Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

GLA - SEA

Find cheap flights from Glasgow to Seattle from $429

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 5/11. 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 4/27
Sat 5/4

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 46,342,885 times on KAYAK, and here is why:

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

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

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Glasgow to Seattle

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
4:50 pm - 10:15 amGLA-SEA
25h 25m1 stop
1:30 pm - 11:10 pmSEA-GLA
25h 40m1 stop
Mon, Apr 22 - Mon, May 20
8:50 pm - 10:15 amGLA-SEA
21h 25m1 stop
1:30 pm - 4:05 pmSEA-GLA
18h 35m1 stop
Mon, Apr 22 - Mon, May 20
6:10 am - 3:12 pmGLA-SEA
17h 02m2 stops
6:10 pm - 4:05 pmSEA-GLA
13h 55m1 stop
Mon, Apr 22 - Mon, May 20
6:10 am - 6:42 pmGLA-SEA
20h 32m2 stops
12:35 pm - 4:05 pmSEA-GLA
19h 30m2 stops
$736Delta
Find Deal
Mon, Apr 22 - Mon, May 20
6:10 am - 8:46 pmGLA-SEA
22h 36m2 stops
12:35 pm - 4:05 pmSEA-GLA
19h 30m2 stops
$737Delta
Find Deal
Mon, Apr 22 - Mon, May 20
10:35 am - 5:45 pmGLA-SEA
15h 10m1 stop
10:54 pm - 11:55 amSEA-GLA
29h 01m2 stops
$746American Airlines
Find Deal
Fri, Apr 12 - Sun, Apr 21
8:20 am - 9:26 pmGLA-SEA
21h 06m2 stops
1:32 pm - 1:35 pmSEA-GLA
16h 03m2 stops
$751American Airlines
Find Deal
Thu, Apr 18 - Mon, Apr 22
8:20 am - 9:26 pmGLA-SEA
21h 06m2 stops
10:54 pm - 1:50 pmSEA-GLA
30h 56m2 stops
$786Finnair
Find Deal
Fri, Apr 19 - Fri, Apr 26
7:05 am - 11:35 amGLA-SEA
12h 30m1 stop
1:30 pm - 10:05 amSEA-GLA
12h 35m1 stop
$838British Airways
Find Deal
Mon, Apr 8 - Mon, May 6
7:05 am - 11:35 amGLA-SEA
12h 30m1 stop
1:40 pm - 9:50 amSEA-GLA
12h 10m1 stop
$875British Airways
Find Deal
Wed, Apr 10 - Sun, May 5

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 Wednesdays 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 $736 on Delta, followed by American Airlines ($746). One-way flight deals have also been found from as low as $705 on Aer Lingus and from $2,067 on Finnair.

How long does a flight from Glasgow to Seattle take?

This flight route requires at least one stop and takes a minimum of 11h 20m.

Good to know

Low season

January

High season

August

Cheapest flight

$429
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 $429 for a one-way ticket and $705 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?

    oneworld, SkyTeam, and Star Alliance 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 $891 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

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 KAYAK reviews.
7.3
American AirlinesOverall score based on 15181 reviews
80crew
76boarding
72comfort
71entertainment
66food
73overall
Airline reviews

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.

Read more about American Airlines

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

Food was terrible. Flight attendants OK. Only saw them at food service. Other than that they paid no attention to the passengers at all.

The plane was subbed for another last minute, the gate was changed last minute. Could live with that but we boarded and there was a delay which totaled an hour in the end. There was a technical issue which meant wheels needed to remain out for ten mins after take off. My USB phone charger was broken as was the headphone jack which meant I could t enjoy the IFE and could use my phone after a few hours. Even the map function on the plane failed to work after a few hours.

I sat in the last row of seats. On an 8 hour flight they allowed folks to stand and talk and drink in the back area near the toilets the whole time. They were at times loud and in the way. It was a little annoying. The crew on this trip were pretty mediocre and the plane was littered with trash when we disembarked.

Boarding process needs to be improved. Business class passengers were told to stand in the economy line and vice versa.

I travelled on biz class and f there is no water in the toilette to wash my hands I would expect to have this indicated somehow and not just finding out when I'm there expecting to be able to wash my hands and teeth. Also this is in general that it is always so rushy at the end of these kind of long flights. It is like we are sitting there for 9 hours and the last 1.5 hours just feels like I have time for nothing. Because food comes and at the same time we are close to destination everyone tries to pack their stuff and go to toilette and eat and everything :))) not that like I would know a good solution here I just wanted to raise this :)

Emergency row seat less comfortable than promoted. Restricted by emergency life raft storage.

My selected seat ending up being very uncomfortable both major flights. SFO to London and back. Seat arms did not go up so it was not like suggest by BA staff. On return flight my seat had a life raft barrier in front off me and large man beside me.

Better communication to those connecting flights and have a customer care desk at the airports

The entertainment system in our row was not working. That makes for a VERY long flight!!

Pre flight food options were not working and made the flight not enjoyable. Post experiences of British airways have been positive, but this is enough to stop me using British airways again

Flight cancelled and i was rebooked on delta. Delta business class is not the same as British

Boarding could be smoother. But the flight crew was excellence. Very professional, friendly and helpful.

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.
5/11Sat
3 stops
57h 35mGLA-SEA
$429
5/11Sat
2 stops
39h 00mGLA-SEA
$651
5/11Sat
1 stopAer Lingus
31h 56mGLA-SEA
$705
7/21Sun
2 stops
23h 30mGLA-SEA
$748
6/22Sat
1 stopAer Lingus
31h 56mGLA-SEA
$1,013
7/23Tue
1 stopAer Lingus
16h 26mGLA-SEA
$1,063
7/22Mon
1 stopAer Lingus
28h 51mGLA-SEA
$1,077
7/21Sun
1 stopAer Lingus
16h 26mGLA-SEA
$1,109
7/23Tue
2 stopsFinnair
19h 04mGLA-SEA
$2,067
7/21Sun
2 stopsBritish Airways
19h 28mGLA-SEA
$2,120

Search by stops

Search by airline

Search by price

Glasgow - Seattle Flights

Departure:

Glasgow (GLA)United Kingdom

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Glasgow

Cabin classes: