How long is the flight from Glasgow Intl Airport to Seattle?

A quick flight from Glasgow Intl Airport to Seattle can take about 13h 05m. Icelandair provides one of the quickest options available for as low as £663. Airlines will cover a distance of 4445 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

Our cheapest airline available from Glasgow Intl Airport to Seattle is Icelandair. Our recent data shows that you can find tickets from as low as £445 on this airline. Additional options worth looking into are British Airways and Aer Lingus, starting at £511 and £608 round-trip. Users have found that Icelandair is 31% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular airlines that fly from Glasgow Intl Airport to Seattle?

Icelandair, British Airways and Aer Lingus are the most popular airlines when flying from Glasgow Intl Airport to Seattle.

What is the cheapest time of day to fly from GLA to SEA?

When flying from Glasgow Intl Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from Glasgow Intl. Booking flights from Glasgow Intl to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 0 daily inbound flights from Glasgow Intl from 3 different airlines.

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

Yes. In addition to deals on Glasgow Intl to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow Intl to Seattle.

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

Yes. Cheapflights offers flight deals from Glasgow Intl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£360+ Cheap Flights from Glasgow Intl Airport to Seattle

Cheap flight deals from Glasgow Intl to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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Cheapest flights from Glasgow Intl to Seattle
Explore the most affordable flight options available from Glasgow Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Thu 10/1211:55 -

1 stop13h 05m

Fri 25/1214:35 -

1 stop11h 20m

Deal found 25/10£655

Wed 9/1211:35 -

1 stop13h 25m

Fri 25/1214:35 -

1 stop11h 20m

Deal found 25/10£657

Thu 12/1111:55 -

1 stop13h 05m

Mon 16/1114:35 -

1 stop11h 20m

Deal found 28/10£663

Tue 15/1211:55 -

1 stop13h 05m

Fri 25/1214:35 -

1 stop11h 20m

Deal found 25/10£673

Sun 13/1221:25 -

1 stop25h 25m

Mon 28/1214:35 -

2 stops23h 05m

Deal found 25/10£693

Sun 13/1221:25 -

1 stop25h 25m

Fri 25/1217:52 -

2 stops54h 13m

Deal found 25/10£696

Mon 14/1208:30 -

1 stop16h 30m

Fri 25/1217:52 -

2 stops42h 48m

Deal found 25/10£702

Wed 9/1211:35 -

1 stop13h 25m

Tue 29/1214:35 -

1 stop11h 20m

Deal found 25/10£708

Sat 12/1205:40 -

2 stops19h 19m

Sun 27/1214:35 -

1 stop17h 55m

Deal found 25/10£716

Find flight deals from Glasgow Intl to Seattle

Round-trip from	£655
One-way from	£360
Popular in	May
Cheapest in	January
Average price	£629

Icelandair
10/12-25/12
2 total stops
24h 25m total
Glasgow to Seattle

Search Deals

8/12-31/12
3 total stops
50h 55m total
Glasgow to Seattle

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£15 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 8/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£481

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 8/12

15:55-17:00

2 stops57h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£504

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sun 3/1

21:25-17:00

3 stops51h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£579

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Thu 12/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Mon 16/11

14:35-09:55

1 stop11h 20m

£663

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 15/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Fri 25/12

14:35-09:55

1 stop11h 20m

£673

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Wed 16/12

16:35-11:25

1 stop26h 50m

Seattle/Tacoma Intl

Sat 23/1

13:40-13:20

1 stop15h 40m

£740

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Wed 9/12

19:15-11:25

1 stop24h 10m

Seattle/Tacoma Intl

Mon 28/12

18:45-18:25

1 stop15h 40m

£744

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 10/4

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

Fri 23/4

19:00-13:25

1 stop10h 25m

£753

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 30/3

13:30-11:33

1 stop30h 03m

Seattle/Tacoma Intl

Tue 27/4

13:30-16:15

2 stops18h 45m

£761

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 19/12

06:35-11:25

1 stop12h 50m

Seattle/Tacoma Intl

Sat 23/1

18:45-17:10

1 stop14h 25m

£908

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 12 resultsSorted by cheapest first

Best time to book a flight from Glasgow Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Glasgow Intl with our price prediction graph.

GLA-SEA

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 Glasgow Intl Airport to Seattle

What’s the top stopover airport for flights from Glasgow Intl Airport to Seattle?

Reykjavik (KEF) – chosen by Cheapflights users on 66% of one-stop itineraries from Glasgow Intl Airport to Seattle on Cheapflights.

What’s the cheapest stopover airport for flights from Glasgow Intl Airport to Seattle?

Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £603.

What’s the fastest stopover option from Glasgow Intl Airport to Seattle?

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 13h 10m.

