Cheap flights from Washington to Glasgow Intl Airport from £274

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GLA
9 Nov — 16 Nov1
1 adult
1 adult, Economy

Find flight deals from Washington to Glasgow Intl

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Glasgow Intl
Explore the most affordable flight options available from Washington to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2025.

Sun 2/1114:35SEA - GLA
1 stop11h 20mIcelandair
Tue 18/1112:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 9/10£377
Sat 1/1115:45PDX - GLA
1 stop11h 10mIcelandair
Fri 14/1112:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 9/10£381
Sat 6/1214:35SEA - GLA
1 stop11h 20mIcelandair
Wed 10/1212:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 10/10£399
Mon 10/1114:45PDX - GLA
1 stop11h 10mIcelandair
Mon 17/1112:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 7/10£400
Thu 30/1015:35SEA - GLA
1 stop11h 20mIcelandair
Sat 8/1112:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 10/10£425
Thu 6/1114:45PDX - GLA
1 stop11h 10mIcelandair
Sun 14/1212:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 10/10£456
Mon 8/1214:45PDX - GLA
1 stop11h 10mIcelandair
Sun 14/1212:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 8/10£457
Mon 10/1114:45PDX - GLA
1 stop11h 10mIcelandair
Sun 16/1112:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 8/10£481
Sun 23/1110:05SEA - GLA
3 stops26h 00mMultiple Airlines
Sun 30/1122:15GLA - SEA
3 stops29h 01mMultiple Airlines
Deal found 9/10£483
Wed 5/1117:45PDX - GLA
1 stop14h 05mBritish Airways
Wed 12/1105:55GLA - PDX
1 stop18h 00mBritish Airways
Deal found 7/10£488
Tue 2/1210:48PDX - GLA
2 stops15h 57mMultiple Airlines
Tue 16/1206:25GLA - PDX
2 stops20h 37mMultiple Airlines
Deal found 9/10£495
Wed 5/1113:25PDX - GLA
1 stop15h 20mVirgin Atlantic
Wed 12/1106:05GLA - PDX
1 stop13h 20mVirgin Atlantic
Deal found 7/10£496

Cheap flight deals from Washington to Glasgow Intl

Keep the following information in mind while searching for Washington to Glasgow Intl flight deals. Data was last updated 10 October 2025.

Round-trip from

£377

One-way from

£274

Popular in

July

Cheapest in

November

Average price

£541
Icelandair
  • Icelandair
  • 2/11-18/11
  • 2 total stops
  • 23h 45m total
  • Washington to Glasgow
Icelandair
  • Icelandair
  • 10/3
  • 1 total stop
  • 11h 10m total
  • Washington to Glasgow
Highest demand for flights based on searches. 19% potential increase in price (£115 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Average for round-trip flights in October 2025

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington 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 10 October 2025.
Use the filters below to find and compare flights from Washington to Glasgow Intl Airport that are best for you.

Fly from

Washington

Fly to

Glasgow Intl

Route

Depart

Return

Price

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sun 1/3

14:35-09:55

1 stop11h 20m

Glasgow Intl

Thu 5/3

12:35-17:00

1 stop12h 25m

£412

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 21/3

15:35-09:55

1 stop11h 20m

Glasgow Intl

Sat 28/3

13:20-18:00

1 stop11h 40m

£437

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Tue 7/4

19:00-13:25

1 stop10h 25m

Glasgow Intl

Wed 22/4

14:20-17:50

1 stop11h 30m

£449

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 22/10

13:15-16:10

1 stop18h 55m

Glasgow Intl

Wed 29/10

06:05-12:25

1 stop13h 20m

£454

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sat 4/4

15:45-13:25

1 stop13h 40m

Glasgow Intl

Fri 10/4

14:20-18:00

1 stop11h 40m

£478

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sat 4/4

15:45-13:25

1 stop13h 40m

Glasgow Intl

Sun 12/4

14:20-18:00

1 stop11h 40m

£478

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 7/2

18:50-17:10

1 stop14h 20m

Glasgow Intl

Sat 14/2

09:35-16:55

1 stop15h 20m

£487

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 21/2

18:50-17:10

1 stop14h 20m

Glasgow Intl

Fri 27/2

20:25-11:30

1 stop23h 05m

£488

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Sat 7/2

09:54-10:45

2 stops16h 51m

Glasgow Intl

Sat 14/2

10:30-23:07

2 stops20h 37m

£502

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Thu 19/2

07:20-10:45

2 stops19h 25m

Glasgow Intl

Sat 28/2

08:40-20:24

2 stops19h 44m

£502

Flights are sorted by cheapest return flights first.

Deals found on 9/10

Showing 1-10 of 42 results
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Best time to book a flight from Washington to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Washington 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 Washington to Glasgow Intl Airport

What is the cheapest month to book a flight from State of Washington to Glasgow Intl Airport?

Currently, March is the cheapest month in which you can book a flight from State of Washington to Glasgow Intl Airport (average of £408). Flying from State of Washington to Glasgow Intl Airport in July is currently the most expensive (average of £616). 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 WA to GLA?

Find hourly flight availability from Washington 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 10 October 2025.

It’s optimal to fly from State of Washington to Glasgow Intl Airport in the morning. By choosing this option you can save up to 59% on the cost of your flight, compared to a flight in the evening.

Related info for your journey

Find useful and relevant information for your journey from Washington to Glasgow Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from State of Washington to Glasgow Intl Airport?

    Departing from State of Washington to Glasgow Intl Airport will take you 11h 20m. State of Washington and Glasgow Intl Airport are separated by a distance of 4445 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Glasgow Intl Airport one-way?

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as £306. However, be on the lookout for offers from American Airlines and Icelandair, as they are both options that can get you from State of Washington to Glasgow Intl Airport for a low price.

  • What are the most popular routes from State of Washington to Glasgow Intl Airport?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Glasgow Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from State of Washington to Glasgow Intl Airport (average of £408). Flying from State of Washington to Glasgow Intl Airport in July is currently the most expensive (average of £616). 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 Intl Airport?

Book flights to Glasgow Intl Airport if you plan to visit one of these locations
Paisley
Dunoon
Largs
Renfrew
Kilmarnock
Dumbarton
Clydebank
East Kilbride
Arrochar
Inveraray
Rothesay
Ballachulish
Alexandria
Tarbert
Balloch

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Top airline flying from Washington to Glasgow Intl

Discover the top airline that operate flights from Washington 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 10 October 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£420Average£495FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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