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GLA - SEA

Find cheap flights from Glasgow to Seattle from $408

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Glasgow to Seattle departing on 5/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 5/28
Tue 6/4

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 43,219,010 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Glasgow to Seattle (GLA-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Glasgow to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:10 am - 4:40 pmGLA-SEA
18h 30m1 stop
6:10 pm - 4:05 pmSEA-GLA
13h 55m1 stop
$694KLM
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Wed, May 15 - Tue, May 21
9:15 am - 4:40 pmGLA-SEA
15h 25m1 stop
1:30 pm - 1:00 pmSEA-GLA
15h 30m1 stop
$695KLM
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Wed, May 15 - Tue, May 21
6:10 am - 3:19 pmGLA-SEA
17h 09m2 stops
9:32 am - 1:00 pmSEA-GLA
19h 28m2 stops
$700Delta
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Wed, May 15 - Tue, May 21
7:05 am - 11:35 amGLA-SEA
12h 30m1 stop
1:15 am - 9:40 amSEA-GLA
24h 25m2 stops
$728American Airlines
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Wed, May 15 - Mon, May 20
8:20 am - 8:50 pmGLA-SEA
20h 30m2 stops
1:25 pm - 7:40 pmSEA-GLA
22h 15m2 stops
$750Finnair
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Wed, May 29 - Thu, Jun 20
1:30 pm - 6:06 pmGLA-SEA
36h 36m2 stops
5:10 am - 11:55 amSEA-GLA
22h 45m2 stops
$857American Airlines
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Sat, Jun 15 - Mon, Jun 24
7:40 pm - 11:30 amGLA-SEA
23h 50m1 stop
10:52 pm - 8:35 amSEA-GLA
25h 43m2 stops
$928British Airways
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Sat, Jun 15 - Mon, Jun 24
11:30 am - 11:30 amGLA-SEA
32h 00m1 stop
1:30 pm - 11:55 amSEA-GLA
14h 25m1 stop
$949British Airways
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Sat, Jun 15 - Mon, Jun 24
7:05 am - 11:35 amGLA-SEA
12h 30m1 stop
5:40 pm - 7:40 pmSEA-GLA
18h 00m2 stops
$977Finnair
Find Deal
Wed, May 29 - Thu, Jun 20
7:05 am - 11:35 amGLA-SEA
12h 30m1 stop
1:30 pm - 11:25 pmSEA-GLA
25h 55m1 stop
$989British Airways
Find Deal
Wed, May 29 - Thu, Jun 20

Flights from Glasgow to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Glasgow to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Glasgow to Seattle?

The average price of all flights from Glasgow Intl Airport to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from Glasgow to Seattle, you should consider leaving on a Tuesday and avoid Fridays if you are looking for the best rates. For your return to Glasgow, you’ll find the best rates on Wednesdays and the most expensive ones on Fridays.

What is the cheapest month to fly from Glasgow Intl Airport to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Glasgow Intl Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Glasgow Intl Airport to Seattle is November, where tickets cost $650 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $931 and $928 respectively.

How far in advance should I book a flight from Glasgow Intl Airport to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Glasgow Intl Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Glasgow Intl Airport to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 75 days before departure.

Which airlines provide the cheapest flights from Glasgow to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Glasgow to Seattle found by KAYAK users in the last 72 hours was for $694 on KLM, followed by Delta ($700). One-way flight deals have also been found from as low as $657 on Icelandair and from $726 on Aer Lingus.

Good to know

Low season

January

High season

August

Cheapest flight

$408
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Glasgow to Seattle

When to book flights from Glasgow to Seattle

Are your dates flexible? Find out the best times to travel from Glasgow to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Glasgow to Seattle flights

  • What is the cheapest flight from Glasgow Intl Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Glasgow Intl Airport to Seattle was $408 for a one-way ticket and $694 for a round-trip.

  • Do I need a passport to fly between Glasgow and Seattle?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Glasgow and on arrival in Seattle.

  • Which airports will I be using when flying from Glasgow to Seattle?

    Glasgow airport is called Glasgow Intl and the only airport in Seattle is Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Glasgow to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Glasgow to Seattle?

    SkyTeam, and oneworld are the airline alliances operating flights between Glasgow and Seattle, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Glasgow to Seattle, American Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from Glasgow to Seattle are American Airlines and British Airways. With an average price for the route of $742 and an overall rating of 7.3, American Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $967 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Glasgow to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Glasgow to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Glasgow to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Glasgow is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Glasgow to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Glasgow with another airline. Booking your flights between Glasgow and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Glasgow to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Glasgow up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Glasgow to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Glasgow to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Glasgow to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
American AirlinesOverall score based on 14844 reviews
7.1entertainment
7.6boarding
8.0crew
7.2comfort
6.6food
Airline reviews

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

8.0 ExcellentAnonymous, Apr 2024CLT - SEA
Read more about American Airlines reviews

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

Somehow I got “offloaded” even though I had my boarding pass and was in transit Food is horrible Staff were nice and cheerful No headphones were provided on 11 hours flight

The staff were very helpful with lots of refreshments on offer. The toilets were clean. The seats were comfortable and entertainment was good. No complaints, it was excellent.

The main flight was OK but the second flight was chaotic with delays

amazing! they were so kind and allowed us to sit on empty seats so we could stretch our legs and sleep good. Food is amazing as well plus dessert in the middle of the flight!

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

All the British airways staff were very helpful and friendly. Every thing was very smooth running from checking in boarding and arriving 40 minutes early. Which is a brilliant start to your holiday.

Overall it was good but not great. The aircraft was an old and seats didn’t recline in business class unless you kept playing around with it.

No nice at all, delayed and I lost the connection over xmas

Terrible flight seats where really uncomfortable I had body aches for 2 days and flight was delays almost two hours

The crew was very attentive and kept busy serving a variety of treats!

Offered vegetable curry when it was actually tofu which I don’t care for.

British Airways planes are too old verses other airlines, followed by luggage not turning up, with a customer service team unhelpful in trying to locate or send to hotel was appalling. 3 days without suitcases on a leg that flies 2 x daily.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Overall good, the gluten free food is very hit/miss though and you must tell them you have an allergy days in advance.

All was good. The headphones they supply are of poor quality. The food is good but too much dairy.

Seating space was crowded and I am a very small woman.

Book cheap flights from Glasgow to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Glasgow to Seattle found on KAYAK in the last 72 hours.
5/25Sat
3 stops
49h 15mGLA-SEA
$408
5/25Sat
2 stops
37h 19mGLA-SEA
$515
10/4Fri
2 stops
41h 13mGLA-SEA
$531
10/4Fri
1 stopIcelandair
11h 35mGLA-SEA
$657
5/3Fri
1 stopIcelandair
12h 05mGLA-SEA
$663
5/3Fri
2 stops
25h 03mGLA-SEA
$692
9/2Mon
1 stopAer Lingus
31h 56mGLA-SEA
$726
9/2Mon
2 stopsAer Lingus
22h 10mGLA-SEA
$934
6/22Sat
1 stopAer Lingus
31h 56mGLA-SEA
$980
9/29Sun
1 stopIcelandair
14h 15mGLA-SEA
$1,930

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Glasgow - Seattle Flights

Departure:

Glasgow (GLA)United Kingdom

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Glasgow

Cabin classes: