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Cheap flights from Glasgow Intl Airport to Seattle from £312

GLA — SEA
16 Nov — 23 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Glasgow Intl to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow Intl to Seattle

Wed 11/1108:25 -
2 stops24h 10m
Wed 18/1123:29 -
2 stops28h 06m
Deal found 14/10£506
Wed 16/1208:25 -
2 stops20h 06m
Sat 23/106:06 -
2 stops26h 39m
Deal found 15/10£526
Mon 23/1107:50 -
2 stops17h 10m
Sun 6/1214:35 -
2 stops23h 40m
Deal found 17/10£538
Sat 7/1109:40 -
1 stop15h 20m
Sat 14/1118:45 -
1 stop15h 30m
Deal found 14/10£554
Sat 19/1213:15 -
2 stops18h 27m
Sat 23/110:17 -
2 stops22h 28m
Deal found 15/10£559
Wed 11/1120:15 -
1 stop23h 10m
Wed 18/1123:29 -
2 stops28h 06m
Deal found 14/10£620
Mon 23/1111:55 -
1 stop13h 05m
Sun 6/1214:35 -
1 stop11h 20m
Deal found 17/10£622
Thu 12/1111:55 -
1 stop13h 05m
Mon 16/1114:35 -
1 stop11h 20m
Deal found 12/10£629
Tue 1/1211:55 -
1 stop13h 05m
Tue 8/1214:35 -
1 stop11h 20m
Deal found 17/10£638

Find flight deals from Glasgow Intl to Seattle

Round-trip from

£506

One-way from

£312

Popular in

May

Cheapest in

January

Average price

£629
Aer Lingus
  • Aer Lingus
  • 11/11-18/11
  • 4 total stops
  • 52h 16m total
  • Glasgow to Seattle
Search Deals
Icelandair
  • Icelandair
  • 25/1-31/12
  • 1 total stop
  • 13h 25m total
  • Glasgow to Seattle
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Glasgow Intl Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Wed 27/1

11:35-17:00

1 stop13h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£312

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sun 24/1

10:10-16:50

1 stop14h 40m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£357

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 5/12

08:35-17:00

3 stops40h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£377

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 12/12

08:25-00:47

2 stops24h 22m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£388
Fastest return journey

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 12/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£433

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 5/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£445

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 5/12

09:25-16:50

1 stop15h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£446

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 12/12

05:40-17:01

2 stops19h 21m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£471

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Thu 12/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Mon 16/11

14:35-09:55

1 stop11h 20m

£649

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sun 8/11

06:00-16:45

2 stops18h 45m

Seattle/Tacoma Intl

Sat 14/11

09:45-12:45

2 stops19h 00m

£687

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Glasgow Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Glasgow Intl with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Glasgow Intl Airport to Seattle

How much does it cost for a return flight from Glasgow Intl Airport to Seattle?

Airfare is below average for this route at the moment.

Glasgow Intl Airport to Seattle flights typically cost between £622 and £726 in November.
The cheapest return price found within the last 5 days was £506 on Aer Lingus (11 Nov–18 Nov).

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Aer Lingus,Icelandair, andBritish Airways from Glasgow Intl Airport 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.
Aer Lingus
7.3
Good
1,842 reviews
Check prices

Overall

7.3

Boarding

7.5

Comfort

7.2

Crew

8.1

Food

6.7

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Aer Lingus
7.3
Good
1,842 reviews
Aer Lingus
7.3
Good
1,842 reviews
Check prices

Overall

7.3

Boarding

7.5

Comfort

7.2

Crew

8.1

Food

6.7

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Icelandair
6.9
Okay
758 reviews
Aer Lingus
7.3
Good
1,842 reviews
Check prices

Overall

7.3

Boarding

7.5

Comfort

7.2

Crew

8.1

Food

6.7

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
British Airways
6.7
Okay
8,264 reviews
Aer Lingus
7.3
Good
1,842 reviews
Check prices

Overall

7.3

Boarding

7.5

Comfort

7.2

Crew

8.1

Food

6.7

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Related info for your journey

  • What airport do you fly into for flights to Seattle from Glasgow Intl?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from Glasgow Intl. Booking flights from Glasgow Intl to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 0 daily inbound flights from Glasgow Intl from 3 different airlines.

  • How long is the flight from Glasgow Intl Airport to Seattle?

    A quick flight from Glasgow Intl Airport to Seattle can take about 12h 50m. Icelandair provides one of the quickest options available for as low as £700. Airlines will cover a distance of 4445 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Our cheapest airline available from Glasgow Intl Airport to Seattle is Icelandair. Our recent data shows that you can find tickets from as low as £445 on this airline. Additional options worth looking into are British Airways and Aer Lingus, starting at £511 and £608 round-trip. Users have found that Icelandair is 31% cheaper than the other options available to this destination.

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

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

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

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

  • Can I find deals for business class flights from Glasgow Intl to Seattle?

    Yes. Cheapflights offers flight deals from Glasgow Intl 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.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Glasgow Intl to Seattle

Glasgow Intl to Portland flights

Top 3 airlines flying from Glasgow Intl to Seattle

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£445Average£634FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£511Average£679FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£608Average£766FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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How does Cheapflights help users find flights from Glasgow Intl to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Glasgow Intl to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Glasgow Intl to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Glasgow Intl to Seattle 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 Glasgow Intl to Seattle with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Glasgow Intl to Seattle, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Glasgow Intl to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Glasgow Intl 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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