What is the cheapest airline that flies from Glasgow Intl to Washington?

Icelandair, Iberia, and British Airways are the most popular carriers operating from Glasgow Intl to Washington

How many operators does momondo search for flights from Glasgow Intl Airport to Washington?

The number of operators available for flights from Glasgow Intl Airport to Washington is 1 as of November 2025.

How old do you have to be to fly from Glasgow Intl Airport to Washington?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Glasgow Intl Airport to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$428 Cheap Flights from Glasgow Intl Airport to State of Washington in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:35 pm - 5:00 pmGLA-SEA

12h 25m1 stop

3:35 pm - 9:55 amSEA-GLA

11h 20m1 stop

$625Icelandair

Find Deal

Thu, Mar 5 - Mon, Mar 9

2:20 pm - 5:50 pmGLA-SEA

11h 30m1 stop

3:45 pm - 1:25 pmSEA-GLA

13h 40m1 stop

$700Icelandair

Find Deal

Tue, Apr 21 - Tue, May 19

1:20 pm - 6:20 pmGLA-SEA

13h 00m1 stop

8:05 pm - 4:00 pmSEA-GLA

11h 55m1 stop

$788Aer Lingus

Find Deal

Fri, Dec 5 - Fri, Dec 12

1:45 pm - 11:30 amGLA-SEA

29h 45m1 stop

1:48 pm - 2:30 pmSEA-GLA

17h 42m2 stops

$836American Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

9:55 am - 11:30 amGLA-SEA

33h 35m1 stop

1:48 pm - 2:30 pmSEA-GLA

17h 42m2 stops

$838American Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

12:35 pm - 5:00 pmGLA-SEA

12h 25m1 stop

8:44 am - 9:55 amSEA-GLA

17h 11m2 stops

$903Multiple Airlines

Find Deal

Fri, Dec 5 - Fri, Dec 12

10:55 am - 5:40 pmGLA-PDX

14h 45m1 stop

7:30 pm - 4:45 pmPDX-GLA

13h 15m1 stop

$911British Airways

Find Deal

Tue, Apr 21 - Tue, May 12

8:20 pm - 3:55 pmGLA-PDX

27h 35m1 stop

6:45 pm - 4:35 pmPDX-GLA

14h 50m1 stop

$930British Airways

Find Deal

Thu, Mar 5 - Mon, Mar 9

5:20 pm - 11:50 amGLA-SEA

26h 30m1 stop

3:05 pm - 10:10 pmSEA-GLA

23h 05m1 stop

$960Multiple Airlines

Find Deal

Mon, Dec 15 - Mon, Dec 22

4:30 pm - 11:25 pmGLA-SEA

38h 55m2 stops

12:38 am - 11:30 amSEA-GLA

26h 52m2 stops

$1,061Aer Lingus

Find Deal

Fri, Dec 5 - Thu, Dec 11

Icelandair flights from Glasgow Intl Airport to State of Washington

Our best Icelandair deals on Glasgow Intl Airport to State of Washington flight tickets

Icelandair

Mar 5

GLA12:35 pmGlasgow Intl

12h 25m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Mar 9

SEA3:35 pmSeattle/Tacoma Intl

11h 20m

1 stop

GLA9:55 amGlasgow Intl

$625

Find similar

Icelandair

Apr 21

GLA2:20 pmGlasgow Intl

11h 30m

1 stop

SEA5:50 pmSeattle/Tacoma Intl

May 19

SEA3:45 pmSeattle/Tacoma Intl

13h 40m

1 stop

GLA1:25 pmGlasgow Intl

$700

Find similar

Icelandair

Mar 5

GLA12:35 pmGlasgow Intl

12h 25m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Mar 9

SEA3:35 pmSeattle/Tacoma Intl

11h 20m

1 stop

GLA9:55 amGlasgow Intl

$798

Find similar

American Airlines flights from Glasgow Intl Airport to State of Washington

Our best American Airlines deals on Glasgow Intl Airport to State of Washington flight tickets

