Cheap flights from Seattle to Glasgow Intl Airport from £239
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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
11 Jan — 18 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Glasgow Intl are usually found in November or February, booked 36 days in advance, depart on a Monday or Tuesday and return on a Tuesday
Cheap flight deals from Seattle to Glasgow Intl
Enter your travel dates to find the best prices.
Cheapest flights from Seattle to Glasgow Intl
Explore the most affordable flight options available from Seattle to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.
Sun 14/1217:36SEA - GLA
2 stops32h 19mIcelandair
Fri 19/1212:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 10/12£1,004
Sun 14/1215:10SEA - GLA
2 stops24h 00mLufthansa
Fri 19/1212:50GLA - SEA
2 stops56h 30mLufthansa
Deal found 10/12£1,058
Sun 14/1220:05SEA - GLA
1 stop15h 35mAer Lingus
Fri 19/1212:00GLA - SEA
1 stop14h 20mAer Lingus
Deal found 10/12£1,087
Wed 17/1220:05SEA - GLA
1 stop11h 55mAer Lingus
Mon 22/1208:20GLA - SEA
1 stop18h 00mAer Lingus
Deal found 11/12£1,099
Wed 17/1211:15SEA - GLA
2 stops17h 30mKLM
Mon 22/1217:20GLA - SEA
1 stop26h 30mKLM
Deal found 11/12£1,108
Wed 17/1220:05SEA - GLA
1 stop16h 55mMultiple Airlines
Mon 22/1223:35GLA - SEA
2 stops48h 05mMultiple Airlines
Deal found 11/12£1,193
Wed 17/1207:15SEA - GLA
2 stops24h 35mIberia
Mon 22/1220:25GLA - SEA
2 stops34h 48mIberia
Deal found 12/12£1,264
Wed 17/1211:34SEA - GLA
2 stops22h 46mBritish Airways
Mon 22/1220:25GLA - SEA
1 stop23h 05mBritish Airways
Deal found 12/12£1,277
Mon 15/1220:05SEA - GLA
1 stop27h 45mMultiple Airlines
Sun 4/122:15GLA - SEA
2 stops32h 15mMultiple Airlines
Deal found 11/12£1,311
Wed 17/1207:20SEA - GLA
2 stops21h 25mDelta
Mon 22/1206:05GLA - SEA
2 stops18h 02mDelta
Deal found 11/12£1,380
Best flights from Seattle to Glasgow Intl
Discover carefully curated flight deals from Seattle to Glasgow Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.
Thu 19/214:35SEA - GLA
1 stop11h 20mIcelandair
Fri 27/212:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 11/12£357
Fri 6/313:35SEA - GLA
1 stop15h 30mBritish Airways
Fri 13/309:40GLA - SEA
1 stop15h 15mBritish Airways
Deal found 11/12£438
Sat 24/114:35SEA - GLA
1 stop11h 20mIcelandair
Tue 17/212:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 10/12£366
Sat 7/213:35SEA - GLA
1 stop13h 10mBritish Airways
Sat 14/206:35GLA - SEA
1 stop12h 55mBritish Airways
Deal found 11/12£438
Thu 22/118:50SEA - GLA
1 stop15h 00mBritish Airways
Thu 29/120:20GLA - SEA
1 stop23h 10mBritish Airways
Deal found 9/12£452
Fri 30/113:35SEA - GLA
1 stop15h 30mBritish Airways
Tue 3/206:25GLA - SEA
1 stop13h 05mBritish Airways
Deal found 9/12£453
Last-minute flights from Seattle to Glasgow Intl
Discover last-minute flight deals from Seattle to Glasgow Intl. Data last updated 12 December 2025 and is based on user searches.
