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 £490. However, be on the lookout for offers from Aer Lingus and Lufthansa, as they are both options that can get you from Glasgow Intl Airport to State of Washington for a low price.

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 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 £605. For sooner than that we have options available in the next 3 days from £808.

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 £609. Cheapflights users have found deals in the month of February for as cheap as £425. 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.

£341+ Flights from Glasgow Intl Airport to Washington

Cheap flight deals from Glasgow Intl to Washington

Round-trip from	£600
One-way from	£341
Popular in	August
Cheapest in	February
Average price	£717

Icelandair
4/9-18/9
2 total stops
25h 40m total
Glasgow to Washington

Search Deals

1/9
3 total stops
46h 49m total
Glasgow to Washington

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£45 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 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 2 July 2025.

Thu 4/914:20GLA - PDX

1 stop11h 35mIcelandair

Thu 18/915:20PDX - GLA

1 stop14h 05mIcelandair

Deal found 30/6£600

Mon 11/808:35GLA - SEA

2 stops18h 03mMultiple Airlines

Mon 25/807:05SEA - GLA

2 stops15h 45mMultiple Airlines

Deal found 1/7£620

Thu 4/908:55GLA - PDX

2 stops20h 04mDelta

Thu 18/907:15PDX - GLA

2 stops21h 45mDelta

Deal found 30/6£653

Thu 13/1113:40GLA - YKM

2 stops42h 19mAmerican Airlines

Mon 17/1105:20YKM - GLA

2 stops27h 15mAmerican Airlines

Deal found 29/6£657

Thu 4/913:30GLA - PDX

1 stop29h 35mKLM

Thu 18/907:15PDX - GLA

2 stops16h 55mKLM

Deal found 30/6£672

Mon 14/709:05GLA - PDX

2 stops23h 22mMultiple Airlines

Tue 4/1114:16PDX - GLA

2 stops18h 39mMultiple Airlines

Deal found 30/6£737

Mon 11/814:20GLA - SEA

1 stop29h 05mIcelandair

Mon 25/815:45SEA - GLA

1 stop13h 40mIcelandair

Deal found 1/7£746

Tue 12/812:00GLA - SEA

1 stop13h 50mAer Lingus

Fri 29/819:35SEA - GLA

1 stop16h 00mAer Lingus

Deal found 30/6£754

Mon 28/706:00GLA - SEA

1 stop17h 50mKLM

Tue 12/817:40SEA - GLA

1 stop14h 30mKLM

Deal found 30/6£769

Mon 28/706:00GLA - SEA

1 stop17h 50mDelta

Tue 12/811:23SEA - GLA

2 stops17h 37mDelta

Deal found 1/7£773

Mon 28/709:05GLA - PDX

1 stop16h 30mBritish Airways

Tue 12/819:25PDX - GLA

1 stop13h 20mBritish Airways

Deal found 30/6£1,094

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 2 July 2025.

Thu 4/914:20GLA - PDX

1 stop11h 35mIcelandair

Thu 18/915:20PDX - GLA

1 stop14h 05mIcelandair

Deal found 30/6£600

Mon 11/808:35GLA - SEA

2 stops18h 03mMultiple Airlines

Mon 25/807:05SEA - GLA

2 stops15h 45mMultiple Airlines

Deal found 1/7£620

Thu 4/908:55GLA - PDX

2 stops20h 04mDelta

Thu 18/907:15PDX - GLA

2 stops21h 45mDelta

Deal found 30/6£653

Thu 13/1113:40GLA - YKM

2 stops42h 19mAmerican Airlines

Mon 17/1105:20YKM - GLA

2 stops27h 15mAmerican Airlines

Deal found 29/6£657

Thu 4/913:30GLA - PDX

1 stop29h 35mKLM

Thu 18/907:15PDX - GLA

2 stops16h 55mKLM

Deal found 30/6£672

Tue 12/812:00GLA - SEA

1 stop13h 50mAer Lingus

Fri 29/819:35SEA - GLA

1 stop16h 00mAer Lingus

Deal found 30/6£754

Mon 28/709:05GLA - PDX

1 stop16h 30mBritish Airways

Tue 12/819:25PDX - GLA

1 stop13h 20mBritish Airways

Deal found 30/6£1,094

Mon 14/709:05GLA - PDX

2 stops23h 22mMultiple Airlines

Tue 4/1114:16PDX - GLA

2 stops18h 39mMultiple Airlines

Deal found 30/6£737

Mon 11/814:20GLA - SEA

1 stop29h 05mIcelandair

Mon 25/815:45SEA - GLA

1 stop13h 40mIcelandair

Deal found 1/7£746

Mon 28/706:00GLA - SEA

1 stop17h 50mKLM

Tue 12/817:40SEA - GLA

1 stop14h 30mKLM

Deal found 30/6£769

Mon 28/706:00GLA - SEA

1 stop17h 50mDelta

Tue 12/811:23SEA - GLA

2 stops17h 37mDelta

Deal found 1/7£773

Last-minute flights from Glasgow Intl to Washington
Discover last-minute flight deals from Glasgow Intl to Washington. Data last updated 2 July 2025 and is based on user searches.

