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

Airlines like Icelandair, British Airways, and Delta fly from Glasgow Intl Airport to State of Washington in about 13h 05m. The time it takes to get you to your destination can typically vary by up to 10h 05m. 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, British Airways and Aer Lingus. 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.

£361+ Cheap Flights from Glasgow Intl Airport to Washington

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 21 October 2026.

Fri 11/1207:10 -

1 stop17h 50m

Fri 25/1218:45 -

1 stop20h 05m

Deal found 20/10£487

Mon 23/1107:50 -

2 stops17h 10m

Sun 6/1214:35 -

2 stops23h 40m

Deal found 17/10£537

Mon 23/1112:15 -

2 stops33h 35m

Thu 3/1216:05 -

2 stops20h 00m

Deal found 20/10£543

Mon 23/1111:55 -

1 stop13h 05m

Sun 6/1214:35 -

1 stop11h 20m

Deal found 17/10£621

Thu 10/1211:55 -

1 stop13h 05m

Fri 25/1214:35 -

1 stop11h 20m

Deal found 20/10£621

Tue 15/1211:55 -

1 stop13h 05m

Fri 25/1214:35 -

1 stop11h 20m

Deal found 20/10£627

Wed 9/1211:35 -

1 stop13h 25m

Fri 25/1214:35 -

1 stop11h 20m

Deal found 20/10£632

Tue 1/1211:55 -

1 stop13h 05m

Tue 8/1214:35 -

1 stop11h 20m

Deal found 17/10£637

Find flight deals from Glasgow Intl to Washington

Round-trip from	£487
One-way from	£361
Popular in	May
Cheapest in	January
Average price	£628

11/12-25/12
2 total stops
37h 55m total
Glasgow to Washington

Search Deals

2/12-31/12
3 total stops
40h 35m total
Glasgow to Washington

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (£15 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 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

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sun 17/1

18:40-17:00

3 stops30h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£376

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 5/12

08:35-17:00

3 stops40h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£377

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 16/1

06:35-17:00

3 stops42h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£381

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Tue 19/1

22:05-17:00

3 stops26h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£385

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Mon 18/1

11:35-17:00

1 stop13h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£418

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 5/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£444

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 5/12

09:25-16:50

1 stop15h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£445

Fastest return journey

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sat 12/12

06:35-11:25

1 stop12h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£466

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Sun 17/1

09:05-16:50

1 stop15h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£480

GlasgowSeattle

GLA Glasgow Intl - SEA Seattle/Tacoma Intl

GLASEA

Glasgow Intl

Thu 21/1

11:30-16:50

1 stop13h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£480

Flights are sorted by cheapest return flights first.

Deals found on 21/10

Showing 1-10 of 17 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

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

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 £570 and £726 in December.
The cheapest return price found within the last 5 days was £487 on Multiple Airlines (11 Dec–25 Dec).

Reviews of airlines servicing Washington

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

Aer Lingus

7.3

Good

1,848 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Aer Lingus

7.3

Good

1,848 reviews

Aer Lingus

7.3

Good

1,848 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Icelandair

7.0

Good

762 reviews

Aer Lingus

7.3

Good

1,848 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

British Airways

6.7

Okay

8,269 reviews

Aer Lingus

7.3

Good

1,848 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Related info for your journey

How long is the flight from Glasgow Intl Airport to State of Washington?
Airlines like Icelandair, British Airways, and Delta fly from Glasgow Intl Airport to State of Washington in about 13h 05m. The time it takes to get you to your destination can typically vary by up to 10h 05m. 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.

See more FAQs

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Top 3 airlines flying from Glasgow Intl to Washington

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£444	Average£629	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£510	Average£677	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£607	Average£764	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 £361

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. 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 21 October 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 21 October 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 21 October 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 21 October 2026.

Last-minute flights from Glasgow Intl to WashingtonDiscover last-minute flight deals from Glasgow Intl to Washington. Data last updated 21 October 2026 and is based on user searches.

Discover last-minute flight deals from Glasgow Intl to Washington. Data last updated 21 October 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 21 October 2026.

Search for one-way flight options from Glasgow Intl to Washington. Find affordable one-way fares based on user searches. Data last updated 21 October 2026.

Find flight deals from Glasgow Intl to Washington

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Average price

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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

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 £570 and £726 in December.The cheapest return price found within the last 5 days was £487 on Multiple Airlines (11 Dec–25 Dec).

Reviews of airlines servicing Washington

Read through reviews of airlines operating flights from Glasgow Intl Airport to Washington, such as Aer Lingus,Icelandair, andBritish Airways. 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

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?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Glasgow Intl to Washington

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Complete your trip

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Glasgow Intl and Washington flights

Browse other Glasgow Intl and Washington flight options. Last updated on 21 October 2026.

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Top 3 airlines flying from Glasgow Intl to Washington

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

Why should you use Cheapflights to find cheap flight tickets from Glasgow Intl to Washington?

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

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 21 October 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 21 October 2026.

Last-minute flights from Glasgow Intl to Washington
Discover last-minute flight deals from Glasgow Intl to Washington. Data last updated 21 October 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 21 October 2026.

Glasgow Intl Airport to State of Washington flights typically cost between £570 and £726 in December.
The cheapest return price found within the last 5 days was £487 on Multiple Airlines (11 Dec–25 Dec).