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$290+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
Jul 19 — Jul 261
Sat 7/19
Sat 7/26
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 34 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 July 14, 2025.

Round-trip from

$523
(Mytrip)

One-way from

$290
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$1,115
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. 18% potential increase in price ($190 potential increase over avg. RT price).
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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 July 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 July 14, 2025.

This Mytrip deal was found by Cheapflights users on 7/13. 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 8/67:35 pmSEA - GLA
1 stop14h 40mMultiple Airlines
Fri 8/157:55 amGLA - SEA
1 stop17h 55mMultiple Airlines
Deal found 7/13$523
This CrystalTravel deal was found by Cheapflights users on 7/12. 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.
Mon 10/133:45 pmSEA - GLA
1 stop13h 40mIcelandair
Sat 10/252:20 pmGLA - SEA
1 stop14h 20mIcelandair
Deal found 7/12$603
This Trip.com deal was found by Cheapflights users on 7/12. 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 8/67:35 pmSEA - GLA
1 stop16h 05mAer Lingus
Fri 8/1512:00 pmGLA - SEA
1 stop13h 50mAer Lingus
Deal found 7/12$640
This Delta deal was found by Cheapflights users on 7/12. 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.
Mon 9/810:15 amSEA - GLA
2 stops21h 55mDelta
Wed 9/171:30 pmGLA - SEA
1 stop34h 35mDelta
Deal found 7/12$736
This Expedia deal was found by Cheapflights users on 7/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/33:40 pmSEA - GLA
2 stops18h 10mBritish Airways
Wed 9/178:40 amGLA - SEA
2 stops19h 29mBritish Airways
Deal found 7/14$737
This Lufthansa deal was found by Cheapflights users on 7/14. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:00 amSEA - GLA
2 stops21h 20mLufthansa
Wed 10/86:10 amGLA - SEA
2 stops20h 26mLufthansa
Deal found 7/14$749
This Mytrip deal was found by Cheapflights users on 7/12. 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.
Tue 8/2610:00 amSEA - PIK
3 stops28h 50mMultiple Airlines
Tue 9/212:05 pmPIK - SEA
3 stops37h 45mMultiple Airlines
Deal found 7/12$1,131

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 July 14, 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

Wed 8/6

7:35 pm-6:15 pm

1 stop14h 40m

Glasgow Intl

Fri 8/15

7:55 am-5:50 pm

1 stop17h 55m

$523

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

$634

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 8/6

7:35 pm-7:40 pm

1 stop16h 05m

Glasgow Intl

Fri 8/15

12:00 pm-5:50 pm

1 stop13h 50m

$640

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 9/8

10:15 am-4:10 pm

2 stops21h 55m

Glasgow Intl

Thu 9/18

8:55 am-4:05 pm

1 stop15h 10m

$736

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 9/3

3:40 pm-5:50 pm

2 stops18h 10m

Glasgow Intl

Wed 9/17

8:40 am-8:09 pm

2 stops19h 29m

$737

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 9/30

7:00 am-12:20 pm

2 stops21h 20m

Glasgow Intl

Wed 10/8

6:10 am-6:36 pm

2 stops20h 26m

$749

SeattleGlasgow

SEA - PIK

SEAPIK

Seattle/Tacoma Intl

Tue 8/26

10:00 am-10:50 pm

3 stops28h 50m

Glasgow Prestwick

Tue 9/2

12:05 pm-5:50 pm

3 stops37h 45m

$1,131

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 9/10

11:30 pm-9:45 am

3 stops50h 15m

$290

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 10/7

7:00 pm-1:25 pm

1 stop10h 25m

$294

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 9/14

7:35 pm-3:25 pm

1 stop11h 50m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

Showing 1-10 of 12 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 July 11, 2025.

Booking 34 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 $1,153). 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 July 14, 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.

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 July 14, 2025.
See what other customers who have flown with Delta, 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.
Delta
8.0
Very good
7,956 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,160 reviews
Delta
8.0
Very good
7,956 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Icelandair
7.0
Good
515 reviews
Delta
8.0
Very good
7,956 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Iberia
7.0
Good
2,835 reviews
Delta
8.0
Very good
7,956 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,208 reviews
Delta
8.0
Very good
7,956 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Icelandair, at $634, was found to be the cheapest airline from Seattle to Glasgow.Alternate airlines to your destination round-trip include Aer Lingus and Delta. Users have found that Icelandair is 24% 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 $294 on Icelandair. Other airlines that offer cheap prices include Aer Lingus from $437 and British Airways from $444 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 $80 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 $1,153). 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

Browse thousands of different options on Cheapflights for your next trip

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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 July 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$550Average$778FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$621Average$1,074FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$652Average$929FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$671Average$1,009FlexibilityNo cancel feeOn-time76%
WestJetCheapest$673Average$1,146FlexibilityNo cancel feeOn-time60%
British AirwaysCheapest$673Average$948FlexibilityNo cancel feeOn-time70%
DeltaCheapest$687Average$1,045FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$689Average$892FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$756Average$1,177FlexibilityNo cancel feeOn-time72%
KLMCheapest$785Average$1,580FlexibilityNo cancel feeOn-time75%

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