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Cheap flights from Glasgow to Washington from £297

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
15 feb — 22 feb1
1 adult
1 adult, Economy, 0 bags

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 16 gennaio 2026.

Round-trip from

£442

One-way from

£297

Popular in

July

Cheapest in

January

Average price

£489
Icelandair
  • Icelandair
  • 16/4-22/4
  • 2 total stops
  • 22h 00m total
  • Glasgow to Washington
Search Deals
1/3
  • 1/3
  • 2 total stops
  • 49h 34m 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 (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 16 gennaio 2026.

gio 16/414:20
GLA
-
SEA
1 stop11h 35m
Icelandair
mer 22/419:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Deal found 14/1£442
mer 22/414:20
GLA
-
SEA
1 stop14h 20m
Icelandair
mer 29/419:00
SEA
-
GLA
1 stop10h 25m
Icelandair
Deal found 14/1£444
gio 16/409:05
GLA
-
SEA
2 stops19h 35m
Multiple Airlines
mer 22/415:40
SEA
-
GLA
2 stops21h 35m
Multiple Airlines
Deal found 14/1£451
gio 12/211:15
GLA
-
SEA
1 stop13h 45m
Icelandair
lun 16/214:35
SEA
-
GLA
1 stop11h 20m
Icelandair
Deal found 14/1£458
ven 1/514:20
GLA
-
SEA
1 stop11h 35m
Icelandair
mar 5/515:40
SEA
-
GLA
1 stop13h 45m
Icelandair
Deal found 14/1£474
mer 22/420:15
GLA
-
SEA
2 stops50h 04m
Multiple Airlines
mer 29/419:00
SEA
-
GLA
1 stop10h 25m
Multiple Airlines
Deal found 14/1£481
mer 3/613:20
GLA
-
SEA
1 stop13h 05m
British Airways
mer 10/613:35
SEA
-
GLA
1 stop14h 55m
British Airways
Deal found 14/1£497
ven 23/106:05
GLA
-
SEA
1 stop13h 45m
Air France
lun 26/108:00
SEA
-
GLA
2 stops17h 55m
Air France
Deal found 15/1£503
gio 12/217:20
GLA
-
SEA
1 stop26h 20m
KLM
lun 16/221:55
SEA
-
GLA
2 stops28h 00m
KLM
Deal found 14/1£508
sab 28/206:00
GLA
-
SEA
2 stops22h 56m
Lufthansa
sab 7/314:00
SEA
-
GLA
1 stop14h 05m
Lufthansa
Deal found 14/1£510
mer 16/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
mer 23/915:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Deal found 15/1£576
mar 15/907:10
GLA
-
PDX
2 stops37h 56m
Multiple Airlines
mer 30/915:30
PDX
-
GLA
1 stop13h 55m
Multiple Airlines
Deal found 15/1£587

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 16 gennaio 2026.
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

gio 16/4

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

mer 22/4

19:00-13:25

1 stop10h 25m

£442

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

mer 22/4

14:20-20:40

1 stop14h 20m

Seattle/Tacoma Intl

mer 29/4

19:00-13:25

1 stop10h 25m

£444

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

gio 16/4

09:05-20:40

2 stops19h 35m

Seattle/Tacoma Intl

mer 22/4

15:40-21:15

2 stops21h 35m

£451

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

gio 12/2

11:15-17:00

1 stop13h 45m

Seattle/Tacoma Intl

lun 16/2

14:35-09:55

1 stop11h 20m

£458

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

ven 1/5

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

mar 5/5

19:00-13:25

1 stop10h 25m

£475

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

mer 22/4

20:15-14:19

2 stops50h 04m

Seattle/Tacoma Intl

mer 29/4

19:00-13:25

1 stop10h 25m

£481

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

mer 3/6

13:20-18:25

1 stop13h 05m

Seattle/Tacoma Intl

mer 10/6

13:35-12:30

1 stop14h 55m

£497

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

gio 12/2

17:20-11:40

1 stop26h 20m

Seattle/Tacoma Intl

lun 16/2

21:55-09:55

2 stops28h 00m

£508

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

sab 28/2

06:00-20:56

2 stops22h 56m

Seattle/Tacoma Intl

sab 7/3

14:00-12:05

1 stop14h 05m

£510

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

gio 12/2

17:20-14:33

2 stops29h 13m

Seattle/Tacoma Intl

lun 16/2

08:00-09:55

2 stops17h 55m

£525

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 34 results
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2
3
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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 £361). Flying from Glasgow to State of Washington in December is currently the most expensive (average of £593). 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 16 gennaio 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
7.7
Good
1,440 reviews
Check prices

Overall

7.7

Food

7.2

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,440 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Overall

7.7

Food

7.2

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Aer Lingus
7.2
Good
1,435 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Overall

7.7

Food

7.2

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Icelandair
7.1
Good
596 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Overall

7.7

Food

7.2

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,718 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Overall

7.7

Food

7.2

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,680 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Overall

7.7

Food

7.2

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 £442. 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 £361). Flying from Glasgow to State of Washington in December is currently the most expensive (average of £593). 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 8 airlines flying from Glasgow to Washington

Discover the top 8 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 16 gennaio 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£440Average£577FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£456Average£651FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£458Average£713FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IcelandairCheapest£460Average£601FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£462Average£609FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£496Average£663FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£509Average£612FlexibilityNo cancel feeOn-time77%
Search Air France flights
Aer LingusCheapest£647Average£803FlexibilityNo 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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