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Cheap flights from Glasgow to Washington from £321

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
11 Jul — 18 Jul1
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 June 2026.

Sun 20/912:00
GLA
-
SEA
1 stop13h 10m
Aer Lingus
Sat 3/1019:10
SEA
-
GLA
1 stop12h 15m
Aer Lingus
Deal found 7/6£501
Tue 14/712:00
GLA
-
SEA
1 stop13h 10m
Aer Lingus
Tue 21/719:10
SEA
-
GLA
1 stop12h 15m
Aer Lingus
Deal found 8/6£510
Wed 30/914:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Sun 11/1015:40
SEA
-
GLA
1 stop13h 45m
Icelandair
Deal found 6/6£520
Wed 24/622:35
GLA
-
SEA
3 stops30h 25m
Multiple Airlines
Mon 17/815:40
SEA
-
GLA
3 stops21h 15m
Multiple Airlines
Deal found 10/6£524
Sun 6/914:20
GLA
-
SEA
1 stop29h 25m
Icelandair
Sun 20/919:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Deal found 10/6£526
Sun 20/912:00
GLA
-
SEA
1 stop13h 10m
British Airways
Sun 4/1013:30
SEA
-
GLA
1 stop14h 00m
British Airways
Deal found 7/6£531
Sat 19/906:35
GLA
-
SEA
1 stop13h 00m
British Airways
Sat 3/1013:30
SEA
-
GLA
1 stop13h 20m
British Airways
Deal found 7/6£535
Wed 17/621:25
GLA
-
SEA
1 stop27h 45m
British Airways
Wed 22/720:20
SEA
-
GLA
1 stop14h 25m
British Airways
Deal found 6/6£543
Wed 24/614:20
GLA
-
SEA
1 stop11h 35m
Icelandair
Mon 17/815:40
SEA
-
GLA
1 stop13h 45m
Icelandair
Deal found 10/6£554
Tue 6/1012:00
GLA
-
SEA
1 stop13h 10m
British Airways
Tue 27/1014:12
SEA
-
GLA
2 stops18h 38m
British Airways
Deal found 8/6£557
Wed 16/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Wed 30/915:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Deal found 10/6£648
Fri 4/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Mon 5/1015:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Deal found 5/6£677

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 June 2026.

Round-trip from

£501

One-way from

£321

Popular in

August

Cheapest in

January

Average price

£684
Aer Lingus
  • Aer Lingus
  • 20/9-3/10
  • 2 total stops
  • 25h 25m total
  • Glasgow to Washington
Search Deals
25/8
  • 25/8
  • 3 total stops
  • 58h 40m total
  • Glasgow to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
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 June 2026.
Use the filters below to find and compare flights from Glasgow to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 30/9

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

Sun 11/10

15:40-13:25

1 stop13h 45m

£520
Fastest return journey

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 17/10

06:35-11:35

1 stop13h 00m

Seattle/Tacoma Intl

Tue 20/10

13:30-09:40

1 stop12h 10m

£561

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 14/7

14:00-19:06

2 stops37h 06m

Seattle/Tacoma Intl

Tue 21/7

05:00-10:10

2 stops21h 10m

£576

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 20/9

14:00-09:36

2 stops27h 36m

Seattle/Tacoma Intl

Sun 4/10

05:00-10:10

2 stops21h 10m

£577

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 20/9

14:00-09:36

2 stops27h 36m

Seattle/Tacoma Intl

Sat 3/10

23:14-10:10

2 stops26h 56m

£577

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 30/9

14:00-11:27

2 stops29h 27m

Seattle/Tacoma Intl

Sun 11/10

05:00-10:10

2 stops21h 10m

£579

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 30/9

14:00-09:27

2 stops27h 27m

Portland

Sun 4/10

05:00-10:10

2 stops21h 10m

£726

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Fri 4/9

14:00-22:03

1 stop16h 03m

Portland

Fri 2/10

22:33-10:10

1 stop27h 37m

£729

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Sun 6/9

14:00-22:03

1 stop16h 03m

Portland

Wed 7/10

22:33-10:10

1 stop27h 37m

£729

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Sat 5/9

14:00-15:03

2 stops33h 03m

Portland

Sun 4/10

22:33-10:10

1 stop27h 37m

£729

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 33 resultsSorted by cheapest first
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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 £431). Flying from Glasgow to State of Washington in December is currently the most expensive (average of £589). 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.

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 June 2026.
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
7.8
Good
1,527 reviews
Check prices

Entertainment

7.2

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,527 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Entertainment

7.2

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Aer Lingus
7.3
Good
1,603 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Entertainment

7.2

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Icelandair
7.0
Good
672 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Entertainment

7.2

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
8,042 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Entertainment

7.2

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 35m. Icelandair provides one of the quickest options available for as low as £520. 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 £431). Flying from Glasgow to State of Washington in December is currently the most expensive (average of £589). 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 7 airlines flying from Glasgow to Washington

Discover the top 7 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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£451Average£605FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£490Average£655FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£499Average£615FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£510Average£625FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£556Average£708FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£599Average£801FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapest£631Average£788FlexibilityNo 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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