How long is the flight from Glasgow Intl Airport to State of Washington?

Airlines like British Airways, United Airlines, and KLM fly from Glasgow Intl Airport to State of Washington in about 13h. The time it takes to get you to your destination can typically vary by up to 14h 27m. Glasgow Intl Airport and State of Washington are separated by a distance of 4445 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from Glasgow Intl Airport to State of Washington?

While some choose either Glasgow Intl - Portland or Glasgow Intl - Yakima Air Terminal, Glasgow Intl - Seattle/Tacoma Intl is the most popular route from Glasgow Intl Airport to State of Washington.

What are the most popular airlines that fly from Glasgow Intl Airport to State of Washington?

The most popular airlines flying from Glasgow Intl Airport to State of Washington are Icelandair, Aer Lingus and British Airways. Something to consider prior to booking your flight.

What is the cheapest time of day to fly from GLA to WA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Glasgow Intl Airport to State of Washington as you normally would.

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 holiday 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.

£321+ Cheap Flights from Glasgow Intl Airport to Washington

Q: How much does it cost for a return flight from Glasgow Intl Airport to State of Washington?

Airfare is below average for this route at the moment. Glasgow Intl Airport to State of Washington flights typically cost between £781 and £614 in September. The cheapest return flight price found within the last 3 days was £501 on Aer Lingus (20 Sept-3 Oct).

Cheap flight deals from Glasgow Intl to Washington

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 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

Fri 10/712:00

GLA

SEA

1 stop13h 10m

Aer Lingus

Fri 24/719:10

SEA

GLA

1 stop17h 30m

Aer Lingus

Deal found 11/6£511

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

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

Sat 19/916:40

GLA

PDX

2 stops59h 32m

Multiple Airlines

Sat 3/1015:30

PDX

GLA

1 stop13h 55m

Multiple Airlines

Deal found 7/6£690

Sun 20/914:00

GLA

PDX

1 stop27h 50m

Lufthansa

Sun 4/1022:33

PDX

GLA

1 stop27h 37m

Lufthansa

Deal found 7/6£700

Find flight deals from Glasgow Intl to Washington

Round-trip from	£501
One-way from	£321
Popular in	August
Cheapest in	January
Average price	£684

Aer Lingus
20/9-3/10
2 total stops
25h 25m total
Glasgow to Washington

Search Deals

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

Use the filters below to find and compare flights from Glasgow Intl Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

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 6/10

09:35-18:25

1 stop16h 50m

Seattle/Tacoma Intl

Tue 27/10

14:12-15:50

2 stops18h 38m

£564

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

Sat 19/9

14:00-09:36

2 stops27h 36m

Seattle/Tacoma Intl

Sat 3/10

10:42-10:10

2 stops15h 28m

£577

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

Sat 19/9

06:00-11:10

1 stop13h 10m

Portland

Sat 3/10

13:05-09:40

1 stop12h 35m

£749

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 30/9

07:30-19:36

2 stops20h 06m

Portland

Sun 4/10

19:30-18:45

1 stop15h 15m

£765

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Sun 20/9

06:00-11:10

1 stop13h 10m

Portland

Sat 3/10

13:05-09:40

1 stop12h 35m

£767

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 1/7

09:10-20:17

2 stops19h 07m

Portland

Thu 16/7

13:05-12:55

1 stop15h 50m

£811

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 31 resultsSorted by cheapest first

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.

GLA-SEA

GLA-PDX

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 Intl Airport to Washington

GLA-USWA

GLA-SEA

GLA-PDX

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 £431). Flying from Glasgow Intl Airport 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 Intl Airport to State of Washington?

Reviews of airlines servicing Washington

Read through reviews of airlines operating flights from Glasgow Intl Airport to Washington, such as KLM,Aer Lingus, andIcelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,527 reviews

Check prices

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

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

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

673 reviews

KLM

7.8

Good

1,527 reviews

Check prices

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

8,046 reviews

KLM

7.8

Good

1,527 reviews

Check prices

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

How long is the flight from Glasgow Intl Airport to State of Washington?
Airlines like British Airways, United Airlines, and KLM fly from Glasgow Intl Airport to State of Washington in about 13h. The time it takes to get you to your destination can typically vary by up to 14h 27m. Glasgow Intl Airport and State of Washington are separated by a distance of 4445 mi. This flight may include one or multiple stops.
What are the most popular routes from Glasgow Intl Airport to State of Washington?
While some choose either Glasgow Intl - Portland or Glasgow Intl - Yakima Air Terminal, Glasgow Intl - Seattle/Tacoma Intl is the most popular route from Glasgow Intl Airport to State of Washington.
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 holiday 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 £431). Flying from Glasgow Intl Airport 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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Top 4 airlines flying from Glasgow Intl to Washington

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£451	Average£611	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
KLM	Cheapest£499	Average£615	FlexibilityNo cancel fee	On-time75%	Search KLM flights
British Airways	Cheapest£509	Average£736	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£645	Average£777	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

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

Deals for Glasgow Intl 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 Intl to Washington?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington from Glasgow Intl.

Can Cheapflights find flights from Glasgow Intl to Washington with no change fees?

Yes, we can. To see specific flights from Glasgow Intl to Washington with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Glasgow Intl to Washington become cheaper?

Yes, Cheapflights offers price alerts on Glasgow Intl to Washington flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Glasgow Intl Airport 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.

Cheap flight deals from Glasgow Intl to Washington

Cheapest flights from Glasgow Intl to WashingtonExplore 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 11 June 2026.

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 11 June 2026.

Best flights from Glasgow Intl to WashingtonDiscover carefully curated flight deals from Glasgow Intl to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 June 2026.

Discover carefully curated flight deals from Glasgow Intl to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 June 2026.

Last-minute flights from Glasgow Intl to WashingtonDiscover last-minute flight deals from Glasgow Intl to Washington. Data last updated 11 June 2026 and is based on user searches.

Discover last-minute flight deals from Glasgow Intl to Washington. Data last updated 11 June 2026 and is based on user searches.

One-way flights from Glasgow Intl to WashingtonSearch for one-way flight options from Glasgow Intl to Washington. Find affordable one-way fares based on user searches. Data last updated 11 June 2026.

Search for one-way flight options from Glasgow Intl to Washington. Find affordable one-way fares based on user searches. Data last updated 11 June 2026.

Find 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 11 June 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Glasgow Intl Airport to Washington that are best for you.

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.

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?

How much does it cost for a return flight from Glasgow Intl Airport to State of Washington?

Reviews of airlines servicing Washington

Read through reviews of airlines operating flights from Glasgow Intl Airport to Washington, such as KLM,Aer Lingus, andIcelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the most popular routes from Glasgow Intl Airport to State of Washington?

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Glasgow Intl to Washington

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Washington by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

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Search flights from Glasgow Intl to Washington by cabin class

Find flights from Glasgow Intl to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Glasgow Intl and Washington flights

Browse other Glasgow Intl and Washington flight options. Last updated on 11 June 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 4 airlines flying from Glasgow Intl to Washington

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Can Cheapflights notify me if prices for flights from Glasgow Intl to Washington become cheaper?

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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 11 June 2026.

Best flights from Glasgow Intl to Washington
Discover carefully curated flight deals from Glasgow Intl to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 June 2026.

Last-minute flights from Glasgow Intl to Washington
Discover last-minute flight deals from Glasgow Intl to Washington. Data last updated 11 June 2026 and is based on user searches.

One-way flights from Glasgow Intl to Washington
Search for one-way flight options from Glasgow Intl to Washington. Find affordable one-way fares based on user searches. Data last updated 11 June 2026.