What is the cheapest airline that flies from Glasgow to Seattle/Tacoma Intl?

Icelandair, WestJet, and British Airways are the most popular carriers operating from Glasgow to Seattle/Tacoma Intl

When did momondo last update prices for flights from Glasgow to Seattle/Tacoma Intl Airport?

Prices for flights from Glasgow to Seattle/Tacoma Intl Airport were last updated today.

How many operators does momondo search for flights from Glasgow to Seattle/Tacoma Intl Airport?

As of December 2025, there is 1 operator available to choose from for flights from Glasgow to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Glasgow to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Glasgow to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$514 Cheap Flights from Glasgow to Seattle in 2025/26

Q: What is the typical price of a round-trip flight between Glasgow and Seattle?

Prices are currently low for flights on this route. Typical prices usually range from $814 to $1,216. The lowest price recently found on this route was $753.

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Find the cheapest flights from Glasgow to Seattle

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:35 pm - 5:00 pm

GLA

SEA

12h 25m1 stop

2:35 pm - 9:55 am

SEA

GLA

11h 20m1 stop

$753Icelandair

mié., ene. 14 - mié., ene. 28

12:35 pm - 5:00 pm

GLA

SEA

12h 25m1 stop

2:35 pm - 9:55 am

SEA

GLA

11h 20m1 stop

$798Icelandair

vie., feb. 6 - vie., feb. 20

12:35 pm - 5:00 pm

GLA

SEA

12h 25m1 stop

2:35 pm - 9:55 am

SEA

GLA

11h 20m1 stop

$813Icelandair

dom., ene. 18 - dom., feb. 1

2:00 pm - 4:55 pm

GLA

SEA

34h 55m1 stop

6:50 pm - 3:50 pm

SEA

GLA

13h 00m1 stop

$814American Airlines

mar., ene. 20 - mié., feb. 4

7:10 pm - 4:55 pm

GLA

SEA

29h 45m1 stop

6:50 pm - 3:50 pm

SEA

GLA

13h 00m1 stop

$818British Airways

mar., ene. 13 - mié., ene. 28

8:25 am - 5:00 pm

GLA

SEA

16h 35m2 stops

2:35 pm - 8:00 pm

SEA

GLA

21h 25m2 stops

$819Multiple Airlines

vie., ene. 23 - vie., ene. 30

8:55 am - 10:20 pm

GLA

SEA

21h 25m2 stops

6:50 pm - 4:35 pm

SEA

GLA

13h 45m1 stop

$820American Airlines

lun., ene. 19 - lun., feb. 2

6:35 am - 10:07 pm

GLA

SEA

23h 32m2 stops

6:50 pm - 4:35 pm

SEA

GLA

13h 45m1 stop

$825American Airlines

lun., ene. 12 - lun., ene. 26

6:35 am - 11:30 am

GLA

SEA

12h 55m1 stop

6:50 pm - 4:35 pm

SEA

GLA

13h 45m1 stop

$828British Airways

vie., ene. 16 - lun., feb. 2

12:35 pm - 5:00 pm

GLA

SEA

12h 25m1 stop

2:35 pm - 9:55 am

SEA

GLA

11h 20m1 stop

$835Icelandair

sáb., feb. 7 - sáb., feb. 21

Icelandair flights from Glasgow to Seattle

Our best Icelandair deals on Glasgow to Seattle flight tickets

Icelandair

Jan 14

GLA12:35 pmGlasgow Intl

12h 25m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Jan 28

SEA2:35 pmSeattle/Tacoma Intl

11h 20m

1 stop

GLA9:55 amGlasgow Intl

$753

Find similar

Icelandair

Feb 6

GLA12:35 pmGlasgow Intl

12h 25m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Feb 20

SEA2:35 pmSeattle/Tacoma Intl

11h 20m

1 stop

GLA9:55 amGlasgow Intl

$798

Find similar

Icelandair

Jan 18

GLA12:35 pmGlasgow Intl

12h 25m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Feb 1

SEA2:35 pmSeattle/Tacoma Intl

11h 20m

1 stop

GLA9:55 amGlasgow Intl

$813

Find similar

American Airlines flights from Glasgow to Seattle

Our best American Airlines deals on Glasgow to Seattle flight tickets

American Airlines

Jan 20

GLA2:00 pmGlasgow Intl

34h 55m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

Feb 4

SEA6:50 pmSeattle/Tacoma Intl

13h 00m

1 stop

GLA3:50 pmGlasgow Intl

$814

Find similar

American Airlines

Jan 19

GLA8:55 amGlasgow Intl

21h 25m

2 stops

SEA10:20 pmSeattle/Tacoma Intl

Feb 2

SEA6:50 pmSeattle/Tacoma Intl

13h 45m

1 stop

GLA4:35 pmGlasgow Intl

$820

Find similar

American Airlines

Jan 12

GLA6:35 amGlasgow Intl

23h 32m

2 stops

SEA10:07 pmSeattle/Tacoma Intl

Jan 26

SEA6:50 pmSeattle/Tacoma Intl

13h 45m

1 stop

GLA4:35 pmGlasgow Intl

$825

Find similar

Fly from

Fly to

Route

Depart

Return

Price

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

mié. 1/14

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

mié. 1/28

2:35 pm-9:55 am

1 stop11h 20m

$753

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

vie. 2/6

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

vie. 2/20

