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Cheap flights from Glasgow Intl Airport to Washington from $440

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Glasgow Intl Airport to Washington departing on 6/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Glasgow Intl Airport to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
12:35 pm - 5:00 pm
GLA
-
SEA
12h 25m1 stop
Icelandair Logo
2:35 pm - 9:55 am
SEA
-
GLA
11h 20m1 stop
$550Icelandair
Tue, Feb 17 - Sat, Feb 28
Icelandair Logo
12:35 pm - 5:00 pm
GLA
-
SEA
12h 25m1 stop
Icelandair Logo
2:35 pm - 9:55 am
SEA
-
GLA
11h 20m1 stop
$557Icelandair
Tue, Feb 17 - Sat, Feb 28
Icelandair Logo
12:35 pm - 5:00 pm
GLA
-
SEA
12h 25m1 stop
Icelandair Logo
3:35 pm - 9:55 am
SEA
-
GLA
11h 20m1 stop
$581Icelandair
Fri, Feb 20 - Mon, Mar 9
Multiple Airlines Logo
7:00 am - 5:00 pm
GLA
-
SEA
18h 00m2 stops
Multiple Airlines Logo
2:35 pm - 4:15 pm
SEA
-
GLA
17h 40m2 stops
$600Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
KLM Logo
10:40 am - 11:40 am
GLA
-
SEA
33h 00m1 stop
KLM Logo
3:05 pm - 4:35 pm
SEA
-
GLA
17h 30m1 stop
$650KLM
Tue, Feb 3 - Tue, Feb 10
KLM Logo
10:40 am - 11:50 am
GLA
-
SEA
33h 10m1 stop
KLM Logo
3:10 pm - 10:10 pm
SEA
-
GLA
23h 00m1 stop
$651KLM
Mon, Jan 19 - Mon, Jan 26
Multiple Airlines Logo
10:40 am - 11:50 am
GLA
-
SEA
33h 10m1 stop
Multiple Airlines Logo
8:00 am - 9:55 am
SEA
-
GLA
17h 55m2 stops
$655Multiple Airlines
Mon, Jan 19 - Mon, Jan 26
Lufthansa Logo
6:00 am - 8:56 pm
GLA
-
SEA
22h 56m2 stops
Lufthansa Logo
7:00 am - 12:05 pm
SEA
-
GLA
21h 05m2 stops
$657Lufthansa
Tue, Feb 17 - Sat, Feb 28
British Airways Logo
7:05 pm - 3:55 pm
GLA
-
PDX
28h 50m1 stop
British Airways Logo
5:45 pm - 6:15 pm
PDX
-
GLA
16h 30m1 stop
$851British Airways
Thu, Feb 19 - Mon, Feb 23
British Airways Logo
7:05 pm - 3:55 pm
GLA
-
PDX
28h 50m1 stop
British Airways Logo
5:45 pm - 6:15 pm
PDX
-
GLA
16h 30m1 stop
$854British Airways
Thu, Feb 19 - Mon, Feb 23

KLM flights from Glasgow Intl Airport to State of Washington

Our best KLM deals on Glasgow Intl Airport to State of Washington flight tickets
KLM
Jan 19
GLA10:40 amGlasgow Intl
33h 10m
1 stop
SEA11:50 amSeattle/Tacoma Intl
Jan 26
SEA3:10 pmSeattle/Tacoma Intl
23h 00m
1 stop
GLA10:10 pmGlasgow Intl
$651
Find similar
KLM
Jan 19
GLA5:20 pmGlasgow Intl
37h 05m
2 stops
SEA10:25 pmSeattle/Tacoma Intl
Jan 26
SEA7:10 amSeattle/Tacoma Intl
18h 45m
2 stops
GLA9:55 amGlasgow Intl
$682
Find similar
KLM
Feb 20
GLA6:05 amGlasgow Intl
13h 35m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 9
SEA1:45 pmSeattle/Tacoma Intl
16h 00m
2 stops
GLA12:45 pmGlasgow Intl
$690
Find similar

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
Mar 4
GLA12:00 pmGlasgow Intl
14h 20m
1 stop
SEA6:20 pmSeattle/Tacoma Intl
Mar 8
SEA1:37 pmSeattle/Tacoma Intl
17h 58m
2 stops
GLA2:35 pmGlasgow Intl
$691
Find similar
British Airways
Mar 4
GLA12:00 pmGlasgow Intl
14h 20m
1 stop
SEA6:20 pmSeattle/Tacoma Intl
Mar 8
SEA1:37 pmSeattle/Tacoma Intl
20h 03m
2 stops
GLA4:40 pmGlasgow Intl
$694
Find similar
British Airways
Mar 4
GLA10:55 amGlasgow Intl
19h 20m
2 stops
SEA10:15 pmSeattle/Tacoma Intl
Mar 8
SEA1:37 pmSeattle/Tacoma Intl
20h 03m
2 stops
GLA4:40 pmGlasgow Intl
$703
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Glasgow Intl Airport to State of Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 23, 2025.
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

Tue 2/17

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Sat 2/28

2:35 pm-9:55 am

1 stop11h 20m

$550

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 2/17

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Sat 2/28

2:35 pm-9:55 am

1 stop11h 20m

$557

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Fri 2/20

12:35 pm-5:00 pm

1 stop12h 25m

Seattle/Tacoma Intl

Mon 3/9

3:35 pm-9:55 am

1 stop11h 20m

$581

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 2/3

7:00 am-5:00 pm

2 stops18h 00m

Seattle/Tacoma Intl

Tue 2/10

2:35 pm-4:15 pm

2 stops17h 40m

$600

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 2/3

10:40 am-11:40 am

1 stop33h 00m

Seattle/Tacoma Intl

Tue 2/10

3:05 pm-4:35 pm

1 stop17h 30m

$650

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 1/19

10:40 am-11:50 am

1 stop33h 10m

Seattle/Tacoma Intl

Mon 1/26

3:10 pm-10:10 pm

1 stop23h 00m

$651

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Mon 1/19

10:40 am-11:50 am

1 stop33h 10m

Seattle/Tacoma Intl

Mon 1/26

8:00 am-9:55 am

2 stops17h 55m

$655

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Tue 2/17

6:00 am-8:56 pm

2 stops22h 56m

Seattle/Tacoma Intl

Sat 2/28

7:00 am-12:05 pm

2 stops21h 05m

$657

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Thu 2/19

7:05 pm-3:55 pm

1 stop28h 50m

Portland

Mon 2/23

5:45 pm-6:15 pm

1 stop16h 30m

$851

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Thu 2/19

7:05 pm-3:55 pm

1 stop28h 50m

Portland

Mon 2/23

5:45 pm-6:15 pm

1 stop16h 30m

$854

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

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 $656. 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 $696.

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 $822 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 36% 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

12h 25m

Direct flights

None
The fastest flight from Glasgow Intl Airport to State of Washington takes 12h 25m
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

  • 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?

  • 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 AirwaysPriceFrom $421Free CancellationRating
6.7
7,605 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.

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