American Airlines

Mar 5

GLA1:45 pmGlasgow Intl

29h 45m

1 stop

SEA11:30 amSeattle/Tacoma Intl

Mar 9

SEA1:48 pmSeattle/Tacoma Intl

17h 42m

2 stops

GLA2:30 pmGlasgow Intl

$836

Find similar

American Airlines

Mar 5

GLA9:55 amGlasgow Intl

33h 35m

1 stop

SEA11:30 amSeattle/Tacoma Intl

Mar 9

SEA1:48 pmSeattle/Tacoma Intl

17h 42m

2 stops

GLA2:30 pmGlasgow Intl

$838

Find similar

American Airlines

Mar 5

GLA8:40 amGlasgow Intl

22h 52m

2 stops

SEA11:32 pmSeattle/Tacoma Intl

Mar 9

SEA7:00 amSeattle/Tacoma Intl

24h 30m

2 stops

GLA2:30 pmGlasgow Intl

$841

Find similar

momondo 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

Thu 3/5

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Mon 3/9

3:35 pm-9:55 am

1 stop11h 20m

$625

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 4/21

2:20 pm-5:50 pm

1 stop11h 30m

Seattle/Tacoma Intl

Tue 5/19

3:45 pm-1:25 pm

1 stop13h 40m

$700

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 12/5

1:20 pm-6:20 pm

1 stop13h 00m

Seattle/Tacoma Intl

Fri 12/12

8:05 pm-4:00 pm

1 stop11h 55m

$788

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 3/5

1:45 pm-11:30 am

1 stop29h 45m

Seattle/Tacoma Intl

Mon 3/9

1:48 pm-2:30 pm

2 stops17h 42m

$836

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 3/5

9:55 am-11:30 am

1 stop33h 35m

Seattle/Tacoma Intl

Mon 3/9

1:48 pm-2:30 pm

2 stops17h 42m

$838

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 12/5

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Fri 12/12

8:44 am-9:55 am

2 stops17h 11m

$903

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Tue 4/21

10:55 am-5:40 pm

1 stop14h 45m

Portland

Tue 5/12

7:30 pm-4:45 pm

1 stop13h 15m

$911

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Thu 3/5

8:20 pm-3:55 pm

1 stop27h 35m

Portland

Mon 3/9

6:45 pm-4:35 pm

1 stop14h 50m

$930

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 12/15

5:20 pm-11:50 am

1 stop26h 30m

Seattle/Tacoma Intl

Mon 12/22

3:05 pm-10:10 pm

1 stop23h 05m

$960

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 12/5

4:30 pm-11:25 pm

2 stops38h 55m

Seattle/Tacoma Intl

Thu 12/11

12:38 am-11:30 am

2 stops26h 52m

$1,061

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Glasgow Intl Airport to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from Glasgow Intl Airport, with most prices found around $697. If you aren’t able to travel to State of Washington during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $698.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Glasgow Intl Airport to State of Washington is on a Monday. Travelers who choose to depart for State of Washington on a Monday will often find tickets for as low as $641. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Glasgow Intl Airport to State of Washington for around $1,356.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $924. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,024 on average. Flights to State of Washington from Glasgow Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Glasgow Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $839 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Glasgow Intl Airport for as low as $759 on momondo.

Can stopping save me money on Glasgow Intl Airport to State of Washington flights?

You could potentially save up to 33% on your flight if you consider stops on a Glasgow Intl Airport to State of Washington flight.

Cheap Glasgow Intl Airport to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Glasgow Intl Airport to State of Washington

Direct flights	None

There are no direct flights from Glasgow Intl Airport to State of Washington. There are no popular flight routes from Glasgow Intl Airport to State of Washington.

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When did momondo last update prices for flights from Glasgow Intl Airport to Washington?
Prices for flights from Glasgow Intl Airport to Washington refresh daily.
How many operators does momondo search for flights from Glasgow Intl Airport to Washington?
The number of operators available for flights from Glasgow Intl Airport to Washington is 1 as of November 2025.
How old do you have to be to fly from Glasgow Intl Airport to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Glasgow Intl Airport to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Glasgow Intl Airport to State of Washington

Compare and see reviews for airlines that fly from Glasgow Intl Airport to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 7,500 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Glasgow to Washington?

Finding the right flight to Washington from Glasgow is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington quick and easy, saving you time and money.

Can I find flights from Glasgow to Washington with flexible booking policies on momondo?

All flight searches from Glasgow to Washington on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Glasgow to Washington?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington from Glasgow.

I’m not ready to book a flight from Glasgow to Washington right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington from Glasgow. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your State of Washington trip

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Cheap flights from Glasgow Intl Airport to Washington from $428

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Big names and deals

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Find the cheapest flights from Glasgow Intl Airport to Washington

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Icelandair flights from Glasgow Intl Airport to State of Washington

Our best Icelandair deals on Glasgow Intl Airport to State of Washington flight tickets

American Airlines flights from Glasgow Intl Airport to State of Washington

Our best American Airlines deals on Glasgow Intl Airport to State of Washington flight tickets

momondo Fare Finder

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

See travel insights to Washington from

How to get the cheapest flight ticket from Glasgow Intl Airport to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

How far in advance should I book a flight to State of Washington?

Can stopping save me money on Glasgow Intl Airport to State of Washington flights?

You could potentially save up to 33% on your flight if you consider stops on a Glasgow Intl Airport to State of Washington flight.

What is the cheapest airline that flies from Glasgow Intl to Washington?

Icelandair, Iberia, and British Airways are the most popular carriers operating from Glasgow Intl to Washington

Cheap Glasgow Intl Airport to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Glasgow Intl Airport to State of Washington

Direct flights

When did momondo last update prices for flights from Glasgow Intl Airport to Washington?

How many operators does momondo search for flights from Glasgow Intl Airport to Washington?

How old do you have to be to fly from Glasgow Intl Airport to Washington?

What documentation or ID do you need to fly to Washington?

Best airlines flying from Glasgow Intl Airport to State of Washington

Compare and see reviews for airlines that fly from Glasgow Intl Airport to State of Washington with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Glasgow to Washington?

Can I find flights from Glasgow to Washington with flexible booking policies on momondo?

How can momondo help me find flights from Glasgow to Washington?

I’m not ready to book a flight from Glasgow to Washington right now. Can momondo alert me if prices change?

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

Popular cities in Washington

Popular flights according to clicks in the last 7 days on momondo