Wed 9/706:00GLA - PDX

1 stop13h 20mDelta

Wed 23/707:15PDX - GLA

2 stops21h 45mDelta

Deal found 30/6£720

Wed 9/706:00GLA - PDX

1 stop13h 20mKLM

Wed 23/713:15PDX - GLA

1 stop25h 55mKLM

Deal found 1/7£742

Wed 9/706:00GLA - PDX

1 stop13h 20mKLM

Wed 23/713:15PDX - GLA

1 stop15h 45mKLM

Deal found 30/6£720

Wed 9/706:00GLA - PDX

2 stops21h 00mDelta

Wed 23/711:15PDX - GLA

2 stops20h 55mDelta

Deal found 1/7£724

Mon 14/709:05GLA - PDX

2 stops23h 22mMultiple Airlines

Tue 4/1114:16PDX - GLA

2 stops18h 39mMultiple Airlines

Deal found 30/6£737

Mon 28/706:00GLA - SEA

1 stop17h 50mKLM

Tue 12/817:40SEA - GLA

1 stop14h 30mKLM

Deal found 30/6£769

Mon 28/706:00GLA - SEA

1 stop17h 50mDelta

Tue 12/811:23SEA - GLA

2 stops17h 37mDelta

Deal found 1/7£773

Mon 28/709:05GLA - PDX

1 stop16h 30mBritish Airways

Tue 12/819:25PDX - GLA

1 stop13h 20mBritish Airways

Deal found 30/6£1,094

Mon 11/808:35GLA - SEA

2 stops18h 03mMultiple Airlines

Mon 25/807:05SEA - GLA

2 stops15h 45mMultiple Airlines

Deal found 1/7£620

Mon 11/814:20GLA - SEA

1 stop29h 05mIcelandair

Mon 25/815:45SEA - GLA

1 stop13h 40mIcelandair

Deal found 1/7£746

Tue 12/812:00GLA - SEA

1 stop13h 50mAer Lingus

Fri 29/819:35SEA - GLA

1 stop16h 00mAer Lingus

Deal found 30/6£754

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 2 July 2025.

Mon 1/921:50GLA - SEA

3 stops46h 49mMultiple Airlines

Deal found 1/7£341

Sat 9/808:35GLA - PDX

2 stops32h 43mMultiple Airlines

Deal found 30/6£444

Tue 7/1014:20GLA - PDX

1 stop11h 35mIcelandair

Deal found 1/7£490

Fri 12/913:05GLA - SEA

1 stop12h 45mAer Lingus

Deal found 29/6£533

Tue 12/814:20GLA - SEA

1 stop11h 30mIcelandair

Deal found 29/6£549

Sat 30/806:10GLA - PDX

2 stops22h 27mLufthansa

Deal found 30/6£596

Sat 30/810:20GLA - SEA

2 stops17h 42mBritish Airways

Deal found 1/7£695

Sat 30/807:55GLA - PDX

1 stop17h 40mBritish Airways

Deal found 1/7£769

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

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Thu 4/9

14:20-17:55

1 stop11h 35m

Portland

Thu 18/9

15:20-13:25

1 stop14h 05m

£600

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 11/8

08:35-18:38

2 stops18h 03m

Seattle/Tacoma Intl

Mon 25/8

07:05-06:50

2 stops15h 45m

£620

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Thu 4/9

08:55-20:59

2 stops20h 04m

Portland

Thu 18/9

07:15-13:00

2 stops21h 45m

£653

GlasgowYakima

GLA - YKM

GLAYKM

Glasgow Intl

Thu 13/11

13:40-23:59

2 stops42h 19m

Yakima Air Terminal

Mon 17/11

05:20-16:35

2 stops27h 15m

£657

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Thu 4/9

13:30-11:05

1 stop29h 35m

Portland

Thu 18/9

07:15-08:10

2 stops16h 55m

£672

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Mon 14/7

09:05-00:27

2 stops23h 22m

Portland

Tue 4/11

14:16-16:55

2 stops18h 39m

£737

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 11/8

14:20-11:25

1 stop29h 05m

Seattle/Tacoma Intl

Mon 25/8

15:45-13:25

1 stop13h 40m

£746

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 12/8

12:00-17:50

1 stop13h 50m

Seattle/Tacoma Intl

Fri 29/8

19:35-19:35

1 stop16h 00m

£754

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 28/7

06:00-15:50

1 stop17h 50m

Seattle/Tacoma Intl

Tue 12/8

17:40-16:10

1 stop14h 30m

£769

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 28/7

06:00-15:50

1 stop17h 50m

Seattle/Tacoma Intl

Tue 12/8

11:23-13:00

2 stops17h 37m

£773

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 19 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.

Reviews of airlines servicing Washington

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

Delta

8.0

Very Good

7,974 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,974 reviews

Delta

8.0

Very Good

7,974 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,366 reviews

Delta

8.0

Very Good

7,974 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,974 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Aer Lingus

7.1

Good

1,141 reviews

Delta

8.0

Very Good

7,974 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Icelandair

7.0

Good

514 reviews

Delta

8.0

Very Good

7,974 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 £490. However, be on the lookout for offers from Aer Lingus and Lufthansa, 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

Wenatchee Pangborn Field Airport car hire

Spokane 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£430	Average£606	FlexibilityNo cancel fee	On-time75%	Search KLM flights
British Airways	Cheapest£432	Average£778	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Air France	Cheapest£443	Average£507	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Lufthansa	Cheapest£451	Average£578	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Icelandair	Cheapest£471	Average£723	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£645	Average£759	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 £341

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 1/9. 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 2 July 2025.

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 2 July 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 2 July 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 2 July 2025.

Reviews of airlines servicing Washington

Read through reviews of airlines operating flights from Glasgow Intl Airport to Washington, such as Delta, KLM, andAmerican Airlines. 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.

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 2 July 2025.