SEA - GLA

£155 Find Cheap Flights from Seattle to Glasgow

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Glasgow departing on 6/4. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Glasgow Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Glasgow, 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 Seattle to Glasgow, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£375
Overall average: £561
Icelandair
Mon 20/4Mon 27/4
SEA - GLA • 1 stop
Cheapest one-way flight
£155
Typical prices: £353-£466
Icelandair
Mon 6/4
SEA - GLA • 1 stop
Top airlines
Icelandair
Cheapest • from £375 (return)
Icelandair
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 15% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Glasgow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Glasgow (SEA-GLA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Seattle to Glasgow 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 for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seattle to Glasgow

Mon, 20 Apr - Mon, 27 Apr
Icelandair Logo
19:00 - 13:25
SEA
-
GLA
10h 25m
1 stop
Icelandair Logo
14:20 - 17:55
GLA
-
SEA
11h 35m
1 stop
£375Icelandair
Mon, 27 Apr - Tue, 5 May
Icelandair Logo
19:00 - 13:25
SEA
-
GLA
10h 25m
1 stop
Icelandair Logo
14:20 - 17:55
GLA
-
SEA
11h 35m
1 stop
£380Icelandair
Mon, 20 Apr - Fri, 1 May
Icelandair Logo
19:00 - 13:25
SEA
-
GLA
10h 25m
1 stop
Icelandair Logo
14:30 - 20:40
GLA
-
SEA
14h 10m
1 stop
£381Icelandair
Thu, 23 Apr - Thu, 14 May
Icelandair Logo
19:00 - 13:35
SEA
-
GLA
10h 35m
1 stop
Icelandair Logo
14:20 - 20:40
GLA
-
SEA
14h 20m
1 stop
£381Icelandair
Mon, 20 Apr - Tue, 28 Apr
Icelandair Logo
19:00 - 13:25
SEA
-
GLA
10h 25m
1 stop
Icelandair Logo
14:20 - 17:55
GLA
-
SEA
11h 35m
1 stop
£383Icelandair
Sun, 26 Apr - Tue, 5 May
Icelandair Logo
15:40 - 13:25
SEA
-
GLA
13h 45m
1 stop
Icelandair Logo
14:20 - 20:40
GLA
-
SEA
14h 20m
1 stop
£384Icelandair
Tue, 5 May - Thu, 14 May
Icelandair Logo
19:00 - 13:25
SEA
-
GLA
10h 25m
1 stop
Icelandair Logo
14:20 - 17:55
GLA
-
SEA
11h 35m
1 stop
£386Icelandair
Tue, 5 May - Wed, 13 May
Icelandair Logo
19:00 - 13:25
SEA
-
GLA
10h 25m
1 stop
Icelandair Logo
14:20 - 17:55
GLA
-
SEA
11h 35m
1 stop
£390Icelandair
Mon, 20 Apr - Wed, 29 Apr
Icelandair Logo
15:40 - 13:25
SEA
-
GLA
13h 45m
1 stop
Icelandair Logo
14:20 - 17:55
GLA
-
SEA
11h 35m
1 stop
£392Icelandair
Mon, 13 Apr - Wed, 22 Apr
Icelandair Logo
15:40 - 13:25
SEA
-
GLA
13h 45m
1 stop
Icelandair Logo
14:20 - 20:40
GLA
-
SEA
14h 20m
1 stop
£400Icelandair
Booking Insights

KAYAK's insights & trends for Seattle to Glasgow flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Glasgow Intl Airport, 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 Seattle to Glasgow Intl Airport is February, where tickets cost £480 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £707 and £625 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Glasgow Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Glasgow Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Find deals

Good to know - Cheap tickets from Seattle to Glasgow

Low seasonJanuary
Cheapest flight£155
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.
Flight from Seattle to Glasgow

When to book flights from Seattle to Glasgow

Are your dates flexible? Find out the best times to travel from Seattle to Glasgow 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 Seattle to Glasgow flights

  • Does British Airways allow passengers to bring along pets on flights from Seattle to Glasgow?

