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Glasgow Intl

$318+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
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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 April 29, 2026.

This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:00 pm
SEA
-
GLA
1 stop10h 25m
Icelandair
Tue 10/202:20 pm
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 4/28$807
This Mytrip deal was found by Cheapflights users on 4/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/105:45 am
SEA
-
GLA
3 stops19h 55m
Multiple Airlines
Wed 6/177:45 am
GLA
-
SEA
3 stops33h 55m
Multiple Airlines
Deal found 4/26$813
This oojo deal was found by Cheapflights users on 4/27. 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 10/53:40 pm
SEA
-
GLA
1 stop13h 45m
Icelandair
Thu 10/152:20 pm
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 4/27$821
This Gotogate deal was found by Cheapflights users on 4/26. 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.
Wed 9/93:40 pm
SEA
-
GLA
1 stop13h 45m
Icelandair
Wed 9/162:20 pm
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 4/26$823
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 pm
SEA
-
GLA
1 stop10h 25m
Icelandair
Fri 9/42:20 pm
GLA
-
SEA
1 stop11h 35m
Icelandair
Deal found 4/28$824
This CrystalTravel deal was found by Cheapflights users on 4/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:40 pm
SEA
-
GLA
1 stop13h 45m
Icelandair
Fri 9/182:20 pm
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 4/27$826
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1310:30 am
SEA
-
GLA
2 stops36h 20m
Multiple Airlines
Wed 7/228:35 am
GLA
-
SEA
2 stops18h 10m
Multiple Airlines
Deal found 4/26$829
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:25 pm
SEA
-
GLA
1 stop30h 00m
Icelandair
Wed 9/92:20 pm
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 4/28$830
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:25 pm
SEA
-
GLA
1 stop30h 00m
Icelandair
Wed 8/192:20 pm
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 4/28$831
This oojo deal was found by Cheapflights users on 4/28. 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 8/37:00 pm
SEA
-
GLA
1 stop10h 25m
Icelandair
Thu 8/202:20 pm
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 4/28$835
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/163:40 pm
SEA
-
GLA
1 stop13h 45m
Icelandair
Thu 8/202:20 pm
GLA
-
SEA
1 stop14h 20m
Icelandair
Deal found 4/29$836

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 April 29, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$807
(Gotogate)

One-way from

$318
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$783
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. 18% potential increase in price ($179 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 29, 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

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 7/3

5:45 am-9:40 am

2 stops19h 55m

Glasgow Intl

Mon 7/13

9:45 pm-9:40 am

3 stops43h 55m

$961

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 7/20

8:56 am-10:10 am

2 stops17h 14m

Glasgow Intl

Sat 8/15

2:00 pm-11:45 pm

1 stop17h 45m

$1,038

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 5/26

9:10 am-8:25 am

2 stops15h 15m

Glasgow Intl

Tue 6/2

6:00 am-4:24 pm

1 stop18h 24m

$1,063

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 5/26

9:10 am-8:25 am

2 stops15h 15m

Glasgow Intl

Mon 6/1

4:55 pm-11:37 am

1 stop26h 42m

$1,064
Quickest round-trip

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 5/31

1:45 pm-4:10 pm

1 stop18h 25m

Glasgow Intl

Wed 6/10

6:00 am-11:37 am

1 stop13h 37m

$1,088

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 7/3

11:52 pm-10:10 am

2 stops50h 18m

Glasgow Intl

Wed 7/15

2:00 pm-8:00 am

2 stops26h 00m

$1,104

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 5/8

10:50 am-4:15 pm

2 stops21h 25m

Glasgow Intl

Tue 5/12

6:00 am-11:42 am

1 stop13h 42m

$1,105

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 5/8

7:08 am-10:10 am

2 stops19h 02m

Glasgow Intl

Tue 5/12

2:00 pm-11:39 am

2 stops29h 39m

$1,105

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 5/26

10:15 am-4:10 pm

2 stops21h 55m

Glasgow Intl

Mon 6/1

9:10 am-10:40 pm

2 stops21h 30m

$1,134

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 6/2

11:00 pm-10:10 am

1 stop27h 10m

Glasgow Intl

Mon 6/8

2:00 pm-8:00 am

2 stops26h 00m

$1,160

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 19 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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
BusinessClassPrice Accuracy3 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-Glasgow Intl Airport flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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?

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, November is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of $653). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of $1,016). 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 April 29, 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
7.3
Good
1,536 reviews

Overall

7.3

Crew

8.1

Comfort

7.2

Food

6.6

Boarding

7.4

Entertainment

7.0

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
7.3
Good
1,536 reviews
Aer Lingus
7.3
Good
1,536 reviews

Overall

7.3

Crew

8.1

Comfort

7.2

Food

6.6

Boarding

7.4

Entertainment

7.0

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
11,678 reviews
Aer Lingus
7.3
Good
1,536 reviews

Overall

7.3

Crew

8.1

Comfort

7.2

Food

6.6

Boarding

7.4

Entertainment

7.0

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
646 reviews
Aer Lingus
7.3
Good
1,536 reviews

Overall

7.3

Crew

8.1

Comfort

7.2

Food

6.6

Boarding

7.4

Entertainment

7.0

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
7,931 reviews
Aer Lingus
7.3
Good
1,536 reviews

Overall

7.3

Crew

8.1

Comfort

7.2

Food

6.6

Boarding

7.4

Entertainment

7.0

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 4 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 $1,063, United Airlines can have you in Glasgow Intl Airport from Seattle in 15h 15m. 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 $522. Other airlines that can offer you cheap pricing are British Airways, from $609, and Aer Lingus, from $689. Icelandair is currently priced 34% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to Glasgow Intl Airport one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $274. British Airways flights start at $298 while deals on Aer Lingus start at $354 one-way.

  • 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, November is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of $653). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of $1,016). 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

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Top 4 airlines flying from Seattle to Glasgow Intl

Discover the top 4 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 April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$522Average$763FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$609Average$834FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$689Average$1,101FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$794Average$999FlexibilityNo cancel feeOn-time71%

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