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

Icelandair, Aer Lingus, 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 August 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.

$467 Cheap Flights from Glasgow to Seattle in 2025

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Find the cheapest flights from Glasgow to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

2:20 pm - 8:40 pmGLA-SEA

14h 20m1 stop

7:00 pm - 1:25 pmSEA-GLA

10h 25m1 stop

$658Icelandair

Find Deal

Mon, Sep 29 - Mon, Oct 6

2:20 pm - 5:50 pmGLA-SEA

11h 30m1 stop

7:00 pm - 1:25 pmSEA-GLA

10h 25m1 stop

$673Icelandair

Find Deal

Wed, Aug 27 - Mon, Sep 8

11:40 am - 4:55 pmGLA-SEA

13h 15m1 stop

6:50 pm - 6:15 pmSEA-GLA

15h 25m1 stop

$721British Airways

Find Deal

Tue, Dec 9 - Wed, Dec 24

6:05 am - 11:50 amGLA-SEA

13h 45m1 stop

11:35 am - 12:45 pmSEA-GLA

17h 10m2 stops

$752Delta

Find Deal

Tue, Dec 9 - Wed, Dec 24

6:00 am - 7:00 pmGLA-SEA

21h 00m2 stops

2:10 pm - 11:10 pmSEA-GLA

25h 00m1 stop

$758Virgin Atlantic

Find Deal

Mon, Sep 29 - Mon, Oct 6

8:40 am - 4:55 pmGLA-SEA

16h 15m1 stop

6:50 pm - 4:40 pmSEA-GLA

13h 50m1 stop

$761British Airways

Find Deal

Thu, Jan 1 - Thu, Jan 22

5:55 am - 4:55 pmGLA-SEA

19h 00m1 stop

6:50 pm - 4:40 pmSEA-GLA

13h 50m1 stop

$762British Airways

Find Deal

Thu, Jan 1 - Thu, Jan 22

6:00 am - 7:00 pmGLA-SEA

21h 00m2 stops

9:46 am - 1:00 pmSEA-GLA

19h 14m2 stops

$763Delta

Find Deal

Mon, Sep 29 - Mon, Oct 6

6:00 am - 11:35 amGLA-SEA

13h 35m1 stop

5:40 pm - 8:10 amSEA-GLA

30h 30m1 stop

$822KLM

Find Deal

Sat, Aug 30 - Tue, Sep 2

6:00 am - 2:45 pmGLA-SEA

16h 45m2 stops

5:40 pm - 11:10 pmSEA-GLA

21h 30m1 stop

$848KLM

Find Deal

Sat, Aug 30 - Tue, Sep 2

Icelandair flights from Glasgow to Seattle

Our best Icelandair deals on Glasgow to Seattle flight tickets

Icelandair

Sep 29

GLA2:20 pmGlasgow Intl

14h 20m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Oct 6

SEA7:00 pmSeattle/Tacoma Intl

10h 25m

1 stop

GLA1:25 pmGlasgow Intl

$658

Find similar

Icelandair

Aug 27

GLA2:20 pmGlasgow Intl

11h 30m

1 stop

SEA5:50 pmSeattle/Tacoma Intl

Sep 8

SEA7:00 pmSeattle/Tacoma Intl

10h 25m

1 stop

GLA1:25 pmGlasgow Intl

$673

Find similar

Icelandair

Oct 27

GLA1:20 pmGlasgow Intl

11h 40m

1 stop

SEA6:00 pmSeattle/Tacoma Intl

Nov 1

SEA3:35 pmSeattle/Tacoma Intl

11h 20m

1 stop

GLA9:55 amGlasgow Intl

$799

Find similar

Aer Lingus flights from Glasgow to Seattle

Our best Aer Lingus deals on Glasgow to Seattle flight tickets

Aer Lingus

Sep 29

GLA1:55 pmGlasgow Intl

29h 15m

2 stops

SEA11:10 amSeattle/Tacoma Intl

Oct 5

SEA12:34 amSeattle/Tacoma Intl

26h 56m

2 stops

GLA11:30 amGlasgow Intl

$947

Find similar

Aer Lingus

Sep 29

GLA12:00 pmGlasgow Intl

13h 50m

1 stop

SEA5:50 pmSeattle/Tacoma Intl

Oct 5

SEA12:34 amSeattle/Tacoma Intl

26h 56m

2 stops

GLA11:30 amGlasgow Intl

$1,046

Find similar

Aer Lingus

Dec 6

GLA8:20 amGlasgow Intl

16h 35m

2 stops

SEA4:55 pmSeattle/Tacoma Intl

Dec 28

SEA1:22 amSeattle/Tacoma Intl

22h 28m

2 stops

GLA7:50 amGlasgow Intl

$1,091

Find similar

Fly from

Fly to

Route

Depart

