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

Airlines like Icelandair, Delta, 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 40m. 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 KLM. 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.

£303+ 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 £471 and £632 in February. The cheapest return flight price found within the last 3 days was £418 on Icelandair (19 Feb-26 Feb).

Cheap flight deals from Glasgow Intl to Washington

Round-trip from	£418
One-way from	£303
Popular in	July
Cheapest in	January
Average price	£487

Icelandair
19/2-26/2
2 total stops
24h 45m total
Glasgow to Washington

Search Deals

2/2
2 total stops
57h 29m total
Glasgow to Washington

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£96 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 Intl to Washington

Enter your travel dates to find the best prices.

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 6 January 2026.

Thu 19/211:35GLA - SEA

1 stop13h 25mIcelandair

Thu 26/214:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 5/1£418

Mon 9/312:35GLA - SEA

1 stop12h 25mIcelandair

Mon 16/315:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 4/1£438

Fri 1/514:20GLA - SEA

1 stop11h 35mIcelandair

Tue 5/515:40SEA - GLA

1 stop13h 45mIcelandair

Deal found 4/1£481

Mon 9/306:05GLA - SEA

1 stop13h 30mDelta

Mon 16/312:05SEA - GLA

2 stops21h 30mDelta

Deal found 4/1£486

Thu 19/212:50GLA - SEA

2 stops32h 30mLufthansa

Thu 26/214:00SEA - GLA

1 stop14h 05mLufthansa

Deal found 5/1£493

Fri 27/1112:50GLA - SEA

1 stop31h 20mLufthansa

Tue 15/1214:00SEA - GLA

1 stop14h 05mLufthansa

Deal found 5/1£514

Thu 19/212:50GLA - SEA

2 stops32h 30mMultiple Airlines

Thu 26/209:55SEA - GLA

2 stops18h 10mMultiple Airlines

Deal found 5/1£517

Fri 1/507:00GLA - SEA

1 stop12h 35mBritish Airways

Tue 5/511:16SEA - GLA

2 stops17h 59mBritish Airways

Deal found 4/1£533

Mon 14/909:25GLA - SEA

2 stops42h 16mMultiple Airlines

Wed 23/910:00SEA - GLA

2 stops22h 30mMultiple Airlines

Deal found 4/1£535

Wed 2/914:20GLA - PDX

1 stop29h 25mIcelandair

Sat 12/915:30PDX - GLA

1 stop13h 55mIcelandair

Deal found 4/1£573

Wed 18/206:05GLA - PDX

1 stop13h 20mDelta

Wed 25/213:25PDX - GLA

1 stop19h 10mDelta

Deal found 4/1£601

Sun 8/215:55GLA - PDX

1 stop32h 00mBritish Airways

Mon 23/217:45PDX - GLA

1 stop12h 45mBritish Airways

Deal found 6/1£603

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 6 January 2026.

