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

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

Which airlines fly to State of Washington?

Icelandair, British Airways and Aer Lingus are the top three most popular airlines that fly to State of Washington from Glasgow Intl Airport according to our data. Icelandair is the first choice among our users, with 59% of people opting to fly with this airline when travelling to State of Washington. Keep in mind that there are 4 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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

As of May 2026, there are 4 operators available to choose from for flights from Glasgow Intl Airport to Washington.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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.

£330 Cheap Flights from Glasgow Intl Airport to State of Washington in 2026

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Find the cheapest flights from Glasgow Intl Airport to Washington

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

14:20 - 17:55

GLA

SEA

11h 35m

1 stop

19:00 - 13:25

SEA

GLA

10h 25m

1 stop

£586Icelandair

Thu, 4 Jun - Mon, 8 Jun

14:20 - 17:55

GLA

SEA

11h 35m

1 stop

19:00 - 13:25

SEA

GLA

10h 25m

1 stop

£591Icelandair

Thu, 4 Jun - Mon, 8 Jun

14:20 - 17:55

GLA

SEA

11h 35m

1 stop

19:00 - 13:25

SEA

GLA

10h 25m

1 stop

£592Icelandair

Thu, 4 Jun - Mon, 8 Jun

14:20 - 17:55

GLA

SEA

11h 35m

1 stop

19:00 - 13:25

SEA

GLA

10h 25m

1 stop

£594Icelandair

Thu, 4 Jun - Mon, 8 Jun

14:20 - 20:40

GLA

SEA

14h 20m

1 stop

15:35 - 09:55

SEA

GLA

11h 20m

1 stop

£617Icelandair

Tue, 6 Oct - Tue, 27 Oct

12:00 - 17:10

GLA

SEA

13h 10m

1 stop

19:10 - 19:00

SEA

GLA

15h 50m

1 stop

£635Aer Lingus

Fri, 5 Jun - Mon, 22 Jun

11:10 - 17:10

GLA

SEA

14h 00m

1 stop

19:10 - 21:20

SEA

GLA

18h 10m

1 stop

£636Multiple Airlines

Sat, 6 Jun - Sun, 14 Jun

11:10 - 17:10

GLA

SEA

14h 00m

1 stop

19:10 - 21:20

SEA

GLA

18h 10m

1 stop

£639Multiple Airlines

Sat, 6 Jun - Sun, 28 Jun

06:00 - 11:10

GLA

PDX

13h 10m

1 stop

09:40 - 16:10

PDX

GLA

22h 30m

2 stops

£786Delta

Wed, 16 Sep - Wed, 30 Sep

06:00 - 11:10

GLA

PDX

13h 10m

1 stop

06:15 - 08:25

PDX

GLA

18h 10m

2 stops

£789Delta

Wed, 16 Sep - Wed, 30 Sep

British Airways flights from Glasgow Intl Airport to State of Washington

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

British Airways

13 Sept

GLA21:15Glasgow Intl

22h 20m

1 stop

SEA11:35Seattle/Tacoma Intl

22 Sept

SEA20:20Seattle/Tacoma Intl

12h 25m

1 stop

GLA16:45Glasgow Intl

£734

British Airways

13 Sept

GLA13:30Glasgow Intl

30h 05m

1 stop

SEA11:35Seattle/Tacoma Intl

23 Sept

SEA08:20Seattle/Tacoma Intl

18h 00m

2 stops

GLA10:20Glasgow Intl

£739

British Airways

6 Oct

GLA05:55Glasgow Intl

13h 40m

1 stop

SEA11:35Seattle/Tacoma Intl

27 Oct

SEA15:10Seattle/Tacoma Intl

16h 25m

2 stops

GLA14:35Glasgow Intl

£747

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

4 Jun

GLA14:20Glasgow Intl

11h 35m

1 stop

SEA17:55Seattle/Tacoma Intl

8 Jun

SEA19:00Seattle/Tacoma Intl

10h 25m

1 stop

GLA13:25Glasgow Intl

£586

Icelandair

4 Jun

GLA14:20Glasgow Intl

11h 35m

1 stop

SEA17:55Seattle/Tacoma Intl

8 Jun

SEA19:00Seattle/Tacoma Intl

10h 25m

1 stop

GLA13:25Glasgow Intl

£591

Icelandair

4 Jun

GLA14:20Glasgow Intl

11h 35m

1 stop

SEA17:55Seattle/Tacoma Intl

8 Jun

SEA19:00Seattle/Tacoma Intl

10h 25m

1 stop

GLA13:25Glasgow Intl

£592

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

Cheapest return flight

Fastest return journey

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 4/6

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

Mon 8/6

19:00-13:25

1 stop10h 25m

£586

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 4/6

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

Mon 8/6

19:00-13:25

1 stop10h 25m

£591

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 4/6

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

Mon 8/6

19:00-13:25

1 stop10h 25m

£592

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 4/6

14:20-17:55

1 stop11h 35m

Seattle/Tacoma Intl

Mon 8/6

19:00-13:25

1 stop10h 25m

£594

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 6/10

14:20-20:40

1 stop14h 20m

Seattle/Tacoma Intl

Tue 27/10

15:35-09:55

1 stop11h 20m

£617

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 5/6

12:00-17:10

1 stop13h 10m

Seattle/Tacoma Intl

Mon 22/6

19:10-19:00

1 stop15h 50m

£635

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 6/6

11:10-17:10

1 stop14h 00m

Seattle/Tacoma Intl

Sun 14/6

19:10-21:20

1 stop18h 10m

£636

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 6/6

11:10-17:10

1 stop14h 00m

Seattle/Tacoma Intl

Sun 28/6

19:10-21:20

1 stop18h 10m

£639

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 16/9

06:00-11:10

1 stop13h 10m

Portland

Wed 30/9

09:40-16:10

2 stops22h 30m

£786

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 16/9

06:00-11:10

1 stop13h 10m

Portland

Wed 30/9

06:15-08:25

2 stops18h 10m

£789

Flights are sorted by cheapest return flights first.

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?

If you aren’t able to travel to State of Washington during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £432.

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

Fastest flight time	11h 35m
Direct flights	None

The fastest flight from Glasgow Intl Airport to State of Washington takes 11h 35m

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.

Search flight deals

Frequently asked questions about flying from Glasgow Intl Airport to Washington

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?
As of May 2026, there are 4 operators available to choose from for flights from Glasgow Intl Airport to Washington.
How old do you have to be to fly from Glasgow Intl Airport to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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
Icelandair	PriceFrom £452	Free Cancellation	Rating 7.0 654 reviews	Search Icelandair flights
KLM	PriceFrom £501	Free Cancellation	Rating 7.8 1,517 reviews	Search KLM flights
British Airways	PriceFrom £511	Free Cancellation	Rating 6.7 7,982 reviews	Search British Airways flights
Aer Lingus	PriceFrom £647	Free Cancellation	Rating 7.3 1,563 reviews	Search Aer Lingus flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Glasgow to Washington . Millions of users trust and use momondo every year so you are in good hands.

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?

momondo provides multiple filters to help you find the best flight to Washington from Glasgow. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Glasgow to Washington flights. All you need is a valid email address and we will do the rest; it is that quick and easy.