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Glasgow Intl

$299+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 34 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 June 12, 2025.

Round-trip from

$657
(CrystalTravel)

One-way from

$299
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$1,253
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. 16% potential increase in price ($174 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This CrystalTravel deal was found by Cheapflights users on 6/11. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/83:45 pmSEA - GLA
1 stop13h 40mIcelandair
Wed 10/2912:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 6/11$657
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:35 pmSEA - GLA
1 stop11h 50mAer Lingus
Fri 8/151:05 pmGLA - SEA
1 stop12h 45mAer Lingus
Deal found 6/12$689
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:30 pmSEA - GLA
1 stop15h 20mAmerican Airlines
Mon 10/63:25 pmGLA - SEA
1 stop27h 45mAmerican Airlines
Deal found 6/12$711
This Iberia deal was found by Cheapflights users on 6/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/253:10 pmSEA - GLA
2 stops24h 15mIberia
Wed 9/245:40 pmGLA - SEA
1 stop25h 55mIberia
Deal found 6/10$725
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/273:45 pmSEA - GLA
2 stops21h 40mMultiple Airlines
Tue 8/57:35 amGLA - SEA
2 stops18h 15mMultiple Airlines
Deal found 6/10$729
This Delta deal was found by Cheapflights users on 6/12. 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.
Wed 9/1012:15 pmSEA - GLA
2 stops19h 55mDelta
Thu 9/186:00 amGLA - SEA
1 stop13h 45mDelta
Deal found 6/12$734
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/222:20 pmSEA - GLA
1 stop14h 00mLufthansa
Fri 10/176:10 amGLA - SEA
2 stops20h 26mLufthansa
Deal found 6/11$739
This British Airways deal was found by Cheapflights users on 6/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:20 pmSEA - GLA
1 stop12h 05mBritish Airways
Mon 10/275:30 pmGLA - SEA
1 stop31h 25mBritish Airways
Deal found 6/11$742
This KLM deal was found by Cheapflights users on 6/10. 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.
Mon 7/72:05 pmSEA - GLA
1 stop34h 20mKLM
Mon 7/211:30 pmGLA - SEA
1 stop30h 05mKLM
Deal found 6/10$850

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 June 12, 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 8/20

11:30 pm-1:25 pm

1 stop29h 55m

Glasgow Intl

Thu 8/28

2:20 pm-11:25 am

1 stop29h 05m

$661

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 8/6

7:35 pm-3:25 pm

1 stop11h 50m

Glasgow Intl

Fri 8/15

1:05 pm-5:50 pm

1 stop12h 45m

$689

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 8/19

3:09 pm-4:45 pm

2 stops17h 36m

Glasgow Intl

Mon 9/1

3:25 pm-11:10 am

1 stop27h 45m

$716

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 8/25

3:10 pm-11:25 pm

2 stops24h 15m

Glasgow Intl

Wed 9/24

5:40 pm-11:35 am

1 stop25h 55m

$725

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 7/27

3:45 pm-9:25 pm

2 stops21h 40m

Glasgow Intl

Tue 8/5

7:35 am-5:50 pm

2 stops18h 15m

$729

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 9/10

12:15 pm-4:10 pm

2 stops19h 55m

Glasgow Intl

Thu 9/18

6:00 am-11:45 am

1 stop13h 45m

$734

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 8/26

7:00 am-11:00 pm

2 stops32h 00m

Glasgow Intl

Fri 9/26

6:10 am-11:55 am

1 stop13h 45m

$748

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 8/19

3:09 pm-4:45 pm

2 stops17h 36m

Glasgow Intl

Mon 9/1

8:50 pm-11:40 pm

2 stops34h 50m

$756

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 7/7

2:05 pm-8:25 am

1 stop34h 20m

Glasgow Intl

Mon 7/21

1:30 pm-11:35 am

1 stop30h 05m

$850

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 9/9

7:00 pm-1:25 pm

1 stop10h 25m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 14 results
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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 June 9, 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 34 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 $1,160). 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 June 12, 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.

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

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

Travelers seeking maximum savings on their Seattle to Glasgow Intl Airport 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 Intl by month

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

In terms of precipitation, rainfall in Glasgow Intl Airport 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 Intl Airport when rainfall is around 1.3 in.

Temperature in Glasgow Intl by month

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

If weather is an important factor for your trip to Glasgow Intl Airport, 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 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 June 12, 2025.
To help decide which airline to fly from Seattle to Glasgow, see what other customers have to say about Delta, KLM and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
1,117 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
499 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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 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 $657. Other airlines that can offer you cheap pricing are American Airlines, from $716, and Iberia, from $725. Icelandair is currently priced 23% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $299. British Airways flights start at $456 while deals on Aer Lingus start at $555 one-way.

  • 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 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 $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 $1,160). 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.

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$559Average$804FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$666Average$982FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$671Average$898FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$689Average$800FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$710Average$933FlexibilityNo cancel feeOn-time70%
DeltaCheapest$710Average$995FlexibilityNo cancel feeOn-timeN/A

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