Mon 9/312:35GLA - SEA

1 stop12h 25mIcelandair

Mon 16/315:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 4/1£438

Mon 9/306:05GLA - SEA

2 stops19h 33mDelta

Mon 16/312:05SEA - GLA

2 stops21h 30mDelta

Deal found 4/1£491

Thu 19/212:50GLA - SEA

2 stops32h 30mLufthansa

Thu 26/214:00SEA - GLA

1 stop14h 05mLufthansa

Deal found 5/1£493

Thu 19/212:50GLA - SEA

2 stops32h 30mMultiple Airlines

Thu 26/209:55SEA - GLA

2 stops18h 10mMultiple Airlines

Deal found 5/1£517

Fri 1/507:00GLA - SEA

1 stop12h 35mBritish Airways

Tue 5/511:16SEA - GLA

2 stops17h 59mBritish Airways

Deal found 4/1£533

Sun 8/212:50GLA - PDX

1 stop35h 05mAmerican Airlines

Mon 23/211:48PDX - GLA

2 stops20h 47mAmerican Airlines

Deal found 6/1£620

Fri 20/206:05GLA - PDX

1 stop13h 20mKLM

Fri 27/213:25PDX - GLA

1 stop24h 45mKLM

Deal found 6/1£638

Fri 1/514:20GLA - SEA

1 stop11h 35mIcelandair

Tue 5/519:00SEA - GLA

1 stop10h 25mIcelandair

Deal found 3/1£481

Wed 18/206:05GLA - PDX

1 stop13h 20mDelta

Wed 25/206:00PDX - GLA

2 stops18h 30mDelta

Deal found 4/1£601

Fri 8/505:50GLA - PDX

1 stop19h 50mBritish Airways

Tue 12/513:14PDX - GLA

2 stops25h 21mBritish Airways

Deal found 3/1£656

Fri 8/514:20GLA - PDX

1 stop11h 40mIcelandair

Tue 12/515:30PDX - GLA

1 stop13h 55mIcelandair

Deal found 4/1£638

Fri 12/607:00GLA - SEA

1 stop12h 35mMultiple Airlines

Sun 21/620:20SEA - GLA

1 stop12h 20mMultiple Airlines

Deal found 5/1£842

Last-minute flights from Glasgow Intl to Washington
Discover last-minute flight deals from Glasgow Intl to Washington. Data last updated 6 January 2026 and is based on user searches.

Fri 9/110:40GLA - PDX

1 stop13h 15mMultiple Airlines

Sun 11/117:45PDX - GLA

1 stop12h 50mMultiple Airlines

Deal found 5/1£1,622

Sun 8/215:55GLA - PDX

1 stop32h 00mBritish Airways

Mon 23/217:45PDX - GLA

1 stop12h 45mBritish Airways

Deal found 6/1£603

Sun 8/212:50GLA - PDX

1 stop35h 05mAmerican Airlines

Mon 23/211:48PDX - GLA

2 stops20h 47mAmerican Airlines

Deal found 6/1£620

Sun 8/212:35GLA - PDX

3 stops28h 40mMultiple Airlines

Mon 23/213:25PDX - GLA

2 stops18h 35mMultiple Airlines

Deal found 6/1£1,056

Wed 18/206:05GLA - PDX

1 stop13h 20mDelta

Wed 25/213:25PDX - GLA

1 stop19h 10mDelta

Deal found 4/1£601

Wed 18/212:50GLA - PDX

2 stops37h 40mMultiple Airlines

Wed 25/209:50PDX - GLA

3 stops27h 10mMultiple Airlines

Deal found 4/1£932

Thu 19/211:35GLA - SEA

1 stop13h 25mIcelandair

Thu 26/214:35SEA - GLA

1 stop11h 20mIcelandair

Deal found 5/1£418

Thu 19/212:50GLA - SEA

2 stops32h 30mLufthansa

Thu 26/214:00SEA - GLA

1 stop14h 05mLufthansa

Deal found 5/1£493

Thu 19/212:50GLA - SEA

2 stops32h 30mMultiple Airlines

Thu 26/209:55SEA - GLA

2 stops18h 10mMultiple Airlines

Deal found 5/1£517

Fri 20/206:05GLA - PDX

1 stop13h 20mKLM

Fri 27/213:25PDX - GLA

1 stop24h 45mKLM

Deal found 6/1£638

Fri 20/207:05GLA - PDX

3 stops34h 10mMultiple Airlines

Fri 27/209:50PDX - GLA

2 stops18h 30mMultiple Airlines

Deal found 6/1£891

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 6 January 2026.

