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

Our cheapest airline available from Seattle to Glasgow Intl Airport is Icelandair. Our recent data shows that you can find tickets from as low as £472 on this airline. Additional options worth looking into are British Airways and KLM, starting at £555 and £577 round-trip. Icelandair is currently priced 31% 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?

For one-way options, check prices for Icelandair. According to our data, you can fly for as low as £328. Users have also found prices from £356 and £373 on British Airways and Aer Lingus, respectively.

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

Travellers seeking maximum savings on their Seattle to Glasgow Intl Airport flight should consider departing on Wednesday at midday 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.

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

Tuesday is generally a great day to depart. Flying on this day could help you save up to 69%.

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

Flights from Seattle to Glasgow Intl Airport lean towards being more expensive in June. Prices are generally better when you fly from Seattle to Glasgow Intl Airport in November, with the cheapest ticket starting at £466.

What airport do you fly from for flights from Seattle to Glasgow Intl?

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Glasgow Intl. On average, Seattle/Tacoma Intl has 0 outbound flights to Glasgow Intl per day from 2 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

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 holiday 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.

£241+ Flights from Seattle to Glasgow Intl Airport

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Glasgow Intl are usually found in November or February, booked 73 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Glasgow Intl

Round-trip from	£472
One-way from	£241
Popular in	June
Cheapest in	November
Average price	£567

Icelandair
6/5-20/5
2 total stops
25h 10m total
Seattle to Glasgow

Search Deals

10/7
2 total stops
50h 25m total
Seattle to Glasgow

Search Deals

Highest demand for flights based on searches. 23% potential increase in price (£168 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (£37 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

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 26 March 2025.

Sun 12/1015:45SEA - GLA

1 stop13h 40mIcelandair

Sun 19/1014:20GLA - SEA

1 stop11h 30mIcelandair

Deal found 25/3£470

Mon 19/519:00SEA - GLA

2 stops17h 45mMultiple Airlines

Mon 26/514:20GLA - SEA

2 stops38h 08mMultiple Airlines

Deal found 24/3£501

Mon 14/420:20SEA - GLA

1 stop12h 25mBritish Airways

Mon 21/419:30GLA - SEA

1 stop23h 40mBritish Airways

Deal found 24/3£555

Thu 15/518:10SEA - GLA

1 stop21h 00mKLM

Wed 21/506:00GLA - SEA

1 stop13h 40mKLM

Deal found 24/3£577

Mon 6/1015:13SEA - GLA

2 stops17h 12mAmerican Airlines

Fri 24/1005:50GLA - SEA

1 stop13h 45mAmerican Airlines

Deal found 25/3£594

Mon 19/507:16SEA - GLA

2 stops21h 44mDelta

Mon 26/506:00GLA - SEA

1 stop13h 40mDelta

Deal found 24/3£601

Wed 17/907:00SEA - GLA

2 stops21h 25mLufthansa

Fri 3/1006:10GLA - SEA

2 stops18h 49mLufthansa

Deal found 25/3£636

Mon 21/420:20SEA - GLA

1 stop15h 20mIberia

Wed 30/408:40GLA - SEA

2 stops22h 29mIberia

Deal found 25/3£646

Thu 10/406:08SEA - GLA

2 stops49h 12mAer Lingus

Wed 23/412:00GLA - SEA

1 stop12h 59mAer Lingus

Deal found 25/3£761

Sat 5/413:35SEA - GLA

2 stops17h 20mFinnair

Thu 10/411:30GLA - SEA

1 stop14h 50mFinnair

Deal found 25/3£781

Best flights from Seattle to Glasgow Intl
Discover carefully curated flight deals from Seattle to Glasgow Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 March 2025.

