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$321+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Glasgow are usually found in November or February, booked 62 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 April 29, 2025.

Round-trip from

$639
(oojo)

One-way from

$321
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$779
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. 23% potential increase in price ($267 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

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.
Tue 9/307:00 pmSEA - GLA
1 stop10h 25mIcelandair
Tue 10/142:20 pmGLA - SEA
1 stop11h 30mIcelandair
Deal found 4/29$639
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/301:30 pmSEA - GLA
1 stop13h 15mAmerican Airlines
Mon 10/133:25 pmGLA - SEA
1 stop27h 45mAmerican Airlines
Deal found 4/29$667
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/103:13 pmSEA - GLA
2 stops24h 02mIberia
Thu 9/254:25 pmGLA - SEA
1 stop27h 10mIberia
Deal found 4/29$681
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/291:30 pmSEA - GLA
1 stop12h 35mBritish Airways
Mon 10/138:50 pmGLA - SEA
1 stop22h 20mBritish Airways
Deal found 4/28$746
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/292:20 pmSEA - GLA
1 stop14h 00mLufthansa
Fri 10/106:10 amGLA - SEA
2 stops16h 06mLufthansa
Deal found 4/28$765
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:05 amSEA - GLA
2 stops18h 20mDelta
Wed 8/206:00 amGLA - SEA
1 stop13h 35mDelta
Deal found 4/29$781
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/195:40 pmSEA - GLA
1 stop32h 05mKLM
Fri 10/36:00 amGLA - SEA
1 stop13h 50mKLM
Deal found 4/29$827
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/122:55 pmSEA - GLA
3 stops31h 55mMultiple Airlines
Thu 6/198:35 amGLA - SEA
2 stops20h 06mMultiple Airlines
Deal found 4/28$883
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:45 pmSEA - GLA
1 stop29h 20mAer Lingus
Mon 5/195:40 pmGLA - SEA
1 stop32h 10mAer Lingus
Deal found 4/29$917

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 April 29, 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

Tue 9/30

7:00 pm-1:25 pm

1 stop10h 25m

Glasgow Intl

Tue 10/14

2:20 pm-5:50 pm

1 stop11h 30m

$639

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 9/30

1:30 pm-10:45 am

1 stop13h 15m

Glasgow Intl

Mon 10/13

3:25 pm-11:10 am

1 stop27h 45m

$667

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 9/10

3:13 pm-11:15 pm

2 stops24h 02m

Glasgow Intl

Thu 9/25

4:25 pm-11:35 am

1 stop27h 10m

$681

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 9/29

1:30 pm-10:05 am

1 stop12h 35m

Glasgow Intl

Mon 10/13

8:50 pm-11:10 am

1 stop22h 20m

$746

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 9/29

2:20 pm-12:20 pm

1 stop14h 00m

Glasgow Intl

Fri 10/10

6:10 am-2:16 pm

2 stops16h 06m

$765

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 8/13

6:05 am-8:25 am

2 stops18h 20m

Glasgow Intl

Wed 8/20

6:00 am-11:35 am

1 stop13h 35m

$781

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 9/19

5:40 pm-9:45 am

1 stop32h 05m

Glasgow Intl

Fri 10/3

6:00 am-11:50 am

1 stop13h 50m

$827

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 8/23

12:34 am-10:30 am

2 stops25h 56m

Glasgow Intl

Tue 9/2

9:15 am-5:50 pm

2 stops16h 35m

$877

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Fri 5/9

6:45 pm-8:05 am

1 stop29h 20m

Glasgow Intl

Mon 5/19

5:40 pm-5:50 pm

1 stop32h 10m

$917

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Thu 9/11

7:00 pm-11:30 pm

3 stops20h 30m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 15 results
1
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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 April 25, 2025.

Booking 62 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, November is the cheapest month in which you can book a flight from Seattle to Glasgow (average of $664). Flying from Seattle to Glasgow in June is currently the most expensive (average of $1,183). 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 April 29, 2025.

It’s typically best to fly out from Seattle to Glasgow 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.

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. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Glasgow by month

Plan your trip to Glasgow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Glasgow ranges from 1.3 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. May is typically the driest time to visit Glasgow when rainfall is around 1.3 in.

Temperature in Glasgow by month

Plan your trip to Glasgow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Glasgow, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 April 29, 2025.
Read reviews from past customers who have flown Delta, KLM and American Airlines from Seattle to Glasgow. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Icelandair
7.0
Good
487 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.0
Good
1,076 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    Icelandair, at $639, was found to be the cheapest airline from Seattle to Glasgow.Alternate airlines to your destination round-trip include American Airlines and Iberia. Users have found that Icelandair is 28% cheaper than the other options available to this destination.

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

    One-way options have recently been found by users for as low as $323 on Icelandair. Other airlines that offer cheap prices include Aer Lingus from $424 and British Airways from $458 one-way.

  • 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 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 $47 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, November is the cheapest month in which you can book a flight from Seattle to Glasgow (average of $664). Flying from Seattle to Glasgow in June is currently the most expensive (average of $1,183). 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$562Average$816FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$621Average$1,136FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$662Average$1,064FlexibilityNo cancel feeOn-time76%
WestJetCheapest$673Average$1,101FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$689Average$916FlexibilityNo cancel feeOn-time71%
DeltaCheapest$710Average$1,097FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$718Average$979FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$736Average$1,378FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$786Average$1,038FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$820Average$1,177FlexibilityNo cancel feeOn-time72%

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