Sun 11/114:35SEA - GLA
1 stop11h 20mIcelandair
Wed 21/112:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 12/12£367
Sun 11/114:04SEA - GLA
2 stops16h 31mBritish Airways
Wed 21/111:40GLA - SEA
1 stop13h 15mBritish Airways
Deal found 12/12£649
Thu 22/118:50SEA - GLA
1 stop15h 00mBritish Airways
Thu 29/120:20GLA - SEA
1 stop23h 10mBritish Airways
Deal found 9/12£452
Thu 22/114:35SEA - GLA
3 stops21h 05mMultiple Airlines
Thu 29/108:20GLA - SEA
2 stops16h 40mMultiple Airlines
Deal found 9/12£642
Fri 23/114:35SEA - GLA
1 stop11h 20mIcelandair
Fri 30/112:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 10/12£364
Sat 24/114:35SEA - GLA
1 stop11h 20mIcelandair
Tue 17/212:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 11/12£366
Sat 24/108:04SEA - GLA
2 stops18h 41mBritish Airways
Tue 17/214:00GLA - SEA
1 stop34h 55mBritish Airways
Deal found 11/12£450
Fri 30/113:35SEA - GLA
1 stop15h 30mBritish Airways
Tue 3/206:25GLA - SEA
1 stop13h 05mBritish Airways
Deal found 9/12£453
One-way flights from Seattle to Glasgow Intl
Search for one-way flight options from Seattle to Glasgow Intl. Find affordable one-way fares based on user searches. Data last updated 12 December 2025.
Sat 24/119:54SEA - GLA
2 stops30h 01mMultiple Airlines
Deal found 10/12£239
Mon 4/518:45SEA - GLA
1 stop28h 35mMultiple Airlines
Deal found 11/12£273
Mon 6/418:45SEA - GLA
1 stop28h 35mMultiple Airlines
Deal found 10/12£274
Wed 7/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 10/12£280
Sat 24/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 10/12£286
Sun 3/507:05SEA - GLA
3 stops40h 50mMultiple Airlines
Deal found 11/12£296
Wed 7/107:15SEA - GLA
3 stops42h 40mMultiple Airlines
Deal found 10/12£299
Tue 5/522:55SEA - GLA
2 stops33h 10mMultiple Airlines
Deal found 11/12£300
Find flight deals from Seattle to Glasgow Intl
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Glasgow Intl (GLA). 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 12 December 2025.
Customise your flight search to find flights from Seattle to Glasgow Intl 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 12 December 2025.
Use the filters below to find and compare flights from Seattle to Glasgow Intl Airport that are best for you.
Fly from
Seattle
Fly to
Glasgow Intl
Route
Depart
Return
Price
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Thu 19/2
14:35-09:55
1 stop11h 20m
Glasgow Intl
Fri 27/2
12:35-17:00
1 stop12h 25m
£357
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Sat 24/1
14:35-09:55
1 stop11h 20m
Glasgow Intl
Tue 17/2
12:35-17:00
1 stop12h 25m
£366
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Fri 6/3
13:35-13:05
1 stop15h 30m
Glasgow Intl
Fri 13/3
09:40-17:55
1 stop15h 15m
£438
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Sat 7/2
13:35-10:45
1 stop13h 10m
Glasgow Intl
Sat 14/2
06:35-11:30
1 stop12h 55m
£438
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Thu 22/1
18:50-17:50
1 stop15h 00m
Glasgow Intl
Thu 29/1
20:20-11:30
1 stop23h 10m
£452
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Fri 30/1
13:35-13:05
1 stop15h 30m
Glasgow Intl
Tue 3/2
06:25-11:30
1 stop13h 05m
£453
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Sat 24/1
19:54-09:55
2 stops30h 01m
£239
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Tue 5/5
18:45-21:20
1 stop18h 35m
£273
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Mon 6/4
18:45-07:20
1 stop28h 35m
£274
SeattleGlasgow
SEA - GLA
SEAGLA
Seattle/Tacoma Intl
Wed 7/1
14:35-09:55
1 stop11h 20m
£280
Flights are sorted by cheapest return flights first.
