This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
17 out — 24 out1
Return
1 adult
Economy
Return
1 adult, Economy
Cheapflights Tip: The best prices from Glasgow to Seattle/Tacoma Intl are usually found in January or September, booked 62 days in advance, depart on a Tuesday or Wednesday and return on a Monday
Cheap flight deals from Glasgow to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Glasgow (GG1) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 setembro 2025.
Explore the most affordable flight options available from Glasgow to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 setembro 2025.
sex 26/914:20GLA - SEA
1 stop14h 20mIcelandair
seg 29/915:45SEA - GLA
1 stop13h 40mIcelandair
Deal found 16/9£471
sex 31/1012:35GLA - SEA
1 stop12h 25mIcelandair
sex 7/1114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 16/9£484
ter 9/1212:35GLA - SEA
1 stop12h 25mIcelandair
ter 6/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 14/9£510
sex 31/1008:25GLA - SEA
1 stop17h 55mMultiple Airlines
sex 7/1120:05SEA - GLA
1 stop11h 55mMultiple Airlines
Deal found 16/9£510
qua 29/1006:05GLA - SEA
1 stop13h 40mMultiple Airlines
qua 5/1115:00SEA - GLA
1 stop33h 30mMultiple Airlines
Deal found 14/9£516
qua 29/1006:05GLA - SEA
2 stops21h 40mDelta
qua 5/1115:00SEA - GLA
1 stop17h 35mDelta
Deal found 14/9£526
sex 12/1211:05GLA - SEA
1 stop13h 55mIcelandair
qui 8/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 14/9£526
sáb 13/1212:35GLA - SEA
1 stop12h 25mIcelandair
qui 8/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 14/9£543
seg 8/1211:35GLA - SEA
1 stop13h 20mBritish Airways
ter 6/118:50SEA - GLA
1 stop16h 35mBritish Airways
Deal found 14/9£553
seg 8/1211:35GLA - SEA
1 stop13h 20mBritish Airways
qui 8/113:40SEA - GLA
2 stops17h 30mBritish Airways
Deal found 14/9£556
qua 10/1205:55GLA - SEA
2 stops25h 43mBritish Airways
qua 7/118:50SEA - GLA
1 stop13h 35mBritish Airways
Deal found 14/9£560
qua 10/1205:55GLA - SEA
2 stops25h 43mBritish Airways
qui 8/113:40SEA - GLA
2 stops20h 10mBritish Airways
Deal found 14/9£563
Best flights from Glasgow to Seattle
Discover carefully curated flight deals from Glasgow to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 setembro 2025.
sex 26/914:20GLA - SEA
1 stop14h 20mIcelandair
seg 29/915:45SEA - GLA
1 stop13h 40mIcelandair
Deal found 16/9£471
sex 31/1008:25GLA - SEA
1 stop17h 55mMultiple Airlines
sex 7/1120:05SEA - GLA
1 stop11h 55mMultiple Airlines
Deal found 16/9£510
qua 29/1006:05GLA - SEA
2 stops21h 40mDelta
qua 5/1115:00SEA - GLA
1 stop17h 35mDelta
Deal found 14/9£526
qui 5/312:35GLA - SEA
1 stop12h 25mIcelandair
seg 9/315:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 13/9£508
qua 29/1006:05GLA - SEA
1 stop13h 40mMultiple Airlines
qua 5/1115:00SEA - GLA
1 stop33h 30mMultiple Airlines
Deal found 14/9£516
sex 12/1211:05GLA - SEA
1 stop13h 55mIcelandair
qua 7/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 14/9£526
qua 10/1212:35GLA - SEA
1 stop12h 25mIcelandair
qua 7/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 14/9£526
qua 10/1212:35GLA - SEA
1 stop12h 25mIcelandair
qui 8/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 14/9£526
qui 11/1212:35GLA - SEA
1 stop12h 25mIcelandair
qui 8/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 14/9£526
Last-minute flights from Glasgow to Seattle
Discover last-minute flight deals from Glasgow to Seattle. Data last updated 17 setembro 2025 and is based on user searches.
sex 26/914:20GLA - SEA
1 stop14h 20mIcelandair
seg 29/915:45SEA - GLA
1 stop13h 40mIcelandair
Deal found 16/9£471
dom 28/910:30GLA - SEA
1 stop33h 15mKLM
dom 5/1017:40SEA - GLA
1 stop30h 30mKLM
Deal found 14/9£570
dom 28/906:00GLA - SEA
2 stops21h 00mDelta
dom 5/1017:40SEA - GLA
1 stop14h 30mDelta
Deal found 14/9£590
qua 29/1006:05GLA - SEA
1 stop13h 40mMultiple Airlines
qua 5/1115:00SEA - GLA
1 stop33h 30mMultiple Airlines
Deal found 14/9£516
qua 29/1006:05GLA - SEA
2 stops21h 40mDelta
qua 5/1115:00SEA - GLA
1 stop17h 35mDelta
Deal found 14/9£526
sex 31/1012:35GLA - SEA
1 stop12h 25mIcelandair
sex 7/1114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 16/9£484
sex 31/1008:25GLA - SEA
1 stop17h 55mMultiple Airlines
sex 7/1120:05SEA - GLA
1 stop11h 55mMultiple Airlines
Deal found 16/9£510
sex 31/1017:25GLA - SEA
1 stop26h 20mKLM
sex 7/1109:29SEA - GLA
2 stops16h 26mKLM
Deal found 16/9£576
sex 31/1006:05GLA - SEA
2 stops19h 31mDelta
sex 7/1109:29SEA - GLA
2 stops16h 26mDelta
Deal found 16/9£581
sex 31/1010:40GLA - SEA
2 stops19h 33mFinnair
sex 7/1111:42SEA - GLA
2 stops17h 23mFinnair
Deal found 16/9£593
One-way flights from Glasgow to Seattle
Search for one-way flight options from Glasgow to Seattle. Find affordable one-way fares based on user searches. Data last updated 17 setembro 2025.
