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Cheap flights from Glasgow to Washington from £314

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — SEA
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Glasgow to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow to Washington
Explore the most affordable flight options available from Glasgow to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2025.

Sun 14/1212:00GLA - SEA
1 stop14h 20mAer Lingus
Sat 24/113:35SEA - GLA
2 stops18h 25mAer Lingus
Deal found 19/11£693
Wed 17/1206:05GLA - SEA
2 stops18h 16mKLM
Sat 24/115:10SEA - GLA
1 stop34h 45mKLM
Deal found 19/11£705
Wed 17/1206:05GLA - SEA
2 stops18h 16mDelta
Sat 24/106:05SEA - GLA
2 stops19h 50mDelta
Deal found 19/11£711
Wed 3/1212:35GLA - PDX
1 stop12h 25mIcelandair
Tue 9/1214:45PDX - GLA
1 stop11h 10mIcelandair
Deal found 18/11£713
Sat 6/1206:35GLA - SEA
1 stop12h 55mMultiple Airlines
Tue 23/1218:50SEA - GLA
1 stop14h 05mMultiple Airlines
Deal found 19/11£717
Sat 6/1206:35GLA - SEA
1 stop12h 55mBritish Airways
Tue 23/1211:20SEA - GLA
2 stops19h 15mBritish Airways
Deal found 19/11£728
Sun 14/1209:20GLA - SEA
2 stops22h 05mBritish Airways
Sat 24/108:04SEA - GLA
2 stops22h 51mBritish Airways
Deal found 19/11£748
Tue 2/1219:10GLA - PDX
2 stops32h 00mBritish Airways
Tue 9/1211:37PDX - GLA
2 stops20h 13mBritish Airways
Deal found 18/11£749
Tue 2/1215:20GLA - PDX
2 stops38h 04mIberia
Wed 10/1205:30PDX - GLA
2 stops44h 00mIberia
Deal found 18/11£774
Thu 18/1212:35GLA - SEA
1 stop12h 25mIcelandair
Sat 24/114:35SEA - GLA
1 stop11h 20mIcelandair
Deal found 19/11£780
Wed 17/1210:55GLA - SEA
1 stop14h 00mBritish Airways
Sat 24/113:35SEA - GLA
1 stop13h 10mBritish Airways
Deal found 19/11£793
Tue 2/1213:25GLA - PDX
1 stop30h 00mKLM
Wed 10/1213:25PDX - GLA
1 stop35h 05mKLM
Deal found 18/11£794

Cheap flight deals from Glasgow to Washington

Keep the following information in mind while searching for Glasgow to Washington flight deals. Data was last updated 20 November 2025.

Round-trip from

£642

One-way from

£314

Popular in

July

Cheapest in

January

Average price

£573
American Airlines
  • American Airlines
  • 29/1-2/2
  • 2 total stops
  • 45h 45m total
  • Glasgow to Washington
Search Deals
13/4
  • 13/4
  • 3 total stops
  • 48h 34m total
  • Glasgow to Washington
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£95 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow to 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, Cheapflights users made 858,174 searches. Data last updated 20 November 2025.
Use the filters below to find and compare flights from Glasgow to Washington that are best for you.

Fly from

Glasgow

Fly to

Washington

Route

Depart

Return

Price

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 29/1

11:30-11:30

1 stop32h 00m

Seattle/Tacoma Intl

Mon 2/2

08:04-13:05

2 stops21h 01m

£642

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Thu 29/1

09:55-16:55

1 stop15h 00m

Seattle/Tacoma Intl

Mon 2/2

08:04-09:50

2 stops17h 46m

£643

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 17/12

06:05-16:21

2 stops18h 16m

Seattle/Tacoma Intl

Sat 24/1

15:10-09:55

1 stop34h 45m

£705

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Wed 17/12

06:05-16:21

2 stops18h 16m

Seattle/Tacoma Intl

Sat 24/1

06:05-09:55

2 stops19h 50m

£711

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Thu 5/3

13:45-15:55

1 stop34h 10m

Portland

Mon 9/3

18:45-14:30

1 stop12h 45m

£712

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Fri 16/1

08:15-20:27

2 stops20h 12m

Portland

Tue 20/1

06:00-14:35

2 stops24h 35m

£716

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 6/12

06:35-11:30

1 stop12h 55m

Seattle/Tacoma Intl

Tue 23/12

18:50-16:55

1 stop14h 05m

£717

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Fri 16/1

10:40-15:55

1 stop13h 15m

Portland

Tue 20/1

07:38-10:45

2 stops19h 07m

£726

GlasgowSeattle

GLA - SEA

GLASEA

Glasgow Intl

Sat 6/12

06:35-11:30

1 stop12h 55m

Seattle/Tacoma Intl

Tue 23/12

11:20-14:35

2 stops19h 15m

£728

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 3/12

12:35-17:00

1 stop12h 25m

Portland

Tue 9/12

10:40-09:55

2 stops15h 15m

£733

Flights are sorted by cheapest return flights first.

Deals found on 18/11

Showing 1-10 of 34 results
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Best time to book a flight from Glasgow to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Glasgow 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 to Washington

What is the cheapest month to book a flight from Glasgow to State of Washington?

Currently, March is the cheapest month in which you can book a flight from Glasgow to State of Washington (average of £369). Flying from Glasgow to State of Washington in December is currently the most expensive (average of £610). 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?

Find hourly flight availability from Glasgow 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 20 November 2025.

When flying from Glasgow to State of Washington, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 25% versus a flight in the afternoon.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated 20 November 2025.
Read reviews from past customers who have flown with KLM, Aer Lingus, andIcelandair from Glasgow to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,412 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Aer Lingus
7.2
Good
1,377 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Icelandair
7.0
Good
581 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,579 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,534 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Glasgow to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Glasgow to State of Washington?

    A quick flight from Glasgow to State of Washington can take about 12h 25m. American Airlines provides one of the quickest options available for as low as £733. The distance between Glasgow and State of Washington is about 4560 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Glasgow to State of Washington?

    When deciding which route to take from Glasgow to State of Washington consider Glasgow Intl - Seattle/Tacoma Intl, Glasgow Intl - Portland or Glasgow Intl - Yakima Air Terminal as they are the most popular.

  • Can I find deals for flights from Glasgow to Washington that include hotel bookings?

    Yes. In addition to deals on Glasgow to Washington flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Glasgow to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow to Washington.

  • Can I find deals for business class flights from Glasgow to Washington?

    Yes. Cheapflights offers flight deals from Glasgow 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 to State of Washington?

    Currently, March is the cheapest month in which you can book a flight from Glasgow to State of Washington (average of £369). Flying from Glasgow to State of Washington in December is currently the most expensive (average of £610). 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

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Alternative routes for Glasgow to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Glasgow to Washington

Discover the top 9 airlines that operate flights from Glasgow to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£429Average£619FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£433Average£601FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£451Average£672FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£469Average£727FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£473Average£623FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£474Average£616FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£507Average£678FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£521Average£626FlexibilityNo cancel feeOn-time77%
Search Air France flights
Aer LingusCheapest£661Average£829FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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 to Washington?

Deals for Glasgow 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 to Washington?

Cheapflights helps you find that perfect flight to Washington from Glasgow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Glasgow to Washington with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Glasgow to Washington, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Glasgow to Washington become cheaper?

Yes! Start tracking prices for Glasgow to Washington flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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