Cheap Flights from Glasgow Intl to Seattle

Compare Glasgow Intl to Seattle flight deals

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Flight deals from Glasgow Intl to Seattle

Looking for a cheap last-minute deal or the best return flight from Glasgow Intl Airport to Seattle? If you want to travel next month, return fares start from $1,366. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Glasgow Intl to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Glasgow Intl to Seattle flights are currently cheapest in April.

Glasgow to Seattle: Flight information

The things to know before you go.
Cheapest flight found$1,342
Cheapest month to flyApril

Finding cheap flights from Glasgow Intl to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Glasgow Intl to Seattle is $1,342. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Glasgow Intl to Seattle. But we found flights with one or more stops from $1,342.
As of April 2026, there are no flights flying from Glasgow Intl to Seattle.
The cheapest month to fly from Glasgow Intl to Seattle is usually April.
If you're flying from Glasgow Intl Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $1,342.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Glasgow Intl Airport to Seattle on Thursday, 23 April 2026.
No airlines currently offer direct flights between Glasgow Intl Airport and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 8°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Icelandair offers the cheapest flight tickets to Seattle.

Flying from Glasgow International Airport (GLA) to Seattle: what you need to know

  • The timezone in Seattle is UTC-7. The city is seven hours behind Glasgow, where Glasgow International Airport is located.

  • Give yourself enough time to catch your GLA to Seattle flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Heading off during a peak time like public or school holidays? Expect longer queues at security and check-in. To be on the safe side, arrive up to four hours before international flights and two hours before domestic departures.

  • Consider adding a stopover to potentially find a cheaper flight ticket from GLA to Seattle. Simply deselect 'Direct flights only' during your search. Take a break (and maybe save some cash) by stopping at one of these connection hubs:

    • London Heathrow Airport (LHR)

    • Dublin Airport (DUB)

    • Keflavik International Airport (KEF)

  • Located around 11 kilometres from central Glasgow, GLA can be reached in about 15 minutes by car, depending on traffic. The journey on public transport will take roughly 35 minutes.

  • Want a hassle-free start to your travels? Stay near GLA. Whether you're catching an early flight from Glasgow International Airport to Seattle or don't want departure day to feel hectic, these hotels have you covered:

  • When it comes to Glasgow International Airport's on-time performance, data shows 70.07% of flights arrive within the expected time frame.

How to find the cheapest flights from Glasgow International Airport (GLA) to Seattle

  • $1,006 is the cheapest price we've seen for a one-way Glasgow International Airport to Seattle flight. A return flight ticket right now is $1,342. Depending on how early you book and the availability, these fares can change.

  • Booking in advance is often the key to finding a cheap flight from GLA to Seattle. Airlines adjust prices based on demand, so the closer you get to departure, the more it could cost you.

  • If you're willing to be flexible with your travel plans, check out the 'Whole month' search tool. It'll give you the cheapest price across each month when searching for a Glasgow International Airport to Seattle ticket.

  • Snapping up a cheap flight from GLA to Seattle is a breeze with Price Alerts. Simply create one of these automatic notifications and we'll notify you as soon as a deal gets even better.

  • Pick your ideal departure and arrival times, number of stops and airlines with our filters. Then, sort the results for your flight from Glasgow International Airport to Seattle by 'Cheapest,' 'Fastest' or 'Best.'

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from central Seattle. If you're catching a cab or a ride-share, the drive takes about 20 minutes.

  • Travelling on public transport takes around 55 minutes.

  • The last thing you need is a lengthy journey to your hotel if you're landing late on a flight from Glasgow International Airport to Seattle. Stay at one of these accommodation options near SEA instead:

  • Travel at your own speed with a Seattle-Tacoma International Airport rental car. Pick up your wheels from Thrifty, Europcar or Budget and experience more of Seattle and beyond.

  • Lock in the best deal by reserving your vehicle from Seattle-Tacoma International Airport about one week before your flight from GLA to Seattle.

Lake Union Sea Plane Base Airport (LKE)

  • Lake Union Sea Plane Base Airport (LKE) is about 3 kilometres from the centre of Seattle. Following your flight from Glasgow International Airport to Seattle, it'll take you around 10 minutes to get to the heart of the city in a cab or ride-share.

  • You can expect the journey to take roughly 25 minutes on public transport.

  • You'll find some comfortable places to drop your things at near LKE. Kick back and get cosy after your GLA to Seattle flight at any of these well-located options:

Best time to go to Seattle

  • Before locking in your flights from Glasgow International Airport to Seattle, consider which time of year is best for you. High season in Seattle offers a bustling atmosphere and plenty to do, while the low season brings cheaper deals on hotels and smaller crowds.

  • Before locking in your Glasgow International Airport to Seattle flight ticket, think about the type of weather you enjoy. August is the warmest month in Seattle, with temperatures ranging from 12ºC to 28ºC.

  • If you want cooler conditions, look for a cheap ticket from GLA to Seattle in February when temperatures average between -1ºC and 11ºC.

More about Seattle

  • When it comes to searching for somewhere to rest your head, you'll find the best stays in Seattle right here. Check out these hotels as soon as you've booked your flight from Glasgow International Airport to Seattle:

  • LMN Architects and Greyhound: Bus Station are just two of the top-rated attractions to add to your Seattle itinerary. Continue your sightseeing adventures at Boeing Radiation Effects Lab.

Explore more of United States

  • Portland is just one of the many places in United States waiting to be discovered once you've seen the sights of Seattle. Around 241 kilometres away to the south, check out popular attractions including Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • If you're ready to explore another major stop in United States, head for Spokane, about 370 kilometres east of Seattle. Manito Park, Northwest Museum of Arts & Culture and Spokane Falls are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.