Tue 6/515:45SEA - GLA

1 stop13h 40mIcelandair

Tue 20/514:20GLA - SEA

1 stop11h 30mIcelandair

Deal found 25/3£472

Mon 19/519:00SEA - GLA

2 stops17h 45mMultiple Airlines

Mon 26/514:20GLA - SEA

2 stops38h 08mMultiple Airlines

Deal found 24/3£501

Mon 14/420:20SEA - GLA

1 stop12h 25mBritish Airways

Mon 21/419:30GLA - SEA

1 stop23h 40mBritish Airways

Deal found 24/3£555

Thu 15/518:10SEA - GLA

1 stop21h 00mKLM

Wed 21/506:00GLA - SEA

1 stop13h 40mKLM

Deal found 24/3£577

Mon 19/507:16SEA - GLA

2 stops21h 44mDelta

Mon 26/506:00GLA - SEA

1 stop13h 40mDelta

Deal found 24/3£601

Sun 11/520:20SEA - GLA

1 stop17h 10mAmerican Airlines

Mon 19/505:50GLA - SEA

2 stops18h 10mAmerican Airlines

Deal found 25/3£603

Wed 17/907:00SEA - GLA

2 stops21h 25mLufthansa

Fri 3/1006:10GLA - SEA

2 stops18h 49mLufthansa

Deal found 25/3£636

Mon 21/420:20SEA - GLA

1 stop15h 20mIberia

Wed 30/408:40GLA - SEA

2 stops22h 29mIberia

Deal found 25/3£646

Thu 10/406:08SEA - GLA

2 stops49h 12mAer Lingus

Wed 23/412:00GLA - SEA

1 stop12h 59mAer Lingus

Deal found 25/3£761

Sat 5/413:35SEA - GLA

2 stops17h 20mFinnair

Thu 10/411:30GLA - SEA

1 stop14h 50mFinnair

Deal found 25/3£781

Thu 26/617:35SEA - GLA

1 stop14h 35mAir France

Mon 7/709:10GLA - SEA

2 stops42h 29mAir France

Deal found 25/3£971

Last-minute flights from Seattle to Glasgow Intl
Discover last-minute flight deals from Seattle to Glasgow Intl. Data last updated 26 March 2025 and is based on user searches.

Sat 29/315:00SEA - GLA

1 stop13h 20mLufthansa

Mon 31/306:10GLA - SEA

2 stops22h 18mLufthansa

Deal found 25/3£737

Sat 5/413:35SEA - GLA

2 stops17h 20mFinnair

Thu 10/411:30GLA - SEA

1 stop14h 50mFinnair

Deal found 25/3£781

Thu 10/406:08SEA - GLA

2 stops49h 12mAer Lingus

Wed 23/412:00GLA - SEA

1 stop12h 59mAer Lingus

Deal found 25/3£761

Mon 14/420:20SEA - GLA

1 stop12h 25mBritish Airways

Mon 21/419:30GLA - SEA

1 stop23h 40mBritish Airways

Deal found 24/3£555

Mon 21/415:45SEA - GLA

1 stop13h 40mIcelandair

Wed 30/414:20GLA - SEA

1 stop11h 30mIcelandair

Deal found 25/3£572

Mon 21/420:20SEA - GLA

1 stop15h 20mIberia

Wed 30/408:40GLA - SEA

2 stops22h 29mIberia

Deal found 25/3£646

Thu 24/407:15SEA - GLA

2 stops21h 45mDelta

Fri 2/508:55GLA - SEA

2 stops19h 50mDelta

Deal found 25/3£662

Fri 25/415:45SEA - GLA

2 stops20h 10mMultiple Airlines

Sun 4/508:35GLA - SEA

3 stops41h 58mMultiple Airlines

Deal found 25/3£627

Fri 25/418:10SEA - GLA

1 stop31h 35mKLM

Sun 4/506:00GLA - SEA

1 stop17h 57mKLM

Deal found 25/3£689

Sat 26/413:35SEA - GLA

2 stops17h 20mAmerican Airlines

Sat 3/506:55GLA - SEA

2 stops17h 05mAmerican Airlines

Deal found 25/3£676

One-way flights from Seattle to Glasgow Intl
Search for one-way flight options from Seattle to Glasgow Intl. Find affordable one-way fares based on user searches. Data last updated 26 March 2025.

Thu 10/723:30SEA - GLA

2 stops50h 25mMultiple Airlines

Deal found 25/3£241

Mon 1/923:30SEA - GLA

1 stop29h 55mIcelandair

Deal found 25/3£328

Thu 10/720:20SEA - GLA

1 stop14h 20mBritish Airways

Deal found 25/3£356

Sat 19/423:55SEA - GLA

2 stops25h 25mAer Lingus

Deal found 25/3£373

Fri 9/518:07SEA - GLA

1 stop14h 03mDelta

Deal found 25/3£531

Wed 14/511:20SEA - GLA

2 stops23h 20mAmerican Airlines

Deal found 25/3£2,817

Fri 16/518:50SEA - GLA

2 stops20h 15mLufthansa

Deal found 25/3£3,036

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Glasgow Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 6/5

