$462 Cheap Flights from Glasgow (GLA) to Seattle (SEA)
Popular airlines from Glasgow International Airport (GLA) to Seattle-Tacoma International Airport (SEA)
British AirwaysBritish Airways
Aer LingusAer Lingus
FinnairFinnair
Air FranceAir France
KLMKLM
IberiaIberia
IcelandairIcelandair
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Cheap Flights from Glasgow to Seattle (GLA-SEA)
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Glasgow (GLA) to Seattle (SEA) at a glance
Explore a range of airlines offering flights from Glasgow (GLA) to Seattle (SEA) on this international long-haul journey. Compare choices from full-service carriers to find the best itinerary that aligns with your budget, schedule, and travel plans as you discover Seattle's iconic attractions and neighborhoods. Get all the essential details for flights departing from Glasgow International Airport (GLA) to Seattle-Tacoma International Airport (SEA).
- Fastest flight duration: around 10h 45m in-flight, plus roughly 2 hours layover with one stop
- Route distance: roughly 4,500 miles (7,240 km)
- Flights per week: around 7 departures on average
- Typical fares (one-way): economy tickets often range from $410–$1730, depending on seasonality and how far ahead you book
Flights from Glasgow International Airport (GLA) to Seattle - Tacoma International Airport (SEA)
Recent traveler bookings highlight the most popular airlines for flights from Glasgow to Seattle, typically favored for their one-stop services. Common layover points include Keflavik International Airport (KEF) with approximately a 2-hour stop, Dublin Airport (DUB) at about 3 hours, and Heathrow Airport (LHR) with a 1 hour and 45 minute layover. This variety allows travelers to customize their itineraries based on price, total travel time, and cabin class preferences.
- Icelandair: This comprehensive airline provides one-stop travel options, with one-way ticket prices generally falling between $435 and $1720. It represents about 47% of the flights on this route, featuring an in-flight duration of 10 hours and 45 minutes, and a total travel time of approximately 13 hours, including layover.
- Aer Lingus: As a full-service airline, Aer Lingus offers one-stop journeys, with one-way fares usually ranging from $425 to $1035. It constitutes roughly 21% of the departures along this route, with a similar in-flight time of 10 hours and 45 minutes and a total journey time of around 13 hours, including layover.
- British Airways: This full-service carrier provides one-stop service, with one-way fares typically priced between $425 and $1400. Accounting for about 12% of the departures on this route, the airline features an in-flight duration of 10 hours and 45 minutes, culminating in a total travel time of roughly 13 hours, including layover.
Alternative route from Glasgow (GLA) to Seattle (SEA)
- Edinburgh to Seattle (EDI-SEA): Edinburgh Airport (EDI) lies approximately 42 miles from Glasgow International Airport (GLA). One-way economy tickets for this journey generally fall between $445 and $1540, influenced by the time of year and advance booking. Travelers can choose from both one-stop and multi-stop itineraries, with frequent connections through Dublin Airport (DUB) and Heathrow Airport (LHR). Notable airlines servicing this route include Aer Lingus and the budget-friendly WestJet. Additionally, business class options are available for passengers seeking a more premium experience.
How to find the best prices for flights from Glasgow (GLA) to Seattle (SEA)
Getting some of the best deals on flights from Glasgow to Seattle is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually found when booking within two weeks, even though most travelers tend to book at least two months in advance. Morning departures (5am-12pm) often offer lower prices, while afternoon flights (12pm-6pm) are more popular. Additionally, flying on Tuesday generally results in cheaper fares, though Saturday remains the busiest travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Seattle - Tacoma International Airport from Glasgow International Airport
Seattle welcomes travelers from Glasgow with a range of transport options based on price, convenience, and proximity. For departures, Glasgow International Airport is roughly a 15-minute drive (covering about 9 miles) from central Glasgow. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
- Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
- Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles from the airport and can be reached on foot, while Tukwila Station, a train station, is situated about 4.3 miles from the airport and is best accessed by car.
Glasgow to Seattle Flights
The cheapest times to fly from Glasgow to Seattle
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 Glasgow to Seattle are during the month of October. You can find some of the cheapest flights from Glasgow to Seattle with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Glasgow to Seattle
Sunday is one of the best days to book for cheap flights from Glasgow to Seattle: 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 Glasgow to Seattle
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 Glasgow to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $462 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 Glasgow to Seattle 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 Glasgow to Seattle 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.
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 $462 and cheap return flights $683 Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights usually range from $669 to $5562, and return flights typically cost between $854 and $4138. 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 Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest month to fly from GLA to SEA is October 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're 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.
What is the cheapest airline that flies from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Air France is one of the cheapest airlines offering connecting flights from Glasgow Intl. (GLA) to Seattle - Tacoma Intl. (SEA), with round-trip tickets starting from around $745 with a layover in Schiphol (AMS). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
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.
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 at around 5:50 AM, operated by British Airways and American Airlines. This seasonal service is available in September, allowing you to make the most of your time in Seattle. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
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) to Seattle (SEA) are in the early morning, from 6am to 9am. About 34% of passengers prefer this time window. Many major carriers, including British Airways, American Airlines, and KLM, offer flights during this window. This timing works well because it allows you to arrive in Seattle with a full day ahead to explore.
How long does it take to fly from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A flight from GLA to SEA with a layover takes around 13 hours 50 minutes, with the route covering approximately 4,449 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Glasgow (GLA-Glasgow Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Business class is available on flights from GLA to SEA. Airlines that offer business class service on this route include:
- Lufthansa
- British Airways
- Icelandair
- KLM
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 from Glasgow Intl. (GLA)?
From Glasgow Intl. (GLA), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like Heathrow (LHR), Frankfurt Intl. (FRA), 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.) Seattle Vacation Packages 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 International Airport |
|---|---|
Destination airport | Seattle-Tacoma International Airport |
Distance | 4,448 miles away |
Airlines serving | British Airways, Aer Lingus, Finnair, Air France, KLM, Iberia, Icelandair, Virgin Atlantic, American Airlines, Delta, United |
Popular airline | British Airways |
Roundtrip price | $683 |