$426 Cheap Flights from Seattle (SEA) to Glasgow (GLA)

View $426 flight on Fri, Feb 27, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Glasgow International Airport (GLA)

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Cheap Flights from Seattle to Glasgow (SEA-GLA)

Prices were available within the past 7 days and start at $426 for one-way flights and $515 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, Feb 27 - Fri, Mar 6
SEA
Seattle
GLA
Glasgow
$515 Roundtrip, found 8 hours ago
$515
Roundtrip
found 8 hours ago
Select Icelandair flight, departing Fri, Feb 27 from Seattle to Glasgow, returning Fri, Mar 6, priced at $515 found 8 hours ago
Icelandair
Thu, Nov 27 - Thu, Dec 4
SEA
Seattle
GLA
Glasgow
$539 Roundtrip, just found
$539
Roundtrip
just found
Select Icelandair flight, departing Thu, Nov 27 from Seattle to Glasgow, returning Thu, Dec 4, priced at $539 just found
Icelandair
Mon, Nov 24 - Thu, Dec 4
SEA
Seattle
GLA
Glasgow
$541 Roundtrip, found 1 day ago
$541
Roundtrip
found 1 day ago
Select Icelandair flight, departing Mon, Nov 24 from Seattle to Glasgow, returning Thu, Dec 4, priced at $541 found 1 day ago
Icelandair
Fri, Nov 7 - Tue, Nov 25
SEA
Seattle
GLA
Glasgow
$543 Roundtrip, found 6 days ago
$543
Roundtrip
found 6 days ago
Select Icelandair flight, departing Fri, Nov 7 from Seattle to Glasgow, returning Tue, Nov 25, priced at $543 found 6 days ago
Icelandair
Wed, Feb 11 - Sun, Mar 1
SEA
Seattle
GLA
Glasgow
$546 Roundtrip, found 4 days ago
$546
Roundtrip
found 4 days ago
Select Icelandair flight, departing Wed, Feb 11 from Seattle to Glasgow, returning Sun, Mar 1, priced at $546 found 4 days ago
Icelandair
Sat, Feb 28 - Wed, Mar 4
SEA
Seattle
GLA
Glasgow
$549 Roundtrip, found 6 days ago
$549
Roundtrip
found 6 days ago
Select Icelandair flight, departing Sat, Feb 28 from Seattle to Glasgow, returning Wed, Mar 4, priced at $549 found 6 days ago
Aer Lingus
Sun, Nov 9 - Wed, Dec 10
SEA
Seattle
GLA
Glasgow
$601 Roundtrip, found 12 hours ago
$601
Roundtrip
found 12 hours ago
Select Aer Lingus flight, departing Sun, Nov 9 from Seattle to Glasgow, returning Wed, Dec 10, priced at $601 found 12 hours ago
Delta
Sun, Nov 9 - Wed, Dec 10
SEA
Seattle
GLA
Glasgow
$604 Roundtrip, found 12 hours ago
$604
Roundtrip
found 12 hours ago
Select Delta flight, departing Sun, Nov 9 from Seattle to Glasgow, returning Wed, Dec 10, priced at $604 found 12 hours ago
Virgin Atlantic
Wed, Feb 25 - Tue, Mar 10
SEA
Seattle
GLA
Glasgow
$612 Roundtrip, found 22 hours ago
$612
Roundtrip
found 22 hours ago
Select Virgin Atlantic flight, departing Wed, Feb 25 from Seattle to Glasgow, returning Tue, Mar 10, priced at $612 found 22 hours ago
American Airlines
Mon, Nov 10 - Mon, Dec 8
SEA
Seattle
GLA
Glasgow
$645 Roundtrip, found 8 hours ago
$645
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Mon, Nov 10 from Seattle to Glasgow, returning Mon, Dec 8, priced at $645 found 8 hours ago

Find the cheapest month to fly from Seattle (SEA) to Glasgow (GLA)

January is typically the cheapest month to fly

From $517 - $1,148 per traveler.

Alternative airports near Glasgow

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Glasgow Intl. GLA. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $609
GLA
Glasgow Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $609

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA) cost?
Snag a cheap one-way flight from $426 or cheap return flight from $515 from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA)?
The cheapest month to fly from SEA to GLA is February, when demand is low. Off-peak months are often when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SEA to GLA. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA)?
You'll need to book a flight with a layover if you're traveling from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SEA to GLA?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA) that leaves before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA) last-minute?
Booking your ticket from SEA to GLA shortly before your getaway is generally more expensive. But if there's some wiggle room with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book a SEA to GLA flight and hotel package?
You can save money by securing a SEA to GLA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your ideal flights and accommodations, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Glasgow Intl. Airport (GLA)?
If you booked your SEA to GLA flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Glasgow Intl.
Airlines serving
Aer Lingus, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, United, Virgin Atlantic
Roundtrip price
$515
Distance
4448 mi

Book with confidence

Seattle to Glasgow Flights

The cheapest times to fly from Seattle to Glasgow

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Glasgow are during the month of February. You can find some of the cheapest flights from Seattle to Glasgow with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Glasgow

Sunday is one of the best days to book for cheap flights from Seattle to Glasgow: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Glasgow

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Glasgow in 2025. You can also book with separate airlines for your outbound and return journeys, from $426 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Glasgow flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Glasgow airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Glasgow Flights

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*Available to One Key members.