SEA - GLA

£209 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 25/2. 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

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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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

Tue, 7 Oct - Wed, 22 Oct
Icelandair Logo
19:00 - 13:25SEA-GLA
10h 25m1 stop
Icelandair Logo
14:20 - 17:50GLA-SEA
11h 30m1 stop
£363Icelandair
Find Deal
Sat, 11 Oct - Sat, 18 Oct
Icelandair Logo
19:00 - 13:25SEA-GLA
10h 25m1 stop
Icelandair Logo
14:20 - 17:50GLA-SEA
11h 30m1 stop
£390Icelandair
Find Deal
Sun, 1 Mar - Thu, 5 Mar
Icelandair Logo
14:35 - 09:55SEA-GLA
11h 20m1 stop
Icelandair Logo
12:35 - 17:00GLA-SEA
12h 25m1 stop
£397Icelandair
Find Deal
Wed, 15 Oct - Mon, 20 Oct
British Airways Logo
20:20 - 18:40SEA-GLA
14h 20m1 stop
British Airways Logo
20:50 - 11:10GLA-SEA
22h 20m1 stop
£465British Airways
Find Deal
Tue, 7 Oct - Wed, 22 Oct
British Airways Logo
13:30 - 12:10SEA-GLA
14h 40m1 stop
British Airways Logo
05:50 - 11:35GLA-SEA
13h 45m1 stop
£466British Airways
Find Deal
Tue, 3 Feb - Thu, 12 Feb
American Airlines Logo
11:54 - 13:05SEA-GLA
17h 11m2 stops
American Airlines Logo
09:55 - 23:07GLA-SEA
21h 12m2 stops
£480American Airlines
Find Deal
Tue, 7 Oct - Wed, 22 Oct
Lufthansa Logo
14:20 - 12:20SEA-GLA
14h 00m1 stop
Lufthansa Logo
06:10 - 18:36GLA-SEA
20h 26m2 stops
£485Lufthansa
Find Deal
Tue, 7 Oct - Wed, 22 Oct
Lufthansa Logo
10:00 - 12:20SEA-GLA
18h 20m2 stops
Lufthansa Logo
06:10 - 14:16GLA-SEA
16h 06m2 stops
£486Lufthansa
Find Deal
Sun, 21 Sep - Sat, 4 Oct
KLM Logo
13:55 - 08:10SEA-GLA
34h 15m1 stop
KLM Logo
16:55 - 16:05GLA-SEA
31h 10m1 stop
£556KLM
Find Deal
Sun, 21 Sep - Sat, 4 Oct
KLM Logo
13:55 - 08:10SEA-GLA
34h 15m1 stop
KLM Logo
06:00 - 16:05GLA-SEA
18h 05m1 stop
£586KLM
Find Deal

Everything you should know

Top airlines
Icelandair
Cheapest • from £363 (return)
Icelandair
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 12% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 18% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£363
Overall average: £533
Icelandair
Tue 7/10Wed 22/10
SEA - GLA • 1 stop
Cheapest one-way flight
£209
Typical prices: £345-388
Multi-carrier
Wed 25/2
SEA - GLA • 2 stops
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Glasgow!
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’s the cheapest day of the week to fly from Seattle to Glasgow?

The average price of all round-trip flights from Seattle to Glasgow Intl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seattle to Glasgow, look for departures on Wednesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Glasgow, Tuesday is the cheapest day to fly and Saturday is the most expensive.

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 November, where tickets cost £511 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £849 and £797 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 3 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know - Cheap tickets from Seattle to Glasgow

Low seasonDecember
Cheapest flight£209
Best time to beat the crowds but there is an average 36% increase in price.
Most popular time to fly and prices are also 6% 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 £283 for a one-way ticket and £492 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.

  • Which airline alliances offer flights from Seattle to Glasgow?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Seattle and Glasgow, with oneworld being the most commonly used for this 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.
7.0
IcelandairOverall score based on 546 reviews
7.0Entertainment
7.1Boarding
6.9Comfort
8.0Crew
6.2Food
Airline reviews

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

4.0 OkayAnonymous, Sept 2025IAD - KEF
Read more Icelandair reviews

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

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

Information on your arrival and departure airports

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