Deals found on 10/12
Showing 1-10 of 13 results
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Best time to book a flight from Seattle to Glasgow Intl
Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Seattle 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 Seattle to Glasgow Intl Airport
Prices
More
How far ahead should I book a flight from Seattle to Glasgow Intl Airport?
Use this chart to determine the optimal time to book a return flight from Seattle to Glasgow Intl. Price data was last updated on 5 December 2025.
To ensure you get the cheapest price possible for a flight from Seattle to Glasgow Intl Airport, you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Seattle to Glasgow Intl Airport?
Currently, March is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of £390). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £613). 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 SEA to GLA?
Find hourly flight availability from Seattle to Glasgow Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.
It’s typically best to fly out from Seattle to Glasgow Intl Airport in the morning. Doing so could potentially save you 59% on the flight price compared to flying in the evening, which is usually more expensive.
What’s the top stopover airport for flights from Seattle to Glasgow Intl Airport?
Share of one-stop return flights from Seattle to Glasgow Intl Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 75% of one-stop itineraries from Seattle to Glasgow Intl Airport on Cheapflights.
What’s the cheapest stopover airport for flights from Seattle to Glasgow Intl Airport?
Average return fare for one-stop flights from Seattle to Glasgow Intl Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £518.
What’s the fastest stopover option from Seattle to Glasgow Intl Airport?
Shortest average travel time for one-stop one-way flights from Seattle to Glasgow Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 10h 34m.
Which airport typically offers the quickest stopover for flights from Seattle to Glasgow Intl Airport?
Average stopover duration for one-stop one-way flights from Seattle to Glasgow Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 28m.
Reviews of airlines servicing Glasgow Intl
Get insights into the airlines that provide service to Glasgow Intl. 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 Glasgow Intl. Reviews last updated 12 December 2025.
See what other customers who have flown with Icelandair from Seattle to Glasgow Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
The airport in Reykjavik had too few seats at the departure gate. Otherwise the airport experience was fine. The flight was timely and smooth. The airplane was well maintained and staff pleasant and efficient
The airport in Reykjavik had too few seats at the departure gate. Otherwise the airport experience was fine. The flight was timely and smooth. The airplane was well maintained and staff pleasant and efficient
Related info for your journey
Find useful and relevant information for your journey from Seattle to Glasgow Intl. 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 from for flights from Seattle to Glasgow Intl?
Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Glasgow Intl. On average, Seattle/Tacoma Intl has 0 outbound flights to Glasgow Intl per day from 1 airline. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.
How long is the flight from Seattle to Glasgow Intl Airport?
A quick flight from Seattle to Glasgow Intl Airport can take about 11h 20m. Icelandair provides one of the quickest options available for as low as £357. There are 4445 mi between Seattle and Glasgow Intl Airport. Both multi-stop and direct flights can be found to your destination and back.
What is the cheapest airline to fly from Seattle to Glasgow Intl Airport round-trip?
Our cheapest airline available from Seattle to Glasgow Intl Airport is Icelandair. Our recent data shows that you can find tickets from as low as £426 on this airline. Icelandair is currently priced 29% below the average price you’ll pay for this route.
Can I find deals for business class flights from Seattle to Glasgow Intl?
Yes. Cheapflights offers flight deals from Seattle to Glasgow Intl 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 Seattle to Glasgow Intl Airport?
Currently, March is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of £390). Flying from Seattle to Glasgow Intl Airport in July is currently the most expensive (average of £613). 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 Glasgow Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Discover the top airline that operate flights from Seattle to Glasgow Intl. 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 12 December 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 Seattle to Glasgow Intl?
When you search for this flight from Seattle to Glasgow Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Seattle to Glasgow Intl?
Cheapflights simply makes it quick and affordable to book flights from Seattle to Glasgow Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Seattle to Glasgow Intl with no change fees?
Certainly. Search results for flights to Glasgow Intl from Seattle 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 Seattle to Glasgow Intl become cheaper?
Yes, Cheapflights offers price alerts on Seattle to Glasgow Intl 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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