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£427 Cheap Flights from Glasgow (GLA) to Seattle (SEA)

View £427 flight on Tue, 24 Nov 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £427 for one-way flights and £574 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Mon, 16 Nov - Mon, 23 Nov
GLA
Glasgow
SEA
Seattle
£574 Return, found 2 days ago
£574
Return
found 2 days ago
Select Icelandair flight, departing Mon, 16 Nov from Glasgow to Seattle, returning Mon, 23 Nov, priced at £574 found 2 days ago
British Airways
Mon, 16 Nov - Mon, 23 Nov
GLA
Glasgow
SEA
Seattle
£588 Return, found 2 days ago
£588
Return
found 2 days ago
Select British Airways flight, departing Mon, 16 Nov from Glasgow to Seattle, returning Mon, 23 Nov, priced at £588 found 2 days ago
British Airways
Mon, 16 Nov - Mon, 23 Nov
GLA
Glasgow
SEA
Seattle
£597 Return, found 2 days ago
£597
Return
found 2 days ago
Select British Airways flight, departing Mon, 16 Nov from Glasgow to Seattle, returning Mon, 23 Nov, priced at £597 found 2 days ago
Finnair
Mon, 16 Nov - Mon, 23 Nov
GLA
Glasgow
SEA
Seattle
£603 Return, found 2 days ago
£603
Return
found 2 days ago
Select Finnair flight, departing Mon, 16 Nov from Glasgow to Seattle, returning Mon, 23 Nov, priced at £603 found 2 days ago
Finnair
Mon, 16 Nov - Mon, 23 Nov
GLA
Glasgow
SEA
Seattle
£604 Return, found 2 days ago
£604
Return
found 2 days ago
Select Finnair flight, departing Mon, 16 Nov from Glasgow to Seattle, returning Mon, 23 Nov, priced at £604 found 2 days ago
British Airways
Mon, 16 Nov - Mon, 23 Nov
GLA
Glasgow
SEA
Seattle
£607 Return, found 2 days ago
£607
Return
found 2 days ago
Select British Airways flight, departing Mon, 16 Nov from Glasgow to Seattle, returning Mon, 23 Nov, priced at £607 found 2 days ago
Icelandair
Wed, 18 Nov - Sat, 28 Nov
GLA
Glasgow
SEA
Seattle
£612 Return, found 4 days ago
£612
Return
found 4 days ago
Select Icelandair flight, departing Wed, 18 Nov from Glasgow to Seattle, returning Sat, 28 Nov, priced at £612 found 4 days ago
British Airways
Mon, 16 Nov - Mon, 23 Nov
GLA
Glasgow
SEA
Seattle
£614 Return, found 2 days ago
£614
Return
found 2 days ago
Select British Airways flight, departing Mon, 16 Nov from Glasgow to Seattle, returning Mon, 23 Nov, priced at £614 found 2 days ago
American Airlines
Thu, 10 Dec - Thu, 17 Dec
GLA
Glasgow
SEA
Seattle
£676 Return, found 2 hours ago
£676
Return
found 2 hours ago
Select American Airlines flight, departing Thu, 10 Dec from Glasgow to Seattle, returning Thu, 17 Dec, priced at £676 found 2 hours ago
Aer Lingus
Mon, 5 Oct - Mon, 19 Oct
GLA
Glasgow
SEA
Seattle
£684 Return, found 2 days ago
£684
Return
found 2 days ago
Select Aer Lingus flight, departing Mon, 5 Oct from Glasgow to Seattle, returning Mon, 19 Oct, priced at £684 found 2 days ago

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from £656
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from £656

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

February is typically the cheapest month to fly

From £441 - £742 per traveller.

Frequently asked questions

How much does a flight from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from £427 and cheap return flights from £574 GLA to SEA with Expedia. One-way flights typically cost between £675 and £3337, and return flights often range between £656 and £4100. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when GLA to SEA ticket fares go up or down.
What is the cheapest month to fly from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest months to fly from GLA to SEA are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter GLA to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 21 connecting flights per day from Glasgow (GLA) to Seattle, WA (SEA). Some common connection points include Dublin (DUB), Heathrow (LHR), and Schiphol (AMS).
What is the earliest flight from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs around 5:50 AM. This service is seasonal, active in August and October, and is operated by British Airways and American Airlines. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Glasgow (GLA) to Seattle, WA (SEA) on a Tuesday, with around 49 flights available. This offers a good selection of options for your journey. Major airlines on this route include British Airways, KLM, and Aer Lingus. Looking at the week, Tuesdays offer notably more flight options compared to other days, giving you more flexibility when planning your trip.
What are the most popular departure times for flights from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are between 9am and 12pm. Many major carriers, including British Airways, Lufthansa and KLM, offer flights during this window. Many travellers prefer these times as they allow for a morning departure and an afternoon arrival, giving you plenty of time to settle in at your destination.
How long does it take to fly from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are no nonstop flights from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). The distance between these two cities is approximately 7,160 kilometers. For flights with one stop, you can expect the journey to typically take around 13 hours 48 minutes. If your flight has two or more stops, the travel time will be longer, usually around 19 hours 30 minutes. Keep in mind that these are average times, and your actual travel duration can vary based on the specific route, layover times, and factors like wind patterns.
Can you fly business or first class from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Yes, you can fly business class between GLA and SEA. Airlines that offer business class service on this route include:
  • Lufthansa
  • British Airways
  • KLM
  • Edelweiss Air
  • Icelandair
How do I earn miles on a Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle, WA (SEA) from Glasgow (GLA)?
If you're planning to travel to Seattle from Glasgow Intl. (GLA), you can fly directly into Seattle - Tacoma Intl. (SEA). Some flights may connect through major hubs like Heathrow (LHR), Frankfurt Intl. (FRA), or Schiphol (AMS) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Glasgow Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Aer Lingus, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, United, Virgin Atlantic
Return price
£573
Distance
7117 km

Book with confidence

Compare flights from Glasgow to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Glasgow to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Glasgow Intl. to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Glasgow Intl. (GLA) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Glasgow to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Glasgow Intl. to Seattle - Tacoma Intl. start at just £574 and range up to £684.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Glasgow and Seattle
  • booking your flight during November, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Glasgow to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Glasgow Intl. to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Glasgow to Seattle easily and book with confidence

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