Cheap flights from Glasgow to Washington from £335

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
3 Sep — 10 Sep1
1 adult

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 29 August 2025.

Round-trip from

£498

One-way from

£335

Popular in

July

Cheapest in

February

Average price

£755
21/10-4/11
  • 21/10-4/11
  • 5 total stops
  • 39h 16m total
  • Glasgow to Washington
13/11
  • 13/11
  • 2 total stops
  • 33h 15m total
  • Glasgow to Washington
Highest demand for flights based on searches. 15% potential increase in price (£86 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in August 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 29 August 2025.

Tue 21/1007:35GLA - SEA
3 stops22h 51mMultiple Airlines
Tue 4/1115:10SEA - GLA
2 stops16h 25mMultiple Airlines
Deal found 27/8£498
Sun 12/1008:35GLA - SEA
1 stop17h 15mMultiple Airlines
Sun 19/1019:35SEA - GLA
1 stop17h 50mMultiple Airlines
Deal found 28/8£505
Tue 21/1009:15GLA - SEA
1 stop17h 05mBritish Airways
Tue 4/1118:50SEA - GLA
1 stop13h 00mBritish Airways
Deal found 27/8£519
Thu 9/1014:20GLA - SEA
1 stop11h 30mIcelandair
Sun 12/1019:00SEA - GLA
1 stop10h 25mIcelandair
Deal found 26/8£540
Sat 11/1007:35GLA - SEA
2 stops21h 05mMultiple Airlines
Sat 18/1015:45SEA - GLA
2 stops16h 25mMultiple Airlines
Deal found 27/8£563
Tue 21/1007:35GLA - PDX
3 stops23h 26mMultiple Airlines
Tue 4/1114:45PDX - GLA
1 stop11h 10mMultiple Airlines
Deal found 27/8£569
Tue 21/1006:00GLA - SEA
1 stop18h 05mVirgin Atlantic
Tue 4/1111:15SEA - GLA
2 stops21h 20mVirgin Atlantic
Deal found 27/8£576
Sun 12/1006:10GLA - SEA
1 stop13h 45mLufthansa
Sun 19/1019:15SEA - GLA
2 stops33h 05mLufthansa
Deal found 28/8£596
Tue 2/906:00GLA - SEA
1 stop13h 45mDelta
Sun 7/917:40SEA - GLA
1 stop14h 30mDelta
Deal found 26/8£602
Tue 9/908:55GLA - PDX
2 stops22h 57mDelta
Fri 19/913:25PDX - GLA
2 stops18h 45mDelta
Deal found 28/8£609
Mon 27/1013:20GLA - PDX
1 stop11h 40mIcelandair
Sat 1/1115:45PDX - GLA
1 stop11h 10mIcelandair
Deal found 27/8£614
Thu 4/906:15GLA - PDX
2 stops17h 55mDelta
Thu 18/911:08PDX - GLA
2 stops21h 02mDelta
Deal found 27/8£637

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 29 August 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

Tue 21/10

07:35-22:26

3 stops22h 51m

Seattle/Tacoma Intl

Tue 4/11

15:10-15:35

2 stops16h 25m

£498

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 12/10

08:35-17:50

1 stop17h 15m

Seattle/Tacoma Intl

Sun 19/10

19:35-21:25

1 stop17h 50m

£505

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 21/10

09:15-18:20

1 stop17h 05m

Seattle/Tacoma Intl

Tue 4/11

18:50-15:50

1 stop13h 00m

£519

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 9/10

14:20-17:50

1 stop11h 30m

Seattle/Tacoma Intl

Sun 12/10

19:00-13:25

1 stop10h 25m

£540

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 1/1

09:55-16:55

1 stop15h 00m

Seattle/Tacoma Intl

Thu 22/1

18:50-16:40

1 stop13h 50m

£549

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 11/10

07:35-20:40

2 stops21h 05m

Seattle/Tacoma Intl

Sat 18/10

15:45-16:10

2 stops16h 25m

£563

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Tue 21/10

07:35-23:01

3 stops23h 26m

Portland

Tue 4/11

14:45-09:55

1 stop11h 10m

£569

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Tue 9/9

08:55-23:52

2 stops22h 57m

Portland

Fri 19/9

13:25-16:10

2 stops18h 45m

£609

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Mon 27/10

13:20-18:00

1 stop11h 40m

Portland

Sat 1/11

15:45-09:55

1 stop11h 10m

£614

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Tue 9/9

07:35-23:01

3 stops23h 26m

Portland

Fri 19/9

19:40-06:50

3 stops27h 10m

£664

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 29 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, 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 29 August 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.

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 29 August 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.

Overall

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 11h 40m. British Airways provides one of the quickest options available for as low as £614. The distance between Glasgow and State of Washington is about 4560 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

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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.

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 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£429Average£597FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£437Average£658FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£455Average£685FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IcelandairCheapest£456Average£578FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£459Average£588FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£492Average£620FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£496Average£603FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£505Average£638FlexibilityNo cancel feeOn-time77%
Search Air France flights
Aer LingusCheapest£656Average£808FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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How does Cheapflights help users find flights from Glasgow to Washington?

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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?

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