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Glasgow Intl

$312+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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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 Sunday and return on a Monday

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 August 16, 2025.

Round-trip from

$539
(Trip.com)

One-way from

$312
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$951
From Seattle/Tacoma Intl to Glasgow Intl
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One-way flight from Seattle/Tacoma Intl to Glasgow Intl
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Highest demand for flights based on searches. 1% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 16, 2025.

This Trip.com deal was found by Cheapflights users on 8/16. 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.
Wed 10/299:05 pmSEA - GLA
1 stop15h 35mAer Lingus
Wed 11/58:20 amGLA - SEA
1 stop18h 00mAer Lingus
Deal found 8/16$539
This oojo deal was found by Cheapflights users on 8/14. 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.
Tue 10/77:00 pmSEA - GLA
1 stop10h 25mIcelandair
Wed 10/222:20 pmGLA - SEA
1 stop11h 30mIcelandair
Deal found 8/14$631
This oojo deal was found by Cheapflights users on 8/15. 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 10/313:35 pmSEA - GLA
1 stop11h 20mIcelandair
Sat 11/812:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 8/15$632
This FlightHub deal was found by Cheapflights users on 8/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/253:50 pmSEA - GLA
1 stop13h 35mIcelandair
Tue 11/412:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 8/16$635
This oojo deal was found by Cheapflights users on 8/14. 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 9/283:45 pmSEA - GLA
1 stop13h 40mIcelandair
Sun 10/52:20 pmGLA - SEA
1 stop14h 20mIcelandair
Deal found 8/14$638
This Mytrip deal was found by Cheapflights users on 8/15. 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.
Sun 9/146:50 pmSEA - GLA
2 stops18h 35mMultiple Airlines
Tue 9/3010:35 pmGLA - SEA
2 stops21h 20mMultiple Airlines
Deal found 8/15$640
This Gotogate deal was found by Cheapflights users on 8/15. 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 9/147:00 pmSEA - GLA
1 stop10h 25mIcelandair
Tue 9/302:20 pmGLA - SEA
1 stop11h 30mIcelandair
Deal found 8/15$643
This oojo deal was found by Cheapflights users on 8/14. 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.
Tue 9/237:00 pmSEA - GLA
1 stop10h 25mIcelandair
Sun 9/282:20 pmGLA - SEA
1 stop14h 20mIcelandair
Deal found 8/14$645
This Cheapflightsfares deal was found by Cheapflights users on 8/15. 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.
Tue 11/42:35 pmSEA - GLA
1 stop11h 20mIcelandair
Sun 11/912:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 8/15$647
This FlightHub deal was found by Cheapflights users on 8/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/253:45 pmSEA - GLA
1 stop13h 40mIcelandair
Tue 9/302:20 pmGLA - SEA
1 stop14h 20mIcelandair
Deal found 8/16$648
This Gurufare deal was found by Cheapflights users on 8/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/243:45 pmSEA - GLA
1 stop13h 40mIcelandair
Wed 11/512:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 8/16$650

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 August 16, 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

Wed 10/29

9:05 pm-7:40 pm

1 stop15h 35m

Glasgow Intl

Wed 11/5

8:20 am-6:20 pm

1 stop18h 00m

$539

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 10/7

7:00 pm-1:25 pm

1 stop10h 25m

Glasgow Intl

Wed 10/22

2:20 pm-5:50 pm

1 stop11h 30m

$631

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 11/1

3:35 pm-9:55 am

1 stop11h 20m

Glasgow Intl

Sat 11/8

12:35 pm-5:00 pm

1 stop12h 25m

$632

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 10/13

7:00 pm-1:25 pm

1 stop10h 25m

Glasgow Intl

Wed 10/22

2:20 pm-5:50 pm

1 stop11h 30m

$632

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 10/24

3:45 pm-1:25 pm

1 stop13h 40m

Glasgow Intl

Mon 11/3

12:35 pm-5:00 pm

1 stop12h 25m

$632

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 10/31

3:35 pm-9:55 am

1 stop11h 20m

Glasgow Intl

Sat 11/8

12:35 pm-5:00 pm

1 stop12h 25m

$632

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 10/25

6:55 pm-12:25 pm

1 stop10h 30m

Glasgow Intl

Mon 11/3

12:35 pm-5:00 pm

1 stop12h 25m

$635

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 10/24

7:00 pm-1:25 pm

1 stop10h 25m

Glasgow Intl

Tue 11/4

12:35 pm-5:00 pm

1 stop12h 25m

$635

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 10/24

7:00 pm-1:25 pm

1 stop10h 25m

Glasgow Intl

Sun 11/2

12:35 pm-5:00 pm

1 stop12h 25m

$635

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 9/13

9:39 pm-2:50 pm

2 stops57h 11m

$312

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 16 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 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 August 8, 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, November is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of $664). Flying from Seattle to Glasgow Intl Airport in June is currently the most expensive (average of $1,154). 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 August 16, 2025.

It’s typically best to fly out from Seattle to Glasgow Intl Airport in the evening. Doing so could potentially save you 10% on the flight price compared to flying in the afternoon, 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 August 16, 2025.
Get a feel of what it's like to fly with American Airlines, Aer Lingus, and Icelandair 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.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Overall

7.2

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Overall

7.2

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Aer Lingus
7.1
Good
1,217 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Overall

7.2

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Icelandair
7.0
Good
527 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Overall

7.2

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Lufthansa
6.8
Okay
7,322 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Overall

7.2

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
British Airways
6.7
Okay
7,267 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Food

6.5

Overall

7.2

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

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 6 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.

  • 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 $566. Other airlines that can offer you cheap pricing are Lufthansa, from $671, and Aer Lingus, from $689. Icelandair is currently priced 33% 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 Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool. Travelers on a layover in Reykjavik can visit Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool, by traveling 23.3 mi, 23.2 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 $66 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 $664). Flying from Seattle to Glasgow Intl Airport in June is currently the most expensive (average of $1,154). 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

Traveling to a place near Glasgow Intl Airport?

Book flights to Glasgow Intl Airport if you plan to visit one of these locations
Paisley

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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 6 airlines flying from Seattle to Glasgow Intl

Discover the top 6 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$566Average$781FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$671Average$960FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$689Average$965FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$689Average$794FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$707Average$895FlexibilityNo cancel feeOn-time70%
DeltaCheapest$710Average$917FlexibilityNo cancel feeOn-timeN/A

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