Find flights
When to book
Airlines
FAQs

Cheap flights from Glasgow to Seattle from £292

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 27/8. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
16 Jul — 23 Jul1
1 adult

Cheapflights Tip: The best prices from Glasgow to Seattle/Tacoma Intl are usually found in February 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 11 July 2025.

Round-trip from

£511

One-way from

£292

Popular in

August

Cheapest in

February

Average price

£725
24/8-31/8
  • 24/8-31/8
  • 4 total stops
  • 55h 15m total
  • Glasgow to Seattle
Search Deals
27/8
  • 27/8
  • 3 total stops
  • 43h 50m total
  • Glasgow to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Glasgow to Seattle

Cheapest flights from Glasgow to Seattle
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 11 July 2025.

Sun 24/812:00GLA - SEA
2 stops33h 50mMultiple Airlines
Sun 31/816:00SEA - GLA
2 stops21h 25mMultiple Airlines
Deal found 10/7£511
Tue 5/814:20GLA - SEA
1 stop11h 30mIcelandair
Mon 11/823:30SEA - GLA
1 stop29h 55mIcelandair
Deal found 11/7£531
Tue 5/806:00GLA - SEA
1 stop17h 55mDelta
Mon 11/809:40SEA - GLA
2 stops22h 30mDelta
Deal found 11/7£592
Mon 28/713:30GLA - SEA
1 stop30h 05mKLM
Tue 12/813:55SEA - GLA
1 stop34h 30mKLM
Deal found 9/7£752
Tue 5/820:10GLA - SEA
1 stop29h 40mAer Lingus
Sun 10/800:46SEA - GLA
2 stops23h 19mAer Lingus
Deal found 11/7£820

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 11 July 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

Sun 24/8

12:00-13:50

2 stops33h 50m

Seattle/Tacoma Intl

Sun 31/8

16:00-21:25

2 stops21h 25m

£511

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 5/8

14:20-17:50

1 stop11h 30m

Seattle/Tacoma Intl

Mon 11/8

23:30-13:25

1 stop29h 55m

£531

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 1/1

20:20-16:55

1 stop28h 35m

Seattle/Tacoma Intl

Thu 22/1

13:40-17:50

2 stops20h 10m

£589

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 5/8

06:00-15:55

1 stop17h 55m

Seattle/Tacoma Intl

Mon 11/8

09:40-16:10

2 stops22h 30m

£592

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 1/1

08:55-20:02

2 stops19h 07m

Seattle/Tacoma Intl

Thu 22/1

10:35-12:55

2 stops18h 20m

£691

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 28/7

13:30-11:35

1 stop30h 05m

Seattle/Tacoma Intl

Tue 12/8

13:55-08:25

1 stop34h 30m

£752

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 5/8

20:10-17:50

1 stop29h 40m

Seattle/Tacoma Intl

Sun 10/8

00:46-08:05

2 stops23h 19m

£820

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 27/8

07:00-18:50

3 stops43h 50m

£292

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 12/10

17:20-17:50

1 stop32h 30m

£489

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 9/9

14:20-17:50

1 stop11h 30m

£553

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 11 results
1
2

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 27 June 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 11 July 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 9% 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 11 July 2025.
Get a feel of what it's like to fly with Delta, KLM, andAmerican Airlines 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.
Delta
8.0
Very Good
7,951 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Aer Lingus
7.1
Good
1,154 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Icelandair
7.0
Good
515 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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 10 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.

  • What are the cheapest airlines flying from Glasgow to Seattle round-trip?

    Cheapflights users have booked flights from Glasgow to Seattle round-trip from £531. Other airlines that can offer you cheap pricing are British Airways, from £589, and Delta, from £592. These flights start at 13% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Glasgow to Seattle one-way?

    One-way options have recently been found by users for as low as £489 on Aer Lingus. Other airlines that offer cheap prices include Icelandair from £553 and British Airways from £785 one-way.

  • Can I find deals for flights from Glasgow to Seattle that include hotel bookings?

    Yes. In addition to deals on Glasgow to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Glasgow to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow to Seattle.

  • 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.

See more FAQs

Travelling to a place near Glasgow?

Book flights to Glasgow if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Glasgow to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Edinburgh to Seattle flights
Glasgow Intl to Seattle flights
Edinburgh to Portland flights
Glasgow Intl to Portland flights
Edinburgh to Pasco flights

Top 10 airlines flying from Glasgow to Seattle

Discover the top 10 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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£342Average£606FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£435Average£615FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£435Average£611FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£448Average£559FlexibilityNo cancel feeOn-time77%
Search Air France flights
IcelandairCheapest£454Average£576FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£456Average£584FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£489Average£616FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£493Average£635FlexibilityNo cancel feeOn-time76%
Search Finnair flights
WestJetCheapest£518Average£610FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Aer LingusCheapest£653Average£805FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights