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

The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £622. However, be on the lookout for offers from British Airways and Finnair, as they are both options that can get you from Glasgow Intl Airport to State of Washington for a low price.

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 Air France, British Airways and Aer Lingus. Something to consider prior to booking your flight.

How far in advance should I book a flight from Glasgow Intl Airport to State of Washington?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 44 days in advance, which can save you up to 40% on flights from Glasgow Intl Airport to State of Washington compared to booking the week you need them. Waiting 44 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £625. For sooner than that we have options available in the next 3 days from £829.

What is the cheapest month to fly from Glasgow Intl Airport to State of Washington?

February can be a great time to fly to State of Washington from Glasgow Intl Airport with a flight ticket averaging about £635. Cheapflights users have found deals in the month of February for as cheap as £438. The most expensive prices can be found in the month of August.

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.

£602+ Flights from Glasgow Intl Airport to Washington - Compare & Save Big

Cheap flight deals from Glasgow Intl to Washington

Round-trip from	£602
Popular in	August
Cheapest in	February
Average price	£628

British Airways
18/6-5/7
2 total stops
29h 00m total
Glasgow to Washington

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£60 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 26 April 2025.

Wed 18/613:05GLA - SEA

1 stop13h 15mBritish Airways

Sat 5/713:35SEA - GLA

1 stop15h 45mBritish Airways

Deal found 25/4£602

Wed 18/605:50GLA - SEA

2 stops18h 10mAmerican Airlines

Thu 3/713:30SEA - GLA

1 stop16h 05mAmerican Airlines

Deal found 25/4£613

Wed 18/606:00GLA - SEA

2 stops16h 45mKLM

Sat 5/717:35SEA - GLA

1 stop21h 35mKLM

Deal found 25/4£639

Mon 16/614:20GLA - SEA

1 stop11h 30mIcelandair

Tue 8/719:00SEA - GLA

1 stop10h 25mIcelandair

Deal found 25/4£648

Sun 15/610:30GLA - SEA

1 stop33h 10mDelta

Wed 2/713:30SEA - GLA

2 stops18h 40mDelta

Deal found 25/4£657

Fri 6/606:55GLA - SEA

3 stops25h 15mMultiple Airlines

Sun 29/605:30SEA - GLA

3 stops31h 55mMultiple Airlines

Deal found 26/4£699

Mon 16/610:35GLA - SEA

1 stop32h 35mIberia

Thu 3/713:30SEA - GLA

1 stop12h 45mIberia

Deal found 25/4£709

Wed 9/708:35GLA - PDX

3 stops36h 17mMultiple Airlines

Mon 28/715:20PDX - GLA

2 stops21h 25mMultiple Airlines

Deal found 25/4£725

Mon 16/606:10GLA - SEA

1 stop14h 15mLufthansa

Wed 2/714:20SEA - GLA

1 stop14h 05mLufthansa

Deal found 25/4£728

Wed 9/709:10GLA - PDX

2 stops20h 25mDelta

Mon 28/713:15PDX - GLA

1 stop15h 45mDelta

Deal found 25/4£760

Wed 9/706:00GLA - PDX

1 stop13h 20mKLM

Mon 28/713:15PDX - GLA

1 stop25h 55mKLM

Deal found 25/4£897

Thu 1/514:20GLA - PDX

1 stop11h 35mIcelandair

Wed 21/515:20PDX - GLA

1 stop14h 05mIcelandair

Deal found 25/4£926

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 26 April 2025.

Wed 18/613:05GLA - SEA

1 stop13h 15mBritish Airways

Sat 5/713:35SEA - GLA

1 stop15h 45mBritish Airways

Deal found 25/4£602

Wed 18/605:50GLA - SEA

2 stops18h 10mAmerican Airlines

Tue 8/720:20SEA - GLA

1 stop12h 25mAmerican Airlines

Deal found 25/4£613

Wed 18/606:00GLA - SEA

2 stops16h 45mKLM

Sat 5/717:35SEA - GLA

1 stop21h 35mKLM

Deal found 25/4£639

Mon 16/614:20GLA - SEA

1 stop11h 30mIcelandair

Tue 8/719:00SEA - GLA

1 stop10h 25mIcelandair

Deal found 25/4£648

Sun 15/610:30GLA - SEA

1 stop33h 10mDelta

Wed 2/713:30SEA - GLA

2 stops18h 40mDelta

Deal found 25/4£657

Fri 6/606:55GLA - SEA

3 stops25h 15mMultiple Airlines

Sun 29/605:30SEA - GLA

3 stops31h 55mMultiple Airlines

Deal found 26/4£699

Mon 16/610:35GLA - SEA

1 stop32h 35mIberia

Thu 3/713:30SEA - GLA

1 stop12h 45mIberia

Deal found 25/4£709

Mon 16/606:10GLA - SEA

1 stop14h 15mLufthansa

Wed 2/714:20SEA - GLA

1 stop14h 05mLufthansa

Deal found 25/4£728

Wed 9/708:35GLA - PDX

3 stops36h 17mMultiple Airlines

Mon 28/715:20PDX - GLA

2 stops21h 25mMultiple Airlines

Deal found 25/4£725

Wed 9/709:10GLA - PDX

2 stops20h 25mDelta

Mon 28/713:15PDX - GLA

1 stop15h 45mDelta

Deal found 25/4£760

Wed 9/706:00GLA - PDX

1 stop13h 20mKLM

Mon 28/713:15PDX - GLA

1 stop25h 55mKLM

Deal found 25/4£897

Wed 9/709:25GLA - PDX

2 stops21h 34mBritish Airways

Sun 27/700:59PDX - GLA

2 stops25h 06mBritish Airways

Deal found 25/4£992

Last-minute flights from Glasgow Intl to Washington
Discover last-minute flight deals from Glasgow Intl to Washington. Data last updated 26 April 2025 and is based on user searches.

Wed 30/414:20GLA - SEA

1 stop11h 30mIcelandair

Wed 7/519:00SEA - GLA

1 stop10h 25mIcelandair

Deal found 26/4£690

Wed 30/409:00GLA - SEA

3 stops42h 51mMultiple Airlines

Wed 7/505:30SEA - GLA

3 stops23h 50mMultiple Airlines

Deal found 25/4£852

Wed 30/409:25GLA - SEA

1 stop16h 55mBritish Airways

Wed 7/513:30SEA - GLA

1 stop16h 45mBritish Airways

Deal found 25/4£890

Wed 30/407:00GLA - SEA

1 stop12h 35mAmerican Airlines

Wed 7/513:30SEA - GLA

1 stop24h 10mAmerican Airlines

Deal found 26/4£895

Wed 30/413:10GLA - SEA

1 stop31h 15mLufthansa

Wed 7/508:10SEA - GLA

2 stops20h 15mLufthansa

Deal found 26/4£966

Thu 1/514:20GLA - PDX

1 stop11h 35mIcelandair

Wed 21/515:20PDX - GLA

1 stop14h 05mIcelandair

Deal found 25/4£926

Thu 1/514:20GLA - PDX

1 stop11h 35mMultiple Airlines

Wed 21/516:00PDX - GLA

2 stops13h 25mMultiple Airlines

Deal found 25/4£1,060

Thu 1/511:30GLA - PDX

1 stop14h 05mAmerican Airlines

Wed 21/519:25PDX - GLA

1 stop16h 20mAmerican Airlines

Deal found 26/4£1,239

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 26 April 2025.

Sat 30/814:20GLA - PDX

1 stop11h 35mIcelandair

Deal found 25/4£622

Sat 30/807:55GLA - PDX

2 stops21h 35mBritish Airways

Deal found 25/4£714

Tue 7/1015:35GLA - PDX

1 stop34h 00mFinnair

Deal found 26/4£817

Tue 7/1020:10GLA - PDX

3 stops30h 22mMultiple Airlines

Deal found 25/4£1,035

Fri 3/1014:20GLA - SEA

2 stops14h 21mIcelandair

Deal found 25/4£1,727

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

Wed 18/6

13:05-18:20

1 stop13h 15m

Seattle/Tacoma Intl

Sat 5/7

13:35-13:20

1 stop15h 45m

£602

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 18/6

05:50-16:00

2 stops18h 10m

Seattle/Tacoma Intl

Tue 8/7

20:20-16:45

1 stop12h 25m

£613

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 18/6

06:00-14:45

2 stops16h 45m

Seattle/Tacoma Intl

Sat 5/7

17:35-23:10

1 stop21h 35m

£639

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 16/6

14:20-17:50

1 stop11h 30m

Seattle/Tacoma Intl

Tue 8/7

19:00-13:25

1 stop10h 25m

£648

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sun 15/6

10:30-11:40

1 stop33h 10m

Seattle/Tacoma Intl

Wed 2/7

13:30-16:10

2 stops18h 40m

£657

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 6/6

06:55-00:10

3 stops25h 15m

Seattle/Tacoma Intl

Sun 29/6

05:30-21:25

3 stops31h 55m

£699

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 16/6

10:35-11:10

1 stop32h 35m

Seattle/Tacoma Intl

Thu 3/7

13:30-10:15

1 stop12h 45m

£709

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 9/7

08:35-12:52

3 stops36h 17m

Portland

Mon 28/7

15:20-20:45

2 stops21h 25m

£725

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 16/6

06:10-12:25

1 stop14h 15m

Seattle/Tacoma Intl

Wed 2/7

14:20-12:25

1 stop14h 05m

£728

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 9/7

09:10-21:35

2 stops20h 25m

Portland

Mon 28/7

13:15-13:00

1 stop15h 45m

£760

Flights are sorted by cheapest return flights first.

Deals found on 25/4

Showing 1-10 of 17 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, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to State of Washington (average of £622). Flying from Glasgow Intl Airport to State of Washington in July is currently the most expensive (average of £946). 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.

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.

Rainfall in Washington by month

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.

Temperature in Washington by month

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).

Reviews of airlines servicing Washington

Read through reviews of airlines operating flights from Glasgow to Washington, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,920 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,334 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,272 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Icelandair

7.0

Good

484 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines to fly from Glasgow Intl Airport to State of Washington one-way?
The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £622. However, be on the lookout for offers from British Airways and Finnair, as they are both options that can get you from Glasgow Intl Airport to State of Washington for a low price.
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, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to State of Washington (average of £622). Flying from Glasgow Intl Airport to State of Washington in July is currently the most expensive (average of £946). 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

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

State of Washington car hire

Seattle/Tacoma Intl Airport car hire

Spokane Airport car hire

Wenatchee Pangborn Field Airport car hire

Pasco Tri Cities Airport car hire

Bellingham 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 6 airlines flying from Glasgow Intl to Washington

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£444	Average£632	FlexibilityNo cancel fee	On-time75%	Search KLM flights
British Airways	Cheapest£446	Average£812	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Air France	Cheapest£458	Average£516	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Lufthansa	Cheapest£466	Average£596	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Icelandair	Cheapest£484	Average£747	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£666	Average£858	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

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 £602

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/6. 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 26 April 2025.

Round-trip 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 26 April 2025.

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 26 April 2025.

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?

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

Find hourly flight availability from Glasgow Intl to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 April 2025.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington

Read through reviews of airlines operating flights from Glasgow to Washington, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's 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.

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

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 6 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 26 April 2025.