C$595 Cheap Flights from Glasgow (GLAS) to Seattle (SEAA)

Compare Glasgow to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

Book the best Seattle fare with no extra fees

Flight deals from Glasgow to Seattle

Looking for a cheap last-minute deal or the best return flight from Glasgow to Seattle? If you want to travel next month, return fares start from C$947. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Glasgow to Seattle

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

Glasgow to Seattle: Flight information

The things to know before you go.
Cheapest flight foundC$595
Cheapest month to flyMay

Finding cheap flights from Glasgow 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 to Seattle is C$876. 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 to Seattle. But we found flights with one or more stops from C$876.
As of April 2026, there are no flights flying from Glasgow to Seattle.
The cheapest month to fly from Glasgow to Seattle is usually April.
If you're flying from Glasgow, 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 C$876.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Glasgow to Seattle on Thursday, April 23, 2026.
No airlines currently offer direct flights between Glasgow 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.
The cheapest airline that flies to Seattle is Ryanair .

Travelling from Glasgow to Seattle: what you need to know

  • There are two main airports you can take off from in Glasgow. Check out your options departing from Glasgow International Airport (GLA) or Glasgow Prestwick Airport (PIK) when reserving your flight from Glasgow to Seattle.

  • When working out where to arrive in Seattle, Seattle-Tacoma International Airport (SEA) and Lake Union Sea Plane Base (LKE) are the primary hubs.

  • Leave plenty of time to catch your flight from Glasgow to Seattle. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Longer lines at check-in and security are more likely if you're heading away during high season, so allow some extra wiggle room. A good rule of thumb for peak times? Arrive up to four hours early for international flights and two hours for domestic departures.

  • To travel to United States for tourism purposes, you'll need an ETA if you have a passport from United Kingdom. However, visa rules can change and you may need further documentation depending on the duration and purpose of your trip. Always check the latest guidelines before you book your cheap flight from Glasgow to Seattle.

Flying from Glasgow

Glasgow International Airport (GLA)

  • A stopover is the ideal opportunity to take a break from travelling — and perhaps even explore a different city. When browsing flights from Glasgow to Seattle leaving from Glasgow International Airport, uncheck the 'Direct flights only' box to see where you can visit along the way. Popular options include:

    • London Heathrow Airport (LHR)

    • Keflavik International Airport (KEF)

    • Dublin Airport (DUB)

  • GLA is around 14 kilometres from central Glasgow. If you're ride-sharing, driving or catching a cab from the centre, it'll take you 15 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the trip time to be approximately 33 minutes.

  • Booked an early flight from Glasgow to Seattle? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by choosing one of these stays close to Glasgow International Airport:

Glasgow Prestwick Airport (PIK)

  • Break up your flight from Glasgow to Seattle with a stop so you can stretch your legs or cross a new place off your list. Popular stopovers between Glasgow International Airport and Seattle are:

    • London Heathrow Airport (LHR)

    • Keflavik International Airport (KEF)

    • Dublin Airport (DUB)

  • PIK is about 48 kilometres from central Glasgow. It'll take you 38 minutes or so to get to the airport if you're driving from the city centre. Public transport takes roughly 53 minutes.

  • Start your vacation early with an extra night away from home. Before catching your flight from Glasgow to Seattle, take things easy in one of these hotels near Glasgow Prestwick Airport:

Arriving in Seattle

Seattle-Tacoma International Airport (SEA)

Lake Union Sea Plane Base Airport (LKE)

How to find the cheapest flights from Glasgow to Seattle

  • Currently, C$595 is the best price we've found for a one-way ticket from Glasgow to Seattle. The cheapest price for a return flight is C$876. Bear in mind fares can change due to demand at the time of booking.

  • It's usually smart to book ahead of time if you want to find cheap flights from Glasgow to Seattle. That's because airlines adjust prices based on demand, which tends to increase closer to departure.

  • The 'Whole month' tool shows you the cheapest tickets from Glasgow to Seattle across the entire month. It's a great way to find a bargain if your travel dates aren't set in stone.

  • Create a Price Alert for cheap flights from Glasgow to Seattle. You don't need to look every day to see if prices have dropped. We'll let you know as soon as the price changes.

  • Tailor your trip using filters. Select your preferred departure and arrival times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from Glasgow to Seattle.

Best time to go to Seattle

  • July is the most popular month for flights from Glasgow to Seattle. To steer clear of the crowds, visit Seattle in May.

  • Book your flight from Glasgow to Seattle for August if you'd like to experience the city during its warmest month. Expect temperatures in Seattle to range from 12ºC to 28ºC.

  • February has average temperatures of between -1ºC and 11ºC. Search for cheap flights from Glasgow to Seattle sometime then if you like cooler conditions.

More about Seattle

  • Start your Seattle trip right by choosing the perfect place to stay. After booking your flight from Glasgow to Seattle, browse our selection of accommodation options including:

  • Gas Works - Lake View Point and Queen Anne Bowl Playfield are just the start of the top-rated attractions to add to your Seattle travel itinerary. Keep the adventure rolling by checking out LMN Architects.

Complete your Seattle trip with a car rental

  • Discover our range of car rentals once you've booked your hotel and cheap flight from Glasgow to Seattle. Whether you want an SUV, a compact ride or something with all the extras, you can compare companies in one go to find the perfect deal.

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