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$310+ Cheap flights from Seattle (SEA) to Glasgow

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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Glasgow are usually found in November or March, booked 36 days in advance, depart on a Monday or Sunday and return on a Monday

Cheap flight deals from Seattle to Glasgow

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Glasgow (GG1). 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 October 28, 2025.

Round-trip from

$474
(CrystalTravel)

One-way from

$310
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$721
From Seattle/Tacoma Intl to Glasgow
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One-way flight from Seattle/Tacoma Intl to Glasgow
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Highest demand for flights based on searches. 19% potential increase in price ($205 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Seattle to Glasgow

Cheapest flights from Seattle to Glasgow
Explore the most affordable flight options available from Seattle to Glasgow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This FlightHub deal was found by Cheapflights users on 10/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/62:35 pmSEA - GLA
1 stop11h 20mIcelandair
Sun 12/1412:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 10/26$492
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/12:35 pmSEA - GLA
1 stop11h 20mIcelandair
Fri 12/512:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 10/28$505
This KAYAK deal was found by Cheapflights users on 10/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/252:35 pmSEA - GLA
1 stop11h 20mIcelandair
Thu 12/412:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 10/26$515
This oojo deal was found by Cheapflights users on 10/27. 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.
Thu 12/112:35 pmSEA - GLA
1 stop11h 20mIcelandair
Thu 12/1812:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 10/27$585
This SmartFares deal was found by Cheapflights users on 10/26. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/102:35 pmSEA - GLA
1 stop11h 20mIcelandair
Wed 12/1712:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 10/26$590
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:35 pmSEA - GLA
1 stop11h 20mIcelandair
Wed 12/1712:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 10/27$602
This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:00 pmSEA - GLA
1 stop17h 35mDelta
Mon 12/89:05 amGLA - SEA
1 stop34h 45mDelta
Deal found 10/26$604
This Air France deal was found by Cheapflights users on 10/27. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/177:20 amSEA - GLA
2 stops17h 10mKLM
Mon 11/245:20 pmGLA - SEA
1 stop26h 25mKLM
Deal found 10/27$608
This FlightHub deal was found by Cheapflights users on 10/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/92:35 pmSEA - GLA
1 stop11h 20mIcelandair
Fri 11/1412:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 10/26$621
This Mytrip deal was found by Cheapflights users on 10/26. 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 12/102:35 pmSEA - GLA
2 stops22h 25mMultiple Airlines
Wed 12/178:20 amGLA - SEA
2 stops16h 40mMultiple Airlines
Deal found 10/26$626
This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:00 pmSEA - GLA
1 stop33h 30mDelta
Sun 12/71:25 pmGLA - SEA
1 stop30h 25mDelta
Deal found 10/26$632
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:50 pmSEA - GLA
1 stop12h 20mBritish Airways
Mon 12/811:35 amGLA - SEA
1 stop13h 20mBritish Airways
Deal found 10/26$641

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Glasgow 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 October 28, 2025.
Use the filters below to find and compare flights from Seattle to Glasgow that are best for you.

