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$475+ Cheap flights from Glasgow Intl (GLA) to Washington

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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Glasgow Intl to Washington

Keep the following information in mind while searching for Glasgow Intl to Washington flight deals. Data was last updated October 30, 2025.

Round-trip from

$773
(Icelandair)

One-way from

$475
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$741
From Glasgow Intl to Washington
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One-way flight from Glasgow Intl to Washington
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Highest demand for flights based on searches. 16% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Glasgow Intl to Washington

Cheapest flights from Glasgow Intl to Washington
Explore the most affordable flight options available from Glasgow Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This TravelUp deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:20 pmGLA - SEA
1 stop26h 25mKLM
Thu 12/43:05 pmSEA - GLA
1 stop13h 40mKLM
Deal found 10/30$814
This Netflights deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:30 amGLA - SEA
1 stop13h 25mBritish Airways
Thu 12/46:50 pmSEA - GLA
1 stop16h 50mBritish Airways
Deal found 10/30$835
This Mytrip deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:20 amGLA - SEA
2 stops16h 40mMultiple Airlines
Thu 12/42:35 pmSEA - GLA
2 stops17h 05mMultiple Airlines
Deal found 10/30$838
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:05 amGLA - SEA
1 stop13h 45mDelta
Mon 12/1511:30 amSEA - GLA
2 stops21h 05mDelta
Deal found 10/29$866
This ChecknFly deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:30 amGLA - SEA
1 stop32h 00mFinnair
Wed 12/312:38 amSEA - GLA
2 stops26h 07mFinnair
Deal found 10/30$877
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:35 pmGLA - SEA
1 stop12h 25mIcelandair
Mon 12/152:35 pmSEA - GLA
1 stop11h 20mIcelandair
Deal found 10/29$903
This Cheapflightsfares deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2610:55 amGLA - PDX
1 stop13h 00mMultiple Airlines
Wed 12/35:45 pmPDX - GLA
1 stop12h 30mMultiple Airlines
Deal found 10/27$960
This oojo deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:00 pmGLA - SEA
2 stops31h 30mAer Lingus
Wed 12/312:38 amSEA - GLA
2 stops23h 12mAer Lingus
Deal found 10/30$1,044
This Ovago deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:10 pmGLA - SEA
1 stop30h 10mAer Lingus
Sun 12/1412:38 amSEA - GLA
2 stops23h 12mAer Lingus
Deal found 10/29$1,049
This Cheapflightsfares deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2611:40 amGLA - PDX
2 stops19h 19mBritish Airways
Wed 12/34:38 pmPDX - GLA
2 stops15h 12mBritish Airways
Deal found 10/27$1,139
This Expedia deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/134:30 pmGLA - PDX
2 stops48h 10mMultiple Airlines
Sat 12/205:50 pmPDX - GLA
2 stops41h 50mMultiple Airlines
Deal found 10/29$1,290
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1811:30 amGLA - PDX
2 stops19h 36mMultiple Airlines
Thu 1/812:35 pmPDX - GLA
2 stops16h 30mMultiple Airlines
Deal found 10/28$1,673

Cheapflights Fare Finder

 
Customize your flight search to find flights from Glasgow Intl 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 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Glasgow Intl Airport to Washington that are best for you.

Fly from

Glasgow Intl

Fly to

Washington

Route

Depart

Return

Price

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 1/12

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Wed 3/25

3:35 pm-9:55 am

1 stop11h 20m

$773

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 1/12

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Thu 3/26

3:35 pm-12:25 pm

1 stop13h 50m

$773

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 1/11

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Wed 3/25

3:35 pm-9:55 am

1 stop11h 20m

$806

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 3/5

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Mon 3/9

3:35 pm-9:55 am

1 stop11h 20m

$806

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 1/12

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Sat 3/28

7:00 pm-1:25 pm

1 stop10h 25m

$806

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 1/12

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Sun 3/29

3:45 pm-1:25 pm

1 stop13h 40m

$806

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 1/11

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Mon 3/30

7:00 pm-1:25 pm

1 stop10h 25m

$806

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 1/12

2:00 pm-4:55 pm

1 stop34h 55m

Seattle/Tacoma Intl

Tue 3/31

7:00 am-9:40 am

2 stops18h 40m

$807

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 1/13

2:00 pm-4:55 pm

1 stop34h 55m

Seattle/Tacoma Intl

Tue 3/31

1:48 pm-4:45 pm

2 stops18h 57m

$807

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 1/11

6:05 pm-4:55 pm

1 stop30h 50m

Seattle/Tacoma Intl

Mon 3/30

1:48 pm-4:45 pm

2 stops18h 57m

$811

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 29 results
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Best time to book a flight from Glasgow Intl to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Glasgow Intl with our price prediction graph.
Estimated round-trip 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 Intl Airport to Washington

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

Currently, March is the cheapest month in which you can book a flight from Glasgow Intl Airport to State of Washington (average of $488). Flying from Glasgow Intl Airport to State of Washington in December is currently the most expensive (average of $802). 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.

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 October 30, 2025.
Read reviews from past customers who have flown British Airways from Glasgow Intl Airport to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,487 reviews

Comfort

6.7

Entertainment

6.4

Crew

7.6

Overall

6.7

Boarding

6.9

Food

6.3

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,487 reviews
British Airways
6.7
Okay
7,487 reviews

Comfort

6.7

Entertainment

6.4

Crew

7.6

Overall

6.7

Boarding

6.9

Food

6.3

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

Related info for your journey

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

    Airlines like Icelandair, British Airways, and American Airlines fly from Glasgow Intl Airport to State of Washington in about 12h 25m. The time it takes to get you to your destination can typically vary by up to 22h 45m. Airlines will cover a distance of 4445 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Glasgow Intl Airport to State of Washington (average of $488). Flying from Glasgow Intl Airport to State of Washington in December is currently the most expensive (average of $802). 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.

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Alternative routes for Glasgow Intl to Washington

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Top airline flying from Glasgow Intl to Washington

Discover the top airline that operate flights from Glasgow Intl 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 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$421Average$916FlexibilityNo cancel feeOn-time70%

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