
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 3/28$816
This oojo deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:00 pm
SEA
-
GLA
1 stop10h 25m
Icelandair
Thu 10/152:20 pm
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 3/28$819
This Cheapflightsfares deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:00 pm
SEA
-
GLA
1 stop10h 25m
Icelandair
Wed 10/142:20 pm
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 3/29$821
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:00 pm
SEA
-
GLA
1 stop10h 25m
Icelandair
Sun 8/232:20 pm
GLA
-
SEA
1 stop29h 25m
Icelandair
Deal found 3/25$822

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 March 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$723
(Booking.com)

One-way from

$288
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$697
Provider with most accurate pricing for Seattle/Tacoma Intl-Glasgow Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Glasgow Intl flights.
Search Deals
From Seattle/Tacoma Intl to Glasgow Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to Glasgow Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($128 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated March 30, 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 round-trip
Quickest round-trip

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 9/6

7:00 pm-1:25 pm

1 stop10h 25m

Glasgow Intl

Thu 9/10

2:20 pm-8:40 pm

1 stop14h 20m

$879

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 5/19

1:45 pm-11:10 pm

1 stop25h 25m

Glasgow Intl

Thu 5/28

6:00 am-4:01 pm

2 stops18h 01m

$1,002

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 8/24

11:56 pm-10:10 am

2 stops26h 14m

Glasgow Intl

Sat 8/29

2:00 pm-2:22 pm

3 stops32h 22m

$1,016

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Thu 4/23

6:00 am-8:25 am

2 stops18h 25m

Glasgow Intl

Fri 5/1

9:10 am-8:25 pm

2 stops19h 15m

$1,023

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 5/26

1:46 pm-2:40 pm

2 stops16h 54m

Glasgow Intl

Fri 6/5

7:00 am-11:35 am

1 stop12h 35m

$1,032

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 5/17

11:00 pm-8:25 am

2 stops25h 25m

Glasgow Intl

Wed 6/3

9:10 am-10:45 pm

2 stops21h 35m

$1,042

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 4/19

1:30 pm-9:50 am

1 stop12h 20m

Glasgow Intl

Sun 4/26

12:15 pm-10:38 pm

2 stops18h 23m

$1,051

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 4/20

6:00 am-8:25 am

2 stops18h 25m

Glasgow Intl

Fri 5/1

9:10 am-10:31 pm

2 stops21h 21m

$1,063
Cheapest one-way

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 7/15

1:30 pm-10:30 am

1 stop13h 00m

$349

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 9/8

8:20 pm-10:25 pm

1 stop18h 05m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Glasgow Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Glasgow Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Glasgow Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Glasgow Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Glasgow Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Glasgow Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Glasgow Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Seattle to Glasgow Intl. Price data was last updated on March 13, 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 $497). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of $726). 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 to fly round-trip 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 March 30, 2026.
Get a feel of what it's like to fly with Aer Lingus,American Airlines, andIcelandair from Seattle to Glasgow Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,493 reviews

Food

6.6

Entertainment

7.0

Boarding

7.4

Crew

8.1

Overall

7.2

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Aer Lingus
7.2
Good
1,493 reviews
Aer Lingus
7.2
Good
1,493 reviews

Food

6.6

Entertainment

7.0

Boarding

7.4

Crew

8.1

Overall

7.2

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
American Airlines
7.1
Good
11,530 reviews
Aer Lingus
7.2
Good
1,493 reviews

Food

6.6

Entertainment

7.0

Boarding

7.4

Crew

8.1

Overall

7.2

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Icelandair
7.0
Good
627 reviews
Aer Lingus
7.2
Good
1,493 reviews

Food

6.6

Entertainment

7.0

Boarding

7.4

Crew

8.1

Overall

7.2

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Lufthansa
6.8
Okay
7,877 reviews
Aer Lingus
7.2
Good
1,493 reviews

Food

6.6

Entertainment

7.0

Boarding

7.4

Crew

8.1

Overall

7.2

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
British Airways
6.7
Okay
7,834 reviews
Aer Lingus
7.2
Good
1,493 reviews

Food

6.6

Entertainment

7.0

Boarding

7.4

Crew

8.1

Overall

7.2

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.

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?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Glasgow Intl. You should not have trouble finding flights to Glasgow Intl from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to Glasgow Intl per day. You should also have plenty of airline options to choose from since 5 airlines have flights from the Seattle airport to Glasgow Intl. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

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

    For as low as $879, Icelandair can have you in Glasgow Intl Airport from Seattle in 10h 25m. The distance between Seattle and Glasgow Intl Airport is about 4445 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Seattle to Glasgow Intl Airport round-trip?

    Cheapflights users have booked flights from Seattle to Glasgow Intl Airport round-trip from $524. Other airlines that can offer you cheap pricing are British Airways, from $609, and Aer Lingus, from $689. Icelandair is currently priced 31% below the average price you’ll pay for this route.

  • Where are the most common layover locations when flying from Seattle to Glasgow Intl Airport?

    Most of the time, Seattle to Glasgow Intl Airport flights that have layovers will stop in Reykjavik.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Most Reykjavik visitors opt to spend their time experiencing Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool. Travelers on a layover in Reykjavik can visit Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool, by traveling 23.2 mi, 23.3 mi, and 24.6 mi, respectively after landing at Reykjavik Keflavik Intl. Travelers in need of a car in Reykjavik can rent one for about $59 per day.

  • Where are the least popular layover locations for Seattle to Glasgow Intl Airport flights?

    Seattle to Glasgow Intl Airport flights have a layover in London the least frequently.

  • 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 vacation 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 $497). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of $726). 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

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.

Top 5 airlines flying from Seattle to Glasgow Intl

Discover the top 5 airlines 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 2,558,603 searches. Data last updated March 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$524Average$739FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$609Average$841FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$689Average$971FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$701Average$872FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$794Average$794FlexibilityNo cancel feeOn-time71%

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.