15:45-13:25

1 stop13h 40m

Glasgow Intl

Tue 20/5

14:20-17:50

1 stop11h 30m

£472

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 19/5

19:00-20:45

2 stops17h 45m

Glasgow Intl

Mon 26/5

14:20-20:28

2 stops38h 08m

£501

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 14/4

20:20-16:45

1 stop12h 25m

Glasgow Intl

Mon 21/4

19:30-11:10

1 stop23h 40m

£555

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Thu 15/5

18:10-23:10

1 stop21h 00m

Glasgow Intl

Wed 21/5

06:00-11:40

1 stop13h 40m

£577

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 19/5

07:16-13:00

2 stops21h 44m

Glasgow Intl

Mon 26/5

06:00-11:40

1 stop13h 40m

£601

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 11/5

20:20-21:30

1 stop17h 10m

Glasgow Intl

Mon 19/5

05:50-16:00

2 stops18h 10m

£603

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 17/9

07:00-12:25

2 stops21h 25m

Glasgow Intl

Fri 3/10

06:10-16:59

2 stops18h 49m

£636

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 21/4

20:20-19:40

1 stop15h 20m

Glasgow Intl

Wed 30/4

08:40-23:09

2 stops22h 29m

£646

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Thu 10/4

06:08-15:20

2 stops49h 12m

Glasgow Intl

Wed 23/4

12:00-16:59

1 stop12h 59m

£761

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 5/4

13:35-14:55

2 stops17h 20m

Glasgow Intl

Thu 10/4

11:30-18:20

1 stop14h 50m

£781

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 18 results

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 return 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?

To ensure you get the cheapest price possible for a flight from Seattle to Glasgow Intl Airport, you should look to book at least 73 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, January is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of £97). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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?

It’s typically best to fly out from Seattle to Glasgow Intl Airport in the morning. Doing so could potentially save you 10% on the flight price compared to flying at midday, which is usually more expensive.

Rainfall in Glasgow Intl by month

In terms of precipitation, rainfall in Glasgow Intl Airport ranges from 33.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. May is typically the driest time to visit Glasgow Intl Airport when rainfall is around 33.0 mm.

Temperature in Glasgow Intl 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Glasgow Intl

Delta

8.0

Very Good

7,891 reviews

Check prices

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

7,891 reviews

Delta

8.0

Very Good

7,891 reviews

Check prices

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

1,319 reviews

Delta

8.0

Very Good

7,891 reviews

Check prices

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.

Finnair

7.6

Good

1,266 reviews

Delta

8.0

Very Good

7,891 reviews

Check prices

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.

Air France

7.4

Good

1,423 reviews

Delta

8.0

Very Good

7,891 reviews

Check prices

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

7,891 reviews

Check prices

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

What airport do you fly from for flights from Seattle to Glasgow Intl?
Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Glasgow Intl. On average, Seattle/Tacoma Intl has 0 outbound flights to Glasgow Intl per day from 2 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.
What are the cheapest airlines flying from Seattle to Glasgow Intl Airport round-trip?
Our cheapest airline available from Seattle to Glasgow Intl Airport is Icelandair. Our recent data shows that you can find tickets from as low as £472 on this airline. Additional options worth looking into are British Airways and KLM, starting at £555 and £577 round-trip. Icelandair is currently priced 31% 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?
For one-way options, check prices for Icelandair. According to our data, you can fly for as low as £328. Users have also found prices from £356 and £373 on British Airways and Aer Lingus, respectively.
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 holiday 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, January is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of £97). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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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Dumbarton

Arrochar

Dunoon

Largs

Renfrew

Balloch

Ballachulish

Inveraray

Clydebank

Rothesay

Helensburgh

Alexandria

Tarbert

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Top 2 airlines flying from Seattle to Glasgow Intl

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£432	Average£562	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Lufthansa	Cheapest£455	Average£593	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

How does Cheapflights help users find flights from Seattle to Glasgow Intl?

When you search for this flight from Seattle to Glasgow Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Glasgow Intl?

Cheapflights simply makes it quick and affordable to book flights from Seattle to Glasgow Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Seattle to Glasgow Intl with no change fees?

Certainly. Search results for flights to Glasgow Intl from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to Glasgow Intl become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Glasgow Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Seattle to Glasgow Intl Airport from £241

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Glasgow Intl are usually found in November or February, booked 73 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Glasgow Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Seattle to Glasgow Intl

Cheapest flights from Seattle to Glasgow IntlExplore 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 26 March 2025.

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 26 March 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Glasgow Intl Airport that are best for you.

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.

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 return flight from Seattle to Glasgow Intl. Price data was last updated on 21 March 2025.

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

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 26 March 2025.

Rainfall in Glasgow Intl by month

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

Temperature in Glasgow Intl by month

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

Reviews of airlines servicing Glasgow Intl

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?

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

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

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

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

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

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

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Glasgow Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Seattle to Glasgow Intl

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Glasgow Intl?

Why should you use Cheapflights to find cheap flight tickets from Seattle to Glasgow Intl?

Can Cheapflights find flights from Seattle to Glasgow Intl with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to Glasgow Intl become cheaper?

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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 26 March 2025.