    Yes, British Airways allows passengers to bring pets on flights from Seattle to Glasgow. However, there are certain restrictions and guidelines that need to be followed. Pets are typically transported in the aircraft's cargo hold rather than the cabin. It's recommended to contact British Airways directly for detailed information on their pet policies, including requirements, fees, and necessary documentation for transporting pets on this specific route.

  • How can I get to the city center after my flight from Seattle to Glasgow?

    Upon arriving at Glasgow Airport from Seattle, you have several options to reach the city center. The most convenient way is to take a taxi, which can be found at designated taxi ranks outside the terminal. Alternatively, you can use the airport shuttle bus service that operates regularly between the airport and the city center. Another option is to utilize public transportation, such as the train or bus, which have direct connections to Glasgow's city center.

  • Which special food does British Airways offer on flights from Seattle to Glasgow?

    British Airways offers a range of culinary delights on their flights from Seattle to Glasgow. Passengers can savor delectable dishes inspired by British and international cuisines. From tantalizing appetizers to mouth-watering main courses and delectable desserts, the airline ensures a memorable dining experience.

  • Does British Airways allow passengers to upgrade seats?

    Yes, British Airways allows passengers to upgrade seats on flights from Seattle to Glasgow. Upgrades are subject to availability and can be requested at the time of booking or during check-in. Passengers can choose to upgrade to a higher class, such as Premium Economy or Business Class, for a more comfortable and enhanced travel experience. Additional charges may apply for seat upgrades.

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

    In the last 3 days, the lowest price for a flight from Seattle to Glasgow Intl Airport was £155 for a one-way ticket and £375 for a return.

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

    On your way to Glasgow, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing at Glasgow Intl.

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

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

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

    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 Seattle to Glasgow.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Glasgow from Seattle 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 Seattle to Glasgow?

    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 Glasgow with an airline and back to Seattle with another airline.

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

    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 Glasgow from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Glasgow Intl Airport

  • U.S. citizens flying from Seattle (SEA) to Glasgow (GLA) require a valid passport for entry into the United Kingdom. A visa is not required for stays up to 6 months as a tourist. However, please note that visa requirements can change over time, so it is essential to consult the official websites of the U.S. Department of State and the United Kingdom's government when traveling.
  • Delta Air Lines offers a range of kid-friendly amenities on flights from Seattle to Glasgow. These include entertainment options like movies, TV shows, and games suitable for children, as well as kid-friendly meals and snacks. Additionally, Delta provides complimentary pillows, blankets, and headphones for young travelers. The airline also offers assistance with strollers and car seats, ensuring a comfortable and convenient journey for families traveling with children.
  • Moreover, Delta Air Lines provides assistance to passengers with disabilities on flights from Seattle to Glasgow. They offer wheelchair services for individuals who require mobility support, ensuring they can navigate the airport and board the aircraft comfortably.
  • Delta Air Lines promotes sustainable travel on flights from Seattle to Glasgow by implementing various initiatives. They prioritize fuel efficiency by utilizing newer, more eco-friendly aircraft with reduced carbon emissions. They also invest in sustainable aviation fuel (SAF) to reduce their environmental impact.
  • On British Airways flights from Seattle to Glasgow, you can enjoy a range of in-flight entertainment options. Passengers have access to a wide selection of movies, TV shows, music albums, and audio books. The entertainment system includes both recent releases and classic favorites, ensuring there's something for everyone's taste. Additionally, British Airways offers interactive games and a variety of magazines and newspapers to keep you entertained throughout your journey.

Reviews of the top airline flying from Seattle to Glasgow

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Glasgow. 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 Seattle to Glasgow? 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.
7.1
IcelandairOverall score based on 614 reviews
7.0Entertainment
7.2Boarding
7.0Comfort
6.2Food
8.1Crew
Airline reviews

Nice, quick flight. There were lots of empty seats so they told me I could sit next to the emergency exit where I would have more legroom.

10.0 ExcellentAnonymous, Feb 2026
KEF - GOH
Read more Icelandair reviews

Nice, quick flight. There were lots of empty seats so they told me I could sit next to the emergency exit where I would have more legroom.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Again, we paid $ 328.00 for specific seats are were assigned those seats.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

Everything you need to know for your flight from Seattle to Glasgow

Information on your arrival and departure airports

Seattle (SEA)
Glasgow Intl (GLA)