Fly from

Seattle

Fly to

Glasgow

Route

Depart

Return

Price

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 12/1

2:35 pm-9:55 am

1 stop11h 20m

Glasgow Intl

Fri 12/5

12:35 pm-5:00 pm

1 stop12h 25m

$505

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 12/3

3:05 pm-4:35 pm

1 stop17h 30m

Glasgow Intl

Mon 12/8

1:25 pm-11:50 am

1 stop30h 25m

$604

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 11/17

7:20 am-8:30 am

2 stops17h 10m

Glasgow Intl

Mon 11/24

5:20 pm-11:45 am

1 stop26h 25m

$608

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 1/14

3:10 pm-4:35 pm

1 stop17h 25m

Glasgow Intl

Wed 1/21

6:05 am-11:50 am

1 stop13h 45m

$612

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 1/14

12:00 pm-4:35 pm

2 stops20h 35m

Glasgow Intl

Wed 1/21

6:05 am-11:50 am

1 stop13h 45m

$616

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 11/9

2:35 pm-9:55 am

1 stop11h 20m

Glasgow Intl

Fri 11/14

12:35 pm-5:00 pm

1 stop12h 25m

$621

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 11/25

3:00 pm-4:35 pm

1 stop17h 35m

Glasgow Intl

Sat 12/6

10:40 am-11:50 am

1 stop33h 10m

$632

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 11/29

3:00 pm-4:35 pm

1 stop17h 35m

Glasgow Intl

Mon 12/8

9:05 am-11:50 am

1 stop34h 45m

$632

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 12/6

3:05 pm-12:45 pm

1 stop13h 40m

Glasgow Intl

Mon 12/15

5:20 pm-4:21 pm

2 stops31h 01m

$642

SeattleGlasgow

SEA - PIK

SEAPIK

Seattle/Tacoma Intl

Fri 11/7

3:10 pm-11:30 pm

3 stops24h 20m

Glasgow Prestwick

Mon 11/17

4:10 pm-5:00 pm

3 stops32h 50m

$1,142

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 20 results
1
2

Best time to book a flight from Seattle to Glasgow

Have a flexible travel schedule? Discover the best time to fly to Glasgow 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

How far ahead should I book a flight from Seattle to Glasgow?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Glasgow. Price data was last updated on October 24, 2025.

Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Glasgow. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Glasgow?

Currently, October is the cheapest month in which you can book a flight from Seattle to Glasgow (average of $496). Flying from Seattle to Glasgow in July is currently the most expensive (average of $821). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s typically best to fly out from Seattle to Glasgow in the afternoon. Doing so could potentially save you 13% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Seattle to Glasgow?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Glasgow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Glasgow flight should consider departing on Monday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Glasgow

Get insights into the airlines that provide service to Glasgow. 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. Reviews last updated October 28, 2025.
See what other customers who have flown with American Airlines, Aer Lingus, and Icelandair from Seattle to Glasgow have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,032 reviews

Crew

8.0

Entertainment

6.9

Overall

7.2

Boarding

7.5

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,032 reviews
American Airlines
7.2
Good
11,032 reviews

Crew

8.0

Entertainment

6.9

Overall

7.2

Boarding

7.5

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
Aer Lingus
7.2
Good
1,361 reviews
American Airlines
7.2
Good
11,032 reviews

Crew

8.0

Entertainment

6.9

Overall

7.2

Boarding

7.5

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
Icelandair
7.1
Good
562 reviews
American Airlines
7.2
Good
11,032 reviews

Crew

8.0

Entertainment

6.9

Overall

7.2

Boarding

7.5

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
Lufthansa
6.8
Okay
7,535 reviews
American Airlines
7.2
Good
11,032 reviews

Crew

8.0

Entertainment

6.9

Overall

7.2

Boarding

7.5

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
British Airways
6.7
Okay
7,483 reviews
American Airlines
7.2
Good
11,032 reviews

Crew

8.0

Entertainment

6.9

Overall

7.2

Boarding

7.5

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Seattle to Glasgow. 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?

    If you book a flight to Glasgow from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Seattle/Tacoma Intl to Glasgow per day from 12 different airlines.

  • How long is the flight from Seattle to Glasgow?

    Icelandair, Delta, and KLM can get you from Seattle to Glasgow in just under 11h 20m. Your travel time can differ by up to 6h 10m. Seattle and Glasgow are separated by a distance of 4445 mi. This flight may include one or multiple stops.

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

    Icelandair, at $556, was found to be the cheapest airline from Seattle to Glasgow.Alternate airlines to your destination round-trip include American Airlines and Aer Lingus. Users have found that Icelandair is 32% cheaper than the other options available to this destination.

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

    Most of the time, Seattle to Glasgow 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 $48 per day.

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

    The least popular layover on flights from Seattle to Glasgow is London.

  • Can I find deals for flights from Seattle to Glasgow that include hotel bookings?

    Yes. In addition to deals on Seattle to Glasgow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Glasgow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Glasgow.

  • Can I find deals for business class flights from Seattle to Glasgow?

    Yes. Cheapflights offers flight deals from Seattle to Glasgow 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?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Glasgow (average of $496). Flying from Seattle to Glasgow in July is currently the most expensive (average of $821). 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 10 airlines flying from Seattle to Glasgow

Discover the top 10 airlines that operate flights from Seattle to Glasgow. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$213Average$1,004FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$485Average$741FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$608Average$861FlexibilityNo cancel feeOn-time72%
Aer LingusCheapest$618Average$979FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$628Average$856FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$652Average$836FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$670Average$913FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$673Average$918FlexibilityNo cancel feeOn-time76%
DeltaCheapest$684Average$1,115FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$736Average$944FlexibilityNo cancel feeOn-time77%

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