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$320+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
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 36 days in advance, depart on a Monday or Sunday and return on a Monday

Cheap 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 diciembre 12, 2025.

This oojo deal was found by Cheapflights users on 12/10. 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.
dom. 12/145:36 pmSEA - GLA
2 stops32h 19mIcelandair
vie. 12/1912:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 12/10$1,344
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/143:10 pmSEA - GLA
2 stops24h 00mLufthansa
vie. 12/1912:50 pmGLA - SEA
2 stops56h 30mLufthansa
Deal found 12/10$1,417
This Ovago deal was found by Cheapflights users on 12/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/148:05 pmSEA - GLA
1 stop15h 35mAer Lingus
vie. 12/1912:00 pmGLA - SEA
1 stop14h 20mAer Lingus
Deal found 12/10$1,455
This Ovago deal was found by Cheapflights users on 12/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/178:05 pmSEA - GLA
1 stop11h 55mAer Lingus
lun. 12/228:20 amGLA - SEA
1 stop18h 00mAer Lingus
Deal found 12/11$1,472
This KLM deal was found by Cheapflights users on 12/11. 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.
mié. 12/1711:15 amSEA - GLA
2 stops17h 30mKLM
lun. 12/225:20 pmGLA - SEA
1 stop26h 30mKLM
Deal found 12/11$1,484
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
lun. 12/158:05 pmSEA - GLA
1 stop27h 45mMultiple Airlines
dom. 1/410:15 pmGLA - SEA
2 stops32h 15mMultiple Airlines
Deal found 12/11$1,755
This Delta deal was found by Cheapflights users on 12/11. 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.
mié. 12/177:20 amSEA - GLA
2 stops21h 25mDelta
lun. 12/226:05 amGLA - SEA
2 stops18h 02mDelta
Deal found 12/11$1,848
This Mytrip deal was found by Cheapflights users on 12/11. 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.
mié. 12/175:50 amSEA - GLA
2 stops17h 50mMultiple Airlines
lun. 12/228:10 pmGLA - SEA
3 stops27h 30mMultiple Airlines
Deal found 12/11$2,294
This KLM deal was found by Cheapflights users on 12/10. 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.
jue. 12/183:05 pmSEA - GLA
1 stop17h 35mKLM
jue. 1/16:05 amGLA - SEA
1 stop13h 45mKLM
Deal found 12/10$2,469

Find 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 diciembre 12, 2025.

Round-trip from

$478
(CrystalTravel)

One-way from

$320
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$725
From Seattle/Tacoma Intl to Glasgow
Search Deals
One-way flight from Seattle/Tacoma Intl to Glasgow
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 diciembre 12, 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

jue. 2/19

2:35 pm-9:55 am

1 stop11h 20m

Glasgow Intl

vie. 2/27

12:35 pm-5:00 pm

1 stop12h 25m

$478

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

sáb. 1/24

2:35 pm-9:55 am

1 stop11h 20m

Glasgow Intl

mar. 2/17

12:35 pm-5:00 pm

1 stop12h 25m

$490

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

vie. 3/6

1:35 pm-1:05 pm

1 stop15h 30m

Glasgow Intl

vie. 3/13

9:40 am-5:55 pm

1 stop15h 15m

$587

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

sáb. 2/7

1:35 pm-10:45 am

1 stop13h 10m

Glasgow Intl

sáb. 2/14

6:35 am-11:30 am

1 stop12h 55m

$587

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

sáb. 3/14

7:50 pm-5:10 pm

1 stop14h 20m

Glasgow Intl

sáb. 3/21

6:35 am-12:30 pm

1 stop12h 55m

$588

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

jue. 1/22

2:04 pm-5:50 pm

2 stops19h 46m

Glasgow Intl

jue. 1/29

5:55 am-10:20 pm

2 stops24h 25m

$606

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

vie. 1/30

1:35 pm-1:05 pm

1 stop15h 30m

Glasgow Intl

mar. 2/3

6:25 am-11:30 am

1 stop13h 05m

$607

SeattleGlasgow

SEA - PIK

SEAPIK

Seattle/Tacoma Intl

sáb. 3/14

3:00 pm-12:35 am

3 stops26h 35m

Glasgow Prestwick

sáb. 3/21

4:35 pm-6:00 pm

3 stops32h 25m

$1,331

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

sáb. 1/24

7:54 pm-9:55 am

2 stops30h 01m

$320

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

mar. 5/5

6:45 pm-9:20 pm

1 stop18h 35m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 17 results
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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 December 5, 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, January is the cheapest month in which you can book a flight from Seattle to Glasgow (average of $449). 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 diciembre 12, 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 diciembre 12, 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
11,049 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,049 reviews
American Airlines
7.2
Good
11,049 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Aer Lingus
7.2
Good
1,394 reviews
American Airlines
7.2
Good
11,049 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Icelandair
7.0
Good
589 reviews
American Airlines
7.2
Good
11,049 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Lufthansa
6.8
Okay
7,626 reviews
American Airlines
7.2
Good
11,049 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
British Airways
6.7
Okay
7,571 reviews
American Airlines
7.2
Good
11,049 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 11 different airlines.

  • How long is the flight from Seattle to Glasgow?

    Icelandair and British Airways can get you from Seattle to Glasgow in just under 11h 20m. Your travel time can differ by up to 4h 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 $558, was found to be the cheapest airline from Seattle to Glasgow.Alternate airlines to your destination round-trip include Aer Lingus and Lufthansa. Users have found that Icelandair is 31% 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 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 $50 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, January is the cheapest month in which you can book a flight from Seattle to Glasgow (average of $449). 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$213Average$1,004FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$485Average$711FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$618Average$974FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$652Average$801FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$668Average$852FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$669Average$891FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$673Average$978FlexibilityNo cancel feeOn-time76%
DeltaCheapest$675Average$1,043FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$736Average$927FlexibilityNo cancel feeOn-time77%
KLMCheapest$764Average$1,138FlexibilityNo cancel feeOn-time75%

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