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$647+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$692
(Icelandair)

One-way from

$647
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$729
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 ($160 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 September 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 September 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub 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
Tue 1/62:35 pmSEA - GLA
1 stop11h 20mIcelandair
Deal found 9/10$695
This Mytrip deal was found by Cheapflights users on 9/11. 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.
Sun 10/264:15 pmGLA - SEA
2 stops27h 55mMultiple Airlines
Sun 11/23:10 pmSEA - GLA
2 stops22h 25mMultiple Airlines
Deal found 9/11$708
This Icelandair deal was found by Cheapflights users on 9/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1211:05 amGLA - SEA
1 stop13h 55mIcelandair
Wed 1/72:35 pmSEA - GLA
1 stop11h 20mIcelandair
Deal found 9/10$717
This Icelandair deal was found by Cheapflights users on 9/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:35 pmGLA - SEA
1 stop12h 25mIcelandair
Thu 1/82:35 pmSEA - GLA
1 stop11h 20mIcelandair
Deal found 9/10$740
This Icelandair deal was found by Cheapflights users on 9/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:35 pmGLA - SEA
1 stop12h 25mIcelandair
Tue 1/62:35 pmSEA - GLA
1 stop11h 20mIcelandair
Deal found 9/11$741
This Delta deal was found by Cheapflights users on 9/11. 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.
Thu 10/96:00 amGLA - SEA
1 stop13h 50mDelta
Thu 10/165:40 pmSEA - GLA
1 stop14h 30mDelta
Deal found 9/11$743
This Mytrip deal was found by Cheapflights users on 9/11. 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.
Sat 10/115:20 pmGLA - SEA
3 stops28h 40mMultiple Airlines
Sun 10/194:20 pmSEA - GLA
2 stops21h 05mMultiple Airlines
Deal found 9/11$746
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:35 amGLA - SEA
1 stop18h 20mBritish Airways
Tue 1/66:50 pmSEA - GLA
1 stop16h 35mBritish Airways
Deal found 9/10$753
This British Airways deal was found by Cheapflights users on 9/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:35 amGLA - SEA
1 stop18h 20mBritish Airways
Wed 1/76:50 pmSEA - GLA
1 stop15h 25mBritish Airways
Deal found 9/11$754
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:35 amGLA - SEA
1 stop13h 20mBritish Airways
Thu 1/81:40 pmSEA - GLA
2 stops17h 30mBritish Airways
Deal found 9/10$757
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Mon 11/312:35 pmGLA - PDX
1 stop12h 25mIcelandair
Thu 11/62:45 pmPDX - GLA
1 stop11h 10mIcelandair
Deal found 9/10$789
This Delta deal was found by Cheapflights users on 9/9. 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 12/166:05 amGLA - PDX
2 stops19h 39mDelta
Mon 12/291:25 pmPDX - GLA
1 stop19h 10mDelta
Deal found 9/9$956

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 September 11, 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

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

$692

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 10/26

4:15 pm-1:10 pm

2 stops27h 55m

Seattle/Tacoma Intl

Sun 11/2

3:10 pm-9:35 pm

2 stops22h 25m

$708

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 12/12

11:05 am-5:00 pm

1 stop13h 55m

Seattle/Tacoma Intl

Wed 1/7

2:35 pm-9:55 am

1 stop11h 20m

$717

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 12/12

11:05 am-5:00 pm

1 stop13h 55m

Seattle/Tacoma Intl

Tue 1/6

2:35 pm-9:55 am

1 stop11h 20m

$717

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 12/11

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Wed 1/7

2:35 pm-9:55 am

1 stop11h 20m

$717

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 12/10

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Thu 1/8

2:35 pm-9:55 am

1 stop11h 20m

$717

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 12/9

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Thu 1/8

2:35 pm-9:55 am

1 stop11h 20m

$717

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 12/11

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Thu 1/8

2:35 pm-9:55 am

1 stop11h 20m

$717

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 12/10

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Wed 1/7

2:35 pm-9:55 am

1 stop11h 20m

$718

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Mon 11/3

12:35 pm-5:00 pm

1 stop12h 25m

Portland

Thu 11/6

2:45 pm-9:55 am

1 stop11h 10m

$789

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 25 results
1
2
3

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, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to State of Washington (average of $238). Flying from Glasgow Intl Airport to State of Washington in June is currently the most expensive (average of $388). 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 September 11, 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
7,361 reviews

Crew

7.6

Boarding

6.9

Entertainment

6.4

Overall

6.7

Food

6.3

Comfort

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
7,361 reviews
British Airways
6.7
Okay
7,361 reviews

Crew

7.6

Boarding

6.9

Entertainment

6.4

Overall

6.7

Food

6.3

Comfort

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

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, American Airlines, and Virgin Atlantic 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 21h 45m. Airlines will cover a distance of 4445 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Glasgow Intl Airport to State of Washington one-way?

    The cheapest airlines for a one-way flight from Glasgow Intl Airport to State of Washington are Icelandair ($739), Iberia ($743), and British Airways ($788).

  • 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, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to State of Washington (average of $238). Flying from Glasgow Intl Airport to State of Washington in June is currently the most expensive (average of $388). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$421Average$916FlexibilityNo cancel feeOn-time70%

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