2:35 pm-9:55 am

1 stop11h 20m

$798

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

dom. 1/18

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

dom. 2/1

2:35 pm-9:55 am

1 stop11h 20m

$813

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

mar. 1/20

2:00 pm-4:55 pm

1 stop34h 55m

Seattle/Tacoma Intl

mié. 2/4

6:50 pm-3:50 pm

1 stop13h 00m

$814

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

mar. 1/13

7:10 pm-4:55 pm

1 stop29h 45m

Seattle/Tacoma Intl

mié. 1/28

6:50 pm-3:50 pm

1 stop13h 00m

$818

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

vie. 1/23

8:25 am-5:00 pm

2 stops16h 35m

Seattle/Tacoma Intl

vie. 1/30

2:35 pm-8:00 pm

2 stops21h 25m

$819

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

lun. 1/19

8:55 am-10:20 pm

2 stops21h 25m

Seattle/Tacoma Intl

lun. 2/2

6:50 pm-4:35 pm

1 stop13h 45m

$820

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

lun. 1/12

6:35 am-10:07 pm

2 stops23h 32m

Seattle/Tacoma Intl

lun. 1/26

6:50 pm-4:35 pm

1 stop13h 45m

$825

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

vie. 1/16

6:35 am-11:30 am

1 stop12h 55m

Seattle/Tacoma Intl

lun. 2/2

6:50 pm-4:35 pm

1 stop13h 45m

$828

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

sáb. 2/7

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

sáb. 2/21

2:35 pm-9:55 am

1 stop11h 20m

$835

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Glasgow to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Glasgow and Seattle?

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Glasgow to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $656. If you don’t want to visit Seattle in January, then you should wait until September to fly from Glasgow, when ticket prices are also cheap, with an average price of $696.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Glasgow is on a Monday. momondo users have found tickets for Monday departures for as low as $641. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Glasgow because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,356.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Glasgow at noon is the least expensive time of day to depart. momondo users have found prices as low as $924 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $1,024. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Glasgow when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $825 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Glasgow for as low as $759 on momondo.

Cheap Glasgow to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Glasgow to Seattle

Fastest flight time	12h 25m
Direct flights	None

The fastest flight from Glasgow to Seattle takes 12h 25m

There are no direct flights from Glasgow to Seattle. There are no popular flight routes from Glasgow to Seattle.

Search flight deals

How far is Glasgow to Seattle/Tacoma Intl by plane?
The distance between Glasgow and Seattle/Tacoma Intl is about 4441.7 mi. 12h 25m is a normal flight duration for this route.
When did momondo last update prices for flights from Glasgow to Seattle/Tacoma Intl Airport?
Prices for flights from Glasgow to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Glasgow to Seattle/Tacoma Intl Airport?
As of December 2025, there is 1 operator available to choose from for flights from Glasgow to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Glasgow to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Glasgow to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Glasgow to Seattle

Compare and see reviews for airlines that fly from Glasgow to Seattle with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 7,573 reviews		Search British Airways flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Cle Elum

Federal Way

Lakewood

Fife

Westport

Kirkland

Centralia

Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Glasgow to Seattle?

It is quick and easy to find Glasgow to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

Can I find flights from Glasgow to Seattle with flexible booking policies on momondo?

All flight searches from Glasgow to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Glasgow to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Glasgow.

I’m not ready to book a flight from Glasgow to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Glasgow and alert you when they change.