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

Reykjavik (KEF) – chosen by Cheapflights users on 63% of one-stop itineraries from Glasgow Intl Airport to Seattle on Cheapflights.

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

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 17m.

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 £592.

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

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 11h 57m.

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

A quick flight from Glasgow Intl Airport to Seattle can take about 13h 10m. British Airways provides one of the quickest options available for as low as £553. 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 £444 on this airline. Additional options worth looking into are British Airways and Aer Lingus, starting at £546 and £606 round-trip. Users have found that Icelandair is 30% 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.

£345+ 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

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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 19 September 2026.

Thu 22/1014:20 -

1 stop11h 35m

Thu 29/1015:35 -

1 stop11h 20m

Deal found 15/9£489

Fri 13/1110:55 -

1 stop13h 55m

Mon 30/1118:45 -

1 stop15h 40m

Deal found 14/9£540

Sat 10/1021:25 -

1 stop27h 45m

Sat 7/1118:45 -

1 stop14h 25m

Deal found 14/9£545

Mon 2/1106:00 -

2 stops18h 37m

Mon 9/1114:35 -

1 stop23h 35m

Deal found 18/9£546

Sun 1/1111:40 -

2 stops20h 02m

Sun 8/1118:45 -

1 stop16h 35m

Deal found 17/9£551

Sat 17/1012:00 -

1 stop13h 10m

Tue 20/1013:30 -

1 stop13h 15m

Deal found 19/9£553

Tue 6/1009:10 -

1 stop15h 25m

Tue 27/1015:25 -

1 stop14h 20m

Deal found 18/9£554

Find flight deals from Glasgow Intl to Seattle

Round-trip from	£489
One-way from	£345
Popular in	May
Cheapest in	January
Average price	£677

Icelandair
22/10-29/10
2 total stops
22h 55m total
Glasgow to Seattle

Search Deals

8/11-31/12
2 total stops
49h 00m total
Glasgow to Seattle

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£19 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 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

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 12/12

06:35-20:19

2 stops21h 44m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£445

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Fri 6/11

16:00-11:25

1 stop27h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£457

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Thu 12/11

11:30-16:50

1 stop13h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£457

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 29/9

20:40-17:55

3 stops53h 15m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£458

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 17/10

12:00-17:10

1 stop13h 10m

Seattle/Tacoma Intl

Tue 20/10

13:30-10:45

1 stop13h 15m

£553

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 6/10

09:10-16:35

1 stop15h 25m

Seattle/Tacoma Intl

Tue 27/10

15:25-12:45

1 stop14h 20m

£554

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Mon 2/11

06:00-16:45

2 stops18h 45m

Seattle/Tacoma Intl

Mon 9/11

09:40-12:45

2 stops19h 05m

£559

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 31/10

06:35-12:25

1 stop12h 50m

Seattle/Tacoma Intl

Sat 7/11

09:15-10:50

2 stops17h 35m

£565

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 24/10

08:35-17:10

1 stop16h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£569

Fastest return journey

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 14/11

11:40-16:50

1 stop13h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£582

Flights are sorted by cheapest return flights first.

Deals found on 19/9

Showing 1-10 of 13 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

Prices

Airfare is below average for this route at the moment.

Glasgow Intl Airport to Seattle flights typically cost between £622 and £743 in October.
The cheapest return price found within the last 5 days was £489 on Icelandair (22 Oct–29 Oct).

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

1,768 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.

Aer Lingus

7.3

Good

1,768 reviews

Aer Lingus

7.3

Good

1,768 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.

Icelandair

6.9

Okay

747 reviews

Aer Lingus

7.3

Good

1,768 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.

British Airways

6.7

Okay

8,228 reviews

Aer Lingus

7.3

Good

1,768 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.

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 10m. British Airways provides one of the quickest options available for as low as £553. 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 £444 on this airline. Additional options worth looking into are British Airways and Aer Lingus, starting at £546 and £606 round-trip. Users have found that Icelandair is 30% 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.

See more FAQs

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Top 3 airlines flying from Glasgow Intl to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£444	Average£629	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£546	Average£764	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£606	Average£763	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 £345

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. 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 19 September 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 19 September 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 19 September 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 19 September 2026.

Last-minute flights from Glasgow Intl to SeattleDiscover last-minute flight deals from Glasgow Intl to Seattle. Data last updated 19 September 2026 and is based on user searches.

Discover last-minute flight deals from Glasgow Intl to Seattle. Data last updated 19 September 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 19 September 2026.

Search for one-way flight options from Glasgow Intl to Seattle. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Find flight deals from Glasgow Intl to Seattle

Round-trip from

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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

How much does it cost for a return flight from Glasgow Intl Airport to Seattle?

Airfare is below average for this route at the moment.

Glasgow Intl Airport to Seattle flights typically cost between £622 and £743 in October.The cheapest return price found within the last 5 days was £489 on Icelandair (22 Oct–29 Oct).

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

Reykjavik (KEF) – chosen by Cheapflights users on 63% 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 £592.

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

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 11h 57m.

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

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 17m.

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

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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 19 September 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 19 September 2026.

Popular flight searches

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Other flights to Seattle

Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 19 September 2026.

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?

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

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

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 19 September 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 19 September 2026.

Last-minute flights from Glasgow Intl to Seattle
Discover last-minute flight deals from Glasgow Intl to Seattle. Data last updated 19 September 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 19 September 2026.

Glasgow Intl Airport to Seattle flights typically cost between £622 and £743 in October.
The cheapest return price found within the last 5 days was £489 on Icelandair (22 Oct–29 Oct).