Mon 2/212:50GLA - SEA

2 stops57h 29mMultiple Airlines

Deal found 5/1£303

Mon 25/508:05GLA - SEA

3 stops39h 55mMultiple Airlines

Deal found 5/1£353

Sat 28/222:30GLA - PDX

3 stops50h 20mMultiple Airlines

Deal found 5/1£359

Wed 3/621:10GLA - PDX

3 stops46h 08mMultiple Airlines

Deal found 3/1£361

Thu 28/515:20GLA - PDX

3 stops50h 28mMultiple Airlines

Deal found 3/1£368

Tue 2/621:20GLA - PDX

3 stops45h 58mMultiple Airlines

Deal found 3/1£372

Sun 31/508:45GLA - PDX

2 stops46h 59mMultiple Airlines

Deal found 3/1£376

Mon 27/414:20GLA - SEA

1 stop11h 35mIcelandair

Deal found 5/1£381

Fri 29/506:50GLA - PDX

3 stops46h 34mMultiple Airlines

Deal found 3/1£396

Mon 1/622:20GLA - PDX

3 stops33h 51mMultiple Airlines

Deal found 3/1£404

Sun 29/308:40GLA - SEA

3 stops57h 49mMultiple Airlines

Deal found 5/1£407

Mon 25/508:35GLA - SEA

1 stop16h 35mAer Lingus

Deal found 5/1£462

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

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 9/3

12:35-18:00

1 stop12h 25m

Seattle/Tacoma Intl

Mon 16/3

15:35-09:55

1 stop11h 20m

£438

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 1/5

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

Tue 5/5

19:00-13:25

1 stop10h 25m

£481

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 9/3

06:05-18:38

2 stops19h 33m

Seattle/Tacoma Intl

Mon 16/3

12:05-16:35

2 stops21h 30m

£491

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 19/2

12:50-13:20

2 stops32h 30m

Seattle/Tacoma Intl

Thu 26/2

14:00-12:05

1 stop14h 05m

£493

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 19/2

12:50-13:20

2 stops32h 30m

Seattle/Tacoma Intl

Thu 26/2

09:55-12:05

2 stops18h 10m

£517

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 1/5

07:00-11:35

1 stop12h 35m

Seattle/Tacoma Intl

Tue 5/5

11:16-13:15

2 stops17h 59m

£533

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 18/2

06:05-11:25

1 stop13h 20m

Portland

Wed 25/2

06:00-08:30

2 stops18h 30m

£601

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Sun 8/2

12:50-15:55

1 stop35h 05m

Portland

Mon 23/2

11:48-16:35

2 stops20h 47m

£620

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Fri 20/2

06:05-11:25

1 stop13h 20m

Portland

Fri 27/2

13:25-22:10

1 stop24h 45m

£638

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Fri 8/5

14:20-18:00

1 stop11h 40m

Portland

Tue 12/5

15:30-13:25

1 stop13h 55m

£638

Flights are sorted by cheapest return flights first.

Deals found on 5/1

Showing 1-10 of 27 results

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 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

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 £356). Flying from Glasgow Intl Airport to State of Washington in December is currently the most expensive (average of £590). 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

7.7

Good

1,434 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

KLM

7.7

Good

1,434 reviews

KLM

7.7

Good

1,434 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Aer Lingus

7.2

Good

1,425 reviews

KLM

7.7

Good

1,434 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Icelandair

7.1

Good

593 reviews

KLM

7.7

Good

1,434 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Lufthansa

6.8

Okay

7,683 reviews

KLM

7.7

Good

1,434 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

British Airways

6.7

Okay

7,657 reviews

KLM

7.7

Good

1,434 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

How long is the flight from Glasgow Intl Airport to State of Washington?
Airlines like Icelandair, Delta, 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 40m. 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 £356). Flying from Glasgow Intl Airport to State of Washington in December is currently the most expensive (average of £590). 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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Complete your trip

State of Washington car hire

Seattle/Tacoma Intl Airport car hire

Spokane Airport car hire

Pasco Tri Cities Airport car hire

Bellingham Airport car hire

Wenatchee Pangborn Field Airport car hire

Pullman Moscow Regional Airport car hire

Yakima Air Terminal Airport car hire

Walla Walla Airport car hire

Kenmore Air Harbor Airport car hire

Seattle car hire

Bellingham car hire

Direct flights to United States

Top 5 airlines flying from Glasgow Intl to Washington

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£438	Average£608	FlexibilityNo cancel fee	On-time75%	Search KLM flights
British Airways	Cheapest£438	Average£576	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£460	Average£589	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Icelandair	Cheapest£480	Average£601	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£743	Average£774	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 £303

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 2/2. 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

Keep the following information in mind while searching for Glasgow Intl to Washington flight deals. Data was last updated 6 January 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 6 January 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 6 January 2026.

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Glasgow Intl to Washington

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

Top 5 airlines flying from Glasgow Intl to Washington

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 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 6 January 2026.