Which airport typically offers the quickest stopover for flights from Glasgow Intl Airport to Seattle?

Flights via Dublin (DUB) offer the fastest connection on this route, with an average stopover time of 2h 04m.

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Aer Lingus,Icelandair, andBritish Airways from Glasgow Intl Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aer Lingus

7.3

Good

1,869 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Aer Lingus

7.3

Good

1,869 reviews

Aer Lingus

7.3

Good

1,869 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Icelandair

6.9

Okay

764 reviews

Aer Lingus

7.3

Good

1,869 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

British Airways

6.7

Okay

8,277 reviews

Aer Lingus

7.3

Good

1,869 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Related info for your journey

What airport do you fly into for flights to Seattle from Glasgow Intl?
Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from Glasgow Intl. Booking flights from Glasgow Intl to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 0 daily inbound flights from Glasgow Intl from 3 different airlines.
How long is the flight from Glasgow Intl Airport to Seattle?
A quick flight from Glasgow Intl Airport to Seattle can take about 13h 05m. Icelandair provides one of the quickest options available for as low as £663. Airlines will cover a distance of 4445 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Glasgow Intl Airport to Seattle round-trip?
Our cheapest airline available from Glasgow Intl Airport to Seattle is Icelandair. Our recent data shows that you can find tickets from as low as £445 on this airline. Additional options worth looking into are British Airways and Aer Lingus, starting at £511 and £608 round-trip. Users have found that Icelandair is 31% cheaper than the other options available to this destination.
Can I find deals for flights from Glasgow Intl to Seattle that include hotel bookings?
Yes. In addition to deals on Glasgow Intl to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Glasgow Intl to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow Intl to Seattle.
Can I find deals for business class flights from Glasgow Intl to Seattle?
Yes. Cheapflights offers flight deals from Glasgow Intl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 3 airlines flying from Glasgow Intl to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£445	Average£628	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£511	Average£678	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£608	Average£765	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Glasgow Intl to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights simply makes it quick and affordable to book flights from Glasgow Intl to Seattle 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 Glasgow Intl to Seattle with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Glasgow Intl to Seattle, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Glasgow Intl to Seattle 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 Glasgow Intl Airport to Seattle from £360

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Glasgow Intl to Seattle

Cheapest flights from Glasgow Intl to SeattleExplore the most affordable flight options available from Glasgow Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from Glasgow Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Glasgow Intl to SeattleDiscover carefully curated flight deals from Glasgow Intl to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Glasgow Intl to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Glasgow Intl to SeattleDiscover last-minute flight deals from Glasgow Intl to Seattle. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Glasgow Intl to Seattle. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Glasgow Intl to SeattleSearch for one-way flight options from Glasgow Intl to Seattle. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Glasgow Intl to Seattle. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from Glasgow Intl to Seattle

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Cheapflights Fare Finder

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

Best time to book a flight from Glasgow Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Glasgow Intl with our price prediction graph.

Cheapflights Insights

What’s the top stopover airport for flights from Glasgow Intl Airport to Seattle?

Reykjavik (KEF) – chosen by Cheapflights users on 66% of one-stop itineraries from Glasgow Intl Airport to Seattle on Cheapflights.

What’s the cheapest stopover airport for flights from Glasgow Intl Airport to Seattle?

Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £603.

What’s the fastest stopover option from Glasgow Intl Airport to Seattle?

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 13h 10m.

Which airport typically offers the quickest stopover for flights from Glasgow Intl Airport to Seattle?

Flights via Dublin (DUB) offer the fastest connection on this route, with an average stopover time of 2h 04m.

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Aer Lingus,Icelandair, andBritish Airways from Glasgow Intl Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from Glasgow Intl Airport to Seattle?

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

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

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

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

Travelling to a place near Seattle?

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Alternative routes for Glasgow Intl to Seattle

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Complete your trip

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Direct flights to Washington

Book a non-stop flight to one of these other cities located in Washington.

Search flights from Glasgow Intl to Seattle by cabin class

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Glasgow Intl and Seattle flights

Browse other Glasgow Intl and Seattle flight options. Last updated on 30 October 2026.

Other flights from Glasgow Intl

Browse through other flights departing from Glasgow Intl. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.

Popular flight searches

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Other flights to Seattle

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Top 3 airlines flying from Glasgow Intl to Seattle

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

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

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Cheapest flights from Glasgow Intl to Seattle
Explore the most affordable flight options available from Glasgow Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Glasgow Intl to Seattle
Discover carefully curated flight deals from Glasgow Intl to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Glasgow Intl to Seattle
Discover last-minute flight deals from Glasgow Intl to Seattle. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Glasgow Intl to Seattle
Search for one-way flight options from Glasgow Intl to Seattle. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.