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Cheap flights from Glasgow Intl Airport to Washington, D.C. from £240

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — WAS
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