qua 10/1208:55GLA - SEA
2 stops33h 33mMultiple Airlines
Deal found 14/9£271
sex 3/1007:55GLA - SEA
3 stops42h 32mMultiple Airlines
Deal found 14/9£291
sáb 4/1023:50GLA - SEA
3 stops39h 50mMultiple Airlines
Deal found 14/9£301
sex 9/108:50GLA - SEA
2 stops33h 29mMultiple Airlines
Deal found 14/9£338
ter 14/1021:55GLA - SEA
2 stops29h 53mMultiple Airlines
Deal found 15/9£379
qua 1/1021:45GLA - SEA
2 stops32h 54mMultiple Airlines
Deal found 14/9£381
qui 2/1006:35GLA - SEA
2 stops24h 04mMultiple Airlines
Deal found 14/9£383
qui 16/1018:40GLA - SEA
3 stops58h 28mMultiple Airlines
Deal found 15/9£387
Cheapflights Fare Finder
Customise your flight search to find flights from Glasgow to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 setembro 2025.
Use the filters below to find and compare flights from Glasgow to Seattle that are best for you.
Fly from
Glasgow
Fly to
Seattle
Route
Depart
Return
Price
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
sex 26/9
14:20-20:40
1 stop14h 20m
Seattle/Tacoma Intl
seg 29/9
15:45-13:25
1 stop13h 40m
£471
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
qui 5/3
12:35-17:00
1 stop12h 25m
Seattle/Tacoma Intl
seg 9/3
15:35-09:55
1 stop11h 20m
£508
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
sex 31/10
08:25-19:20
1 stop17h 55m
Seattle/Tacoma Intl
sex 7/11
20:05-16:00
1 stop11h 55m
£510
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
qua 29/10
06:05-12:45
1 stop13h 40m
Seattle/Tacoma Intl
qua 5/11
15:00-08:30
1 stop33h 30m
£516
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
qua 29/10
06:05-20:45
2 stops21h 40m
Seattle/Tacoma Intl
qua 5/11
15:00-16:35
1 stop17h 35m
£526
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
sex 12/12
11:05-17:00
1 stop13h 55m
Seattle/Tacoma Intl
qua 7/1
14:35-09:55
1 stop11h 20m
£526
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
qua 10/12
12:35-17:00
1 stop12h 25m
Seattle/Tacoma Intl
qua 7/1
14:35-09:55
1 stop11h 20m
£526
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
qua 10/12
12:35-17:00
1 stop12h 25m
Seattle/Tacoma Intl
qui 8/1
14:35-09:55
1 stop11h 20m
£526
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
qui 11/12
12:35-17:00
1 stop12h 25m
Seattle/Tacoma Intl
qui 8/1
14:35-09:55
1 stop11h 20m
£526
GlasgowSeattle
GLA - SEA
GLASEA
Glasgow Intl
qua 10/12
08:55-10:28
2 stops33h 33m
£271
Flights are sorted by cheapest return flights first.
Deals found on 14/9
Showing 1-10 of 19 results
1
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Best time to book a flight from Glasgow to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Glasgow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Glasgow to Seattle
How far ahead should I book a flight from Glasgow to Seattle?
Use this chart to determine the optimal time to book a return flight from Glasgow to Seattle. Price data was last updated on 12 September 2025.
The price you pay for your flight from Glasgow to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Glasgow to Seattle?
Currently, January is the cheapest month in which you can book a flight from Glasgow to Seattle (average of £622). Flying from Glasgow to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from GLA to SEA?
Find hourly flight availability from Glasgow to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 setembro 2025.
One of the essential ways to save on airfare from Glasgow to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 10% on airfare.
How much does it cost for a return flight from Glasgow to Seattle?
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 17 setembro 2025.
Get a feel of what it's like to fly with KLM, Aer Lingus, andIcelandair from Glasgow to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Related info for your journey
Find useful and relevant information for your journey from Glasgow to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Seattle from Glasgow?
Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Glasgow to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Glasgow; the airport handles an average of 0 inbound flights from Glasgow per day. You should also have plenty of airline options to choose from since 9 airlines have flights to the Seattle airport from Glasgow. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.
How long is the flight from Glasgow to Seattle?
There are many flights that can get you from Glasgow to Seattle in 14h 20m. Fly via Icelandair to get the fastest option. There are 4445 mi between Glasgow and Seattle.
What are the cheapest airlines flying from Glasgow to Seattle round-trip?
Cheapflights users have booked flights from Glasgow to Seattle round-trip from £425. Other airlines that can offer you cheap pricing are KLM, from £433, and Lufthansa, from £454. These flights start at 30% lower than the current average price 3 months from now.
Can I find deals for business class flights from Glasgow to Seattle?
Yes. Cheapflights offers flight deals from Glasgow to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Glasgow to Seattle?
Currently, January is the cheapest month in which you can book a flight from Glasgow to Seattle (average of £622). Flying from Glasgow to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 setembro 2025.
Discover the top 9 airlines that operate flights from Glasgow to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 setembro 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Glasgow to Seattle?
Cheapflights helps you search for flights from Glasgow to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Glasgow to Seattle?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Glasgow to Seattle.
Can Cheapflights find flights from Glasgow to Seattle with no change fees?
Certainly. Search results for flights to Seattle from Glasgow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Glasgow to Seattle become cheaper?
Yes, Cheapflights offers price alerts on Glasgow to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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