Return

Price

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 9/29

2:20 pm-8:40 pm

1 stop14h 20m

Seattle/Tacoma Intl

Mon 10/6

7:00 pm-1:25 pm

1 stop10h 25m

$658

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 8/27

2:20 pm-5:50 pm

1 stop11h 30m

Seattle/Tacoma Intl

Mon 9/8

7:00 pm-1:25 pm

1 stop10h 25m

$673

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 12/9

11:40 am-4:55 pm

1 stop13h 15m

Seattle/Tacoma Intl

Wed 12/24

6:50 pm-6:15 pm

1 stop15h 25m

$721

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 12/9

6:05 am-11:50 am

1 stop13h 45m

Seattle/Tacoma Intl

Wed 12/24

11:35 am-12:45 pm

2 stops17h 10m

$752

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 9/29

6:00 am-7:00 pm

2 stops21h 00m

Seattle/Tacoma Intl

Mon 10/6

2:10 pm-11:10 pm

1 stop25h 00m

$758

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 1/1

8:40 am-4:55 pm

1 stop16h 15m

Seattle/Tacoma Intl

Thu 1/22

6:50 pm-4:40 pm

1 stop13h 50m

$761

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 1/1

5:55 am-4:55 pm

1 stop19h 00m

Seattle/Tacoma Intl

Thu 1/22

6:50 pm-4:40 pm

1 stop13h 50m

$762

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 9/29

6:00 am-7:00 pm

2 stops21h 00m

Seattle/Tacoma Intl

Mon 10/6

9:46 am-1:00 pm

2 stops19h 14m

$763

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 8/30

6:00 am-11:35 am

1 stop13h 35m

Seattle/Tacoma Intl

Tue 9/2

5:40 pm-8:10 am

1 stop30h 30m

$822

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 8/30

6:00 am-2:45 pm

2 stops16h 45m

Seattle/Tacoma Intl

Tue 9/2

5:40 pm-11:10 pm

1 stop21h 30m

$848

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 cheapest month to fly to Seattle?

In general, February 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 $717. If you don’t want to visit Seattle in February, then you should wait until September to fly from Glasgow, when ticket prices are also cheap, with an average price of $729.

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 $838 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 $703 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

Best Price Found	$467
Fastest flight time	11h 30m
Direct flights	None
Airports in Seattle	1 airport

The best one-way flight to Seattle from Glasgow in the past 72 hours is $467. The best round-trip flight deal from Glasgow to Seattle found on momondo in the last 72 hours is $658.

The fastest flight from Glasgow to Seattle takes 11h 30m

There are no direct flights from Glasgow to Seattle. Popular non-direct route for this connection is Glasgow Intl Airport - Seattle/Tacoma Intl Airport.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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. 11h 30m 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 August 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 6.6 7,271 reviews		Search British Airways flights

Leavenworth

Tacoma

SeaTac

Ocean Shores

Olympia

Renton

Kent

Lynnwood

Federal Way

Puyallup

Marysville

Tukwila

Kirkland

Lakewood

Centralia

Shoreline

Cle Elum

Fife

Westport

Redmond

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.