Cheap flights from Glasgow to Washington from £471

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Glasgow to Washington

Keep the following information in mind while searching for Glasgow to Washington flight deals. Data was last updated 18 September 2025.

Round-trip from

£484

Popular in

July

Cheapest in

January

Average price

£523
Icelandair
  • Icelandair
  • 31/10-7/11
  • 2 total stops
  • 23h 45m total
  • Glasgow to Washington
Highest demand for flights based on searches. 16% potential increase in price (£89 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Glasgow to Washington

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 18 September 2025.

Fri 26/914:20GLA - SEA
1 stop14h 20mIcelandair
Mon 29/915:45SEA - GLA
1 stop13h 40mIcelandair
Deal found 16/9£471
Fri 31/1012:35GLA - SEA
1 stop12h 25mIcelandair
Fri 7/1114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 16/9£484
Sat 1/1112:35GLA - SEA
1 stop12h 25mIcelandair
Sat 8/1114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 17/9£484
Fri 31/1008:25GLA - SEA
1 stop17h 55mMultiple Airlines
Fri 7/1120:05SEA - GLA
1 stop11h 55mMultiple Airlines
Deal found 16/9£510
Sat 1/1107:20GLA - SEA
2 stops17h 40mMultiple Airlines
Sat 8/1114:35SEA - GLA
2 stops21h 20mMultiple Airlines
Deal found 17/9£532
Mon 6/1006:00GLA - PDX
1 stop13h 20mDelta
Mon 20/1015:19PDX - GLA
2 stops16h 51mDelta
Deal found 16/9£566
Fri 31/1017:25GLA - SEA
1 stop26h 20mKLM
Fri 7/1109:29SEA - GLA
2 stops16h 26mKLM
Deal found 16/9£576
Fri 31/1006:05GLA - SEA
2 stops19h 31mDelta
Fri 7/1109:29SEA - GLA
2 stops16h 26mDelta
Deal found 16/9£580
Sat 1/1106:05GLA - SEA
1 stop13h 40mDelta
Sat 8/1106:00SEA - GLA
2 stops20h 05mDelta
Deal found 17/9£583
Fri 31/1010:40GLA - SEA
2 stops19h 33mFinnair
Fri 7/1111:42SEA - GLA
2 stops17h 23mFinnair
Deal found 16/9£593
Fri 31/1006:05GLA - PDX
1 stop13h 20mKLM
Fri 7/1113:25PDX - GLA
1 stop19h 10mKLM
Deal found 15/9£624
Wed 10/1208:55GLA - SEA
2 stops33h 45mMultiple Airlines
Sat 3/114:35SEA - GLA
1 stop11h 20mMultiple Airlines
Deal found 16/9£651

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 18 September 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

Fri 31/10

12:35-18:00

1 stop12h 25m

Seattle/Tacoma Intl

Fri 7/11

14:35-09:55

1 stop11h 20m

£484

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 1/11

12:35-18:00

1 stop12h 25m

Seattle/Tacoma Intl

Sat 8/11

14:35-09:55

1 stop11h 20m

£484

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 5/3

12:35-17:00

1 stop12h 25m

Seattle/Tacoma Intl

Mon 9/3

15:35-09:55

1 stop11h 20m

£509

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 31/10

08:25-19:20

1 stop17h 55m

Seattle/Tacoma Intl

Fri 7/11

20:05-16:00

1 stop11h 55m

£510

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 1/11

07:20-18:00

2 stops17h 40m

Seattle/Tacoma Intl

Sat 8/11

14:35-19:55

2 stops21h 20m

£532

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 5/3

08:40-16:55

1 stop16h 15m

Seattle/Tacoma Intl

Mon 9/3

13:48-18:15

2 stops21h 27m

£541

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Mon 6/10

06:00-11:20

1 stop13h 20m

Portland

Mon 20/10

13:15-16:10

1 stop18h 55m

£566

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Thu 5/3

12:45-15:55

1 stop35h 10m

Portland

Mon 9/3

06:00-13:05

2 stops24h 05m

£596

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Fri 31/10

06:05-12:25

1 stop13h 20m

Portland

Fri 7/11

13:25-16:35

1 stop19h 10m

£624

GlasgowYakima

GLA - YKM

GLAYKM

Glasgow Intl

Thu 13/11

06:35-00:09

2 stops25h 34m

Yakima Air Terminal

Mon 17/11

06:15-16:35

2 stops26h 20m

£738

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 17 results
1
2

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, January is the cheapest month in which you can book a flight from Glasgow to State of Washington (average of £622). Flying from Glasgow to State of Washington 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 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 18 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Glasgow to State of Washington as you normally would.

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 18 September 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.

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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 £484. 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?

  • 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, January is the cheapest month in which you can book a flight from Glasgow to State of Washington (average of £622). Flying from Glasgow to State of Washington 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

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 Washington

See prices for flight routes from nearby airports that may be better suited for you.

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 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£424Average£586FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£433Average£647FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£450Average£700FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£454Average£597FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£459Average£592FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£487Average£613FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£491Average£597FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£500Average£632FlexibilityNo cancel feeOn-time77%
Search Air France flights
Aer LingusCheapest£650Average£804FlexibilityNo 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.

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.