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Cheap flights from Seattle to Glasgow Intl Airport from C$ 621

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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
22 Apr — 29 Apr1
1 adult

Cheap 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 17 April 2025.

Round-trip from

C$ 940

One-way from

C$ 621

Popular in

June

Cheapest in

November

Average price

C$ 1,073
Icelandair
  • Icelandair
  • 9/9-17/9
  • 2 total stops
  • 21h 55m total
  • Seattle to Glasgow
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15/6
  • 15/6
  • 3 total stops
  • 38h 40m total
  • Seattle to Glasgow
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Highest demand for flights based on searches. 23% potential increase in price (C$ 522 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 117 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Seattle to Glasgow Intl

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 17 April 2025.

Tue 9/97:00 p.m.SEA - GLA
1 stop10h 25mIcelandair
Wed 17/92:20 p.m.GLA - SEA
1 stop11h 30mIcelandair
Deal found 16/4C$ 940
Sun 7/92:20 p.m.SEA - GLA
1 stop14h 05mLufthansa
Thu 18/96:10 a.m.GLA - SEA
2 stops24h 06mLufthansa
Deal found 16/4C$ 1,059
Sun 7/91:30 p.m.SEA - GLA
1 stop13h 00mBritish Airways
Thu 18/97:00 a.m.GLA - SEA
1 stop12h 35mBritish Airways
Deal found 16/4C$ 1,075
Wed 10/911:25 a.m.SEA - GLA
2 stops20h 45mDelta
Tue 23/91:30 p.m.GLA - SEA
1 stop30h 15mDelta
Deal found 17/4C$ 1,081
Sat 26/42:15 p.m.SEA - GLA
1 stop14h 05mMultiple Airlines
Sat 3/51:05 p.m.GLA - SEA
2 stops37h 28mMultiple Airlines
Deal found 17/4C$ 1,342
Tue 10/65:35 p.m.SEA - GLA
1 stop21h 35mKLM
Tue 24/64:55 p.m.GLA - SEA
1 stop31h 00mKLM
Deal found 17/4C$ 1,617

Cheapflights Fare Finder

Customize 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 629,999 searches. Data last updated 17 April 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

Tue 9/9

7:00 p.m.-1:25 p.m.

1 stop10h 25m

Glasgow Intl

Wed 17/9

2:20 p.m.-5:50 p.m.

1 stop11h 30m

C$ 940

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 7/9

2:20 p.m.-12:25 p.m.

1 stop14h 05m

Glasgow Intl

Thu 18/9

6:10 a.m.-10:16 p.m.

2 stops24h 06m

C$ 1,059

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 7/9

1:30 p.m.-10:30 a.m.

1 stop13h 00m

Glasgow Intl

Thu 18/9

7:00 a.m.-11:35 a.m.

1 stop12h 35m

C$ 1,075

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 10/9

11:25 a.m.-4:10 p.m.

2 stops20h 45m

Glasgow Intl

Tue 23/9

1:30 p.m.-11:45 a.m.

1 stop30h 15m

C$ 1,081

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 10/6

5:35 p.m.-11:10 p.m.

1 stop21h 35m

Glasgow Intl

Tue 24/6

4:55 p.m.-3:55 p.m.

1 stop31h 00m

C$ 1,617

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 15/6

11:30 p.m.-10:10 p.m.

3 stops38h 40m

C$ 621

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 15/6

1:30 p.m.-7:40 a.m.

1 stop34h 10m

C$ 1,048

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Mon 16/6

10:00 a.m.-12:20 p.m.

2 stops18h 20m

C$ 1,095

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/4

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 round-trip 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

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 round-trip flight from Seattle to Glasgow Intl. Price data was last updated on 11 April 2025.

Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Glasgow Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Glasgow Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of C$ 570). Flying from Seattle to Glasgow Intl Airport in December is currently the most expensive (average of C$ 977). 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 17 April 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Glasgow Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the morning.

Rainfall in Glasgow Intl by month

Plan your trip to Glasgow Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Glasgow Intl Airport ranges from 33.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. May is typically the driest time to visit Glasgow Intl Airport when rainfall is around 33.0 mm.

Temperature in Glasgow Intl by month

Plan your trip to Glasgow Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Glasgow Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 17 April 2025.
Delta
8.0
Very good
7,917 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Icelandair
7.0
Good
482 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Lufthansa
6.7
Okay
7,012 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,767 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    For a flight from Seattle to Glasgow Intl, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 18.4 km from the centre of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 outbound flights to Glasgow Intl per day. 0 airlines have flights to Glasgow Intl from Seattle/Tacoma Intl on a regular basis.

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

    Flying on Icelandair is currently your cheapest option to Glasgow Intl Airport, with prices starting at C$ 940. Additional round-trip tickets that might be worth considering are offered by Lufthansa and British Airways, with the lowest prices starting at C$ 1,059 and C$ 1,075, respectively. Icelandair is currently priced 23% below the average price you’ll pay for this route.

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

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

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

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

  • 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, February is the cheapest month in which you can book a flight from Seattle to Glasgow Intl Airport (average of C$ 570). Flying from Seattle to Glasgow Intl Airport in December is currently the most expensive (average of C$ 977). 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.

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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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