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GLA - SEA

Find cheap flights from Glasgow to Seattle from £273

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 18/9. 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
Sat 1/6
Sat 8/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Seattle.
In the last 7 days, travellers have searched 43,740,974 times on KAYAK, and here's why:

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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
09:15 - 16:40GLA-SEA
15h 25m1 stop
18:10 - 23:10SEA-GLA
21h 00m1 stop
£555KLM
Find Deal
Wed, 15 May - Tue, 21 May
06:10 - 16:40GLA-SEA
18h 30m1 stop
13:30 - 13:00SEA-GLA
15h 30m1 stop
£557KLM
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Wed, 15 May - Tue, 21 May
07:05 - 11:35GLA-SEA
12h 30m1 stop
01:15 - 09:40SEA-GLA
24h 25m2 stops
£582American Airlines
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Wed, 15 May - Mon, 20 May
07:05 - 11:35GLA-SEA
12h 30m1 stop
01:15 - 09:40SEA-GLA
24h 25m2 stops
£583American Airlines
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Wed, 15 May - Mon, 20 May
14:20 - 11:20GLA-SEA
29h 00m1 stop
18:55 - 13:25SEA-GLA
10h 30m1 stop
£596Icelandair
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Sat, 7 Sep - Sat, 28 Sep
14:20 - 17:40GLA-SEA
11h 20m1 stop
23:00 - 13:25SEA-GLA
30h 25m1 stop
£665Icelandair
Find Deal
Wed, 5 Jun - Wed, 10 Jul
06:10 - 14:27GLA-SEA
16h 17m2 stops
13:10 - 23:05SEA-GLA
25h 55m2 stops
£733Lufthansa
Find Deal
Wed, 5 Jun - Mon, 8 Jul
16:10 - 11:30GLA-SEA
27h 20m1 stop
22:52 - 08:35SEA-GLA
25h 43m2 stops
£756British Airways
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Sat, 15 Jun - Mon, 24 Jun
06:10 - 14:27GLA-SEA
16h 17m2 stops
13:10 - 23:05SEA-GLA
25h 55m2 stops
£763Lufthansa
Find Deal
Fri, 7 Jun - Thu, 11 Jul
11:30 - 11:30GLA-SEA
32h 00m1 stop
13:30 - 23:25SEA-GLA
25h 55m1 stop
£780British Airways
Find Deal
Sat, 15 Jun - Mon, 24 Jun

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.
If your flying dates are flexible, you should consider flying to Seattle on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Glasgow to Seattle. For your return ticket, we recommend flying on a Monday and avoiding Fridays for the best deals.

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 £520 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is £745 and £743 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.
In the last 3 days, Icelandair offered the best one-way deal for that route, at £399. KAYAK users also found Glasgow to Seattle return flights on KLM from £555 and on Delta from £560.

Good to know - Cheap tickets from Glasgow to Seattle

Low season

January

High season

August

Cheapest flight

£273
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (23% more expensive on average)
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 return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 £341 for a one-way ticket and £694 for a return.

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

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

    The two airlines most popular with KAYAK users for flights from Glasgow to Seattle are KLM and American Airlines. With an average price for the route of £605 and an overall rating of 7.8, KLM is the most popular choice. American Airlines is also a great choice for the route, with an average price of £694 and an overall rating of 7.3.

  • 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 travellers 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 return ticket. You could then fly to Seattle with an airline and back to Glasgow with another airline.

  • 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 5 airlines serving 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.
7.7
FinnairOverall score based on 1376 reviews
7.0Entertainment
7.8Boarding
7.5Comfort
6.9Food
8.2Crew
Airline reviews

All good- I love BA and the professionalism of the crew and pilots.

8.0 ExcellentAnonymous, Apr 2024JFK - LHR
Read more about Finnair reviews

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

I booked the flight with Finnair, which made the arrangements for downloading a boarding pass unnecessarily complicated. I wouldn't do that again. Instead I'd book direct with AA.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

Helpful steward. Allowed me to move to some empty seats and I was able to get some sleep. He also had milk for my tea. Americans don’t realise that cream or half and half ruin tea.

Security was a mess at the Helsinki Airport. But I was delighted by the connecting flight waiting for us for JFK.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

They should. Heck planes more often not when they are suppose to be leaving causing delays

Thankfully not a full flight so although my headphone jack wasn’t working 100% on my window seat, I was able to move to the aisle seat. Food was fine, nothing great but tasty enough. Crew were friendly and made enough rounds. Always have a decent experience with Aer Lingus

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Great hospitality and service! Seats are better cushioned then some

Great hospitality and service! Seats could always be cushioned better.

Customs is always a challenge. The customs officials were real humans, which was nice-not robots programmed on angry 😊. If you’re in a hurry to get through you’ll be stressed out. Allow yourselves plenty of time and it will be a stress free experience.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Food and staff were excellent. Seats on Saga (business class) are comparable to domestic first class of US Airlines, regarding space and recline. Entertainment options had little international component.

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

There is no food without paying $. Only soft drinks are included in your fare.

Some drinks and basic snack will be good. Water should be served at least once an hour. Blankets for folks who might be cold.

Pros: "Flight was relatively empty. Professional crew, comfortable seats"
Cons: "I think they skipped me with food service. Checking up on passengers who may have been sleeping would be nice. Headphones need to be purchased. Limited entertainment options."
Cons: "Communication about international COVID requirements before the day of departure."
Pros: "My seat cushion was out of alignment so not great. But I like the two side seat configuration."
Cons: "Boarding is a zoo. Board by row. It’s faster."
Pros: "Icelandair crew were very hospitable and accompodating"
Cons: "I have never sat in such a narrow seat. Literally could not put my hand down the side to pull out my seat belt. Two days later I still have sores from where the side of the seats hit my hips. Did not even provide complimentary peanuts."
Cons: "Took far too long for drinks service into the flight. Almost 2 hours in before drinks came around to me"

It was freezing in the airplane. Everyone was wearing everything they had with them. The crew acknowledged it was cold, but did nothing about it

The flight attendants were superb and the service was outstanding. Some passengers with small children were very rude and inconsiderate, kids were constantly crying and some were running around the aisle unsupervised.

Terrible. There was a rattling noise the whole flight. The internet didn't work after I paid. Boarding is very disorganized.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

I was ver pleased with the service all the way through

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

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.

Book cheap flights from Glasgow to Seattle

Cheapest flights to Seattle from Glasgow found in 2024

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.
18/9Wed
2 stops
29h 21mGLA-SEA
£273
23/5Thu
3 stops
34h 10mGLA-SEA
£288
2/9Mon
1 stopIcelandair
29h 00mGLA-SEA
£399
18/9Wed
1 stopIcelandair
14h 15mGLA-SEA
£405
23/5Thu
2 stops
31h 40mGLA-SEA
£410
18/9Wed
3 stops
34h 23mGLA-SEA
£442
2/9Mon
1 stopAer Lingus
28h 51mGLA-SEA
£583
2/9Mon
1 stopAer Lingus
28h 51mGLA-SEA
£583
12/8Mon
1 stopIcelandair
14h 15mGLA-SEA
£663
12/8Mon
1 stopAer Lingus
28h 51mGLA-SEA
£682

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Glasgow - Seattle Flights

Departure:

Glasgow (GLA)United Kingdom

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Glasgow

Cabin classes: