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Cheap flights from Glasgow to Washington from £422

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 23/5. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
10 Jan — 17 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Glasgow to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow to Washington
Explore the most affordable flight options available from Glasgow to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 December 2025.

Sun 14/1212:35GLA - SEA
2 stops16h 14mIcelandair
Fri 9/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 9/12£942
Sun 14/1212:35GLA - SEA
2 stops18h 10mMultiple Airlines
Fri 9/110:00SEA - GLA
2 stops15h 55mMultiple Airlines
Deal found 9/12£966
Sun 14/1210:20GLA - SEA
2 stops21h 05mBritish Airways
Fri 9/113:35SEA - GLA
1 stop15h 30mBritish Airways
Deal found 10/12£1,078
Thu 11/1208:20GLA - SEA
2 stops23h 05mMultiple Airlines
Thu 18/1214:50SEA - GLA
2 stops20h 50mMultiple Airlines
Deal found 10/12£1,095
Thu 11/1206:05GLA - SEA
1 stop13h 45mKLM
Thu 18/1215:05SEA - GLA
1 stop17h 35mKLM
Deal found 10/12£1,425

Find flight deals from Glasgow to Washington

Keep the following information in mind while searching for Glasgow to Washington flight deals. Data was last updated 11 December 2025.

Round-trip from

£565

One-way from

£422

Popular in

July

Cheapest in

January

Average price

£743
Icelandair
  • Icelandair
  • 14/1-28/1
  • 2 total stops
  • 23h 45m total
  • Glasgow to Washington
Search Deals
WestJet
  • WestJet
  • 23/5
  • 2 total stops
  • 33h 30m total
  • Glasgow to Washington
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£97 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

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

Fly from

Glasgow

Fly to

Washington

Route

Depart

Return

Price

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 17/1

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

Sat 31/1

14:35-09:55

1 stop11h 20m

£565

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 12/2

11:15-17:00

1 stop13h 45m

Seattle/Tacoma Intl

Thu 26/2

14:35-09:55

1 stop11h 20m

£565

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 14/1

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

Wed 28/1

14:35-09:55

1 stop11h 20m

£565

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 9/2

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

Mon 23/2

14:35-09:55

1 stop11h 20m

£565

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 2/2

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

Mon 16/2

14:35-09:55

1 stop11h 20m

£565

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 22/1

11:15-17:00

1 stop13h 45m

Seattle/Tacoma Intl

Thu 5/2

14:35-09:55

1 stop11h 20m

£565

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 28/1

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

Wed 11/2

14:35-09:55

1 stop11h 20m

£565

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 24/1

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

Sat 7/2

14:35-09:55

1 stop11h 20m

£565

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 8/2

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

Sun 22/2

14:35-09:55

1 stop11h 20m

£565

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 15/1

11:15-17:00

1 stop13h 45m

Seattle/Tacoma Intl

Thu 29/1

14:35-09:55

1 stop11h 20m

£565

Flights are sorted by cheapest return flights first.

Deals found on 8/12

Showing 1-10 of 28 results
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Best time to book a flight from Glasgow to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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 Washington

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

Currently, March is the cheapest month in which you can book a flight from Glasgow to State of Washington (average of £363). Flying from Glasgow to State of Washington in December is currently the most expensive (average of £598). 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 WA?

Find hourly flight availability from Glasgow to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 December 2025.

When flying from Glasgow to State of Washington, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 25% versus a flight in the afternoon.

How much does it cost for a return flight from Glasgow to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated 11 December 2025.
Read reviews from past customers who have flown with KLM, Aer Lingus, andIcelandair from Glasgow to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,432 reviews
Check prices

Overall

7.7

Crew

8.3

Boarding

7.8

Food

7.2

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,432 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Overall

7.7

Crew

8.3

Boarding

7.8

Food

7.2

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Aer Lingus
7.2
Good
1,392 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Overall

7.7

Crew

8.3

Boarding

7.8

Food

7.2

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Icelandair
7.0
Good
589 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Overall

7.7

Crew

8.3

Boarding

7.8

Food

7.2

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,626 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Overall

7.7

Crew

8.3

Boarding

7.8

Food

7.2

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,573 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Overall

7.7

Crew

8.3

Boarding

7.8

Food

7.2

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

Find useful and relevant information for your journey from Glasgow to Washington. 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 Glasgow to State of Washington?

    A quick flight from Glasgow to State of Washington can take about 12h 25m. Icelandair provides one of the quickest options available for as low as £565. The distance between Glasgow and State of Washington is about 4445 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    When deciding which route to take from Glasgow to State of Washington consider Glasgow Intl - Seattle/Tacoma Intl, Glasgow Intl - Portland or Glasgow Intl - Yakima Air Terminal as they are the most popular.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Glasgow to State of Washington (average of £363). Flying from Glasgow to State of Washington in December is currently the most expensive (average of £598). 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

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Alternative routes for Glasgow to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Glasgow to Washington

Discover the top 9 airlines that operate flights from Glasgow to Washington. 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 December 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£422Average£529FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£426Average£578FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£443Average£661FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£461Average£717FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£465Average£612FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£466Average£605FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£498Average£684FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£512Average£616FlexibilityNo cancel feeOn-time77%
Search Air France flights
Aer LingusCheapest£650Average£807FlexibilityNo 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 Washington?

Deals for Glasgow to Washington flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Washington from Glasgow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Glasgow to Washington with no change fees?

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

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

Yes! Start tracking prices for Glasgow to Washington flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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