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Cheap flights from Glasgow Intl Airport to Seattle from $447

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Glasgow Intl Airport to Seattle departing on 6/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Glasgow Intl Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:00 am - 5:10 pm
GLA
-
SEA
17h 10m
1 stop
Multiple Airlines Logo
7:10 pm - 9:20 pm
SEA
-
GLA
18h 10m
1 stop
$693Multiple Airlines
Sun, Jun 7 - Sun, Jun 14
Icelandair Logo
2:20 pm - 5:55 pm
GLA
-
SEA
11h 35m
1 stop
Icelandair Logo
7:00 pm - 1:25 pm
SEA
-
GLA
10h 25m
1 stop
$790Icelandair
Thu, Jun 4 - Mon, Jun 8
Icelandair Logo
2:20 pm - 5:55 pm
GLA
-
SEA
11h 35m
1 stop
Icelandair Logo
7:00 pm - 1:25 pm
SEA
-
GLA
10h 25m
1 stop
$793Icelandair
Thu, Jun 4 - Mon, Jun 8
Multiple Airlines Logo
8:35 am - 9:00 pm
GLA
-
SEA
20h 25m
2 stops
Multiple Airlines Logo
7:00 am - 6:50 am
SEA
-
GLA
15h 50m
2 stops
$815Multiple Airlines
Tue, Jun 16 - Tue, Jun 30
Icelandair Logo
2:20 pm - 8:40 pm
GLA
-
SEA
14h 20m
1 stop
Icelandair Logo
3:35 pm - 9:55 am
SEA
-
GLA
11h 20m
1 stop
$831Icelandair
Tue, Oct 6 - Tue, Oct 27
Multiple Airlines Logo
9:25 am - 5:10 pm
GLA
-
SEA
15h 45m
1 stop
Multiple Airlines Logo
7:10 pm - 8:15 pm
SEA
-
GLA
17h 05m
1 stop
$862Multiple Airlines
Mon, Jun 8 - Mon, Jun 15
Multiple Airlines Logo
7:00 am - 8:40 pm
GLA
-
SEA
21h 40m
2 stops
Multiple Airlines Logo
7:00 pm - 11:45 pm
SEA
-
GLA
20h 45m
2 stops
$867Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
9:25 am - 5:10 pm
GLA
-
SEA
15h 45m
1 stop
Multiple Airlines Logo
7:10 pm - 9:20 pm
SEA
-
GLA
18h 10m
1 stop
$868Multiple Airlines
Mon, Jun 8 - Sun, Jun 14
Multiple Airlines Logo
8:20 am - 5:10 pm
GLA
-
SEA
16h 50m
1 stop
Multiple Airlines Logo
7:10 pm - 10:10 pm
SEA
-
GLA
19h 00m
1 stop
$871Multiple Airlines
Tue, Jun 16 - Tue, Jun 30
Multiple Airlines Logo
8:20 am - 9:00 pm
GLA
-
SEA
20h 40m
3 stops
Multiple Airlines Logo
10:30 am - 10:10 pm
SEA
-
GLA
27h 40m
3 stops
$872Multiple Airlines
Tue, Jun 16 - Tue, Jun 30

Icelandair flights from Glasgow Intl Airport to Seattle

Our best Icelandair deals on Glasgow Intl Airport to Seattle flight tickets
Icelandair
Jun 4
GLA2:20 pmGlasgow Intl
11h 35m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
Jun 8
SEA7:00 pmSeattle/Tacoma Intl
10h 25m
1 stop
GLA1:25 pmGlasgow Intl
$790
Icelandair
Jun 4
GLA2:20 pmGlasgow Intl
11h 35m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
Jun 8
SEA7:00 pmSeattle/Tacoma Intl
10h 25m
1 stop
GLA1:25 pmGlasgow Intl
$793
Icelandair
Oct 6
GLA2:20 pmGlasgow Intl
14h 20m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Oct 27
SEA3:35 pmSeattle/Tacoma Intl
11h 20m
1 stop
GLA9:55 amGlasgow Intl
$831

Finnair flights from Glasgow Intl Airport to Seattle

Our best Finnair deals on Glasgow Intl Airport to Seattle flight tickets
Finnair
Oct 6
GLA2:35 pmGlasgow Intl
29h 00m
1 stop
SEA11:35 amSeattle/Tacoma Intl
Oct 27
SEA7:50 pmSeattle/Tacoma Intl
14h 05m
1 stop
GLA4:55 pmGlasgow Intl
$994
Finnair
Oct 6
GLA5:10 pmGlasgow Intl
26h 25m
1 stop
SEA11:35 amSeattle/Tacoma Intl
Oct 27
SEA7:50 pmSeattle/Tacoma Intl
14h 05m
1 stop
GLA4:55 pmGlasgow Intl
$997
Finnair
Oct 6
GLA8:35 amGlasgow Intl
18h 55m
2 stops
SEA7:30 pmSeattle/Tacoma Intl
Oct 27
SEA2:25 pmSeattle/Tacoma Intl
13h 20m
1 stop
GLA10:45 amGlasgow Intl
$1,002

momondo Fare Finder

 
Customize your flight search to find flights from Glasgow Intl Airport to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 13, 2026.
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 round-trip

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 6/7

8:00 am-5:10 pm

1 stop17h 10m

Seattle/Tacoma Intl

Sun 6/14

7:10 pm-9:20 pm

1 stop18h 10m

$693
Quickest round-trip

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 6/4

2:20 pm-5:55 pm

1 stop11h 35m

Seattle/Tacoma Intl

Mon 6/8

7:00 pm-1:25 pm

1 stop10h 25m

$790

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 6/4

2:20 pm-5:55 pm

1 stop11h 35m

Seattle/Tacoma Intl

Mon 6/8

7:00 pm-1:25 pm

1 stop10h 25m

$793

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 6/16

8:35 am-9:00 pm

2 stops20h 25m

Seattle/Tacoma Intl

Tue 6/30

7:00 am-6:50 am

2 stops15h 50m

$815

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 10/6

2:20 pm-8:40 pm

1 stop14h 20m

Seattle/Tacoma Intl

Tue 10/27

3:35 pm-9:55 am

1 stop11h 20m

$831

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 6/8

9:25 am-5:10 pm

1 stop15h 45m

Seattle/Tacoma Intl

Mon 6/15

7:10 pm-8:15 pm

1 stop17h 05m

$862

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 9/24

7:00 am-8:40 pm

2 stops21h 40m

Seattle/Tacoma Intl

Thu 10/1

7:00 pm-11:45 pm

2 stops20h 45m

$867

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 6/8

9:25 am-5:10 pm

1 stop15h 45m

Seattle/Tacoma Intl

Sun 6/14

7:10 pm-9:20 pm

1 stop18h 10m

$868

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 6/16

8:20 am-5:10 pm

1 stop16h 50m

Seattle/Tacoma Intl

Tue 6/30

7:10 pm-10:10 pm

1 stop19h 00m

$871

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 6/16

8:20 am-9:00 pm

3 stops20h 40m

Seattle/Tacoma Intl

Tue 6/30

10:30 am-10:10 pm

3 stops27h 40m

$872

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Glasgow Intl Airport 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

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

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Glasgow Intl Airport 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 November to fly from Glasgow Intl Airport, when ticket prices are also cheap, with an average price of $709.

Can stopping save me money on Glasgow Intl Airport to Seattle flights?

You could potentially save up to 46% on your flight if you consider stops on a Glasgow Intl Airport to Seattle flight.

How have Glasgow Intl Airport to Seattle flight prices changed over time?

When to book flights from Glasgow Intl Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Glasgow Intl Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Glasgow Intl Airport to Seattle (GLA to SEA) flight deals and tips

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

Fastest flight time

11h 35m

Direct flights

None
The fastest flight from Glasgow Intl Airport to Seattle takes 11h 35m
There are no direct flights from Glasgow Intl Airport to Seattle. There are no popular flight routes from Glasgow Intl Airport to Seattle.
Search flight deals

Frequently asked questions about flying from Glasgow Intl Airport to Seattle

  • How far is Glasgow Intl to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 4436.4 mi away from Glasgow Intl. In terms of flight time, this usually takes a little over 11h 35m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Glasgow Intl Airport to Seattle/Tacoma Intl Airport.

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

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Glasgow Intl Airport to Seattle?

Best airlines flying from Glasgow Intl Airport to Seattle

Compare and see reviews for airlines that fly from Glasgow Intl Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $814Free CancellationRating
6.7
7,975 reviews
Search British Airways flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Tukwila
Puyallup
Marysville
Lakewood
Cle Elum
Federal Way
Centralia
Fife
Westport
Shoreline
Tumwater

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Glasgow.

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

momondo does allow users to show only those flights to Seattle from Glasgow which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Glasgow to Seattle.

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

Yes. momondo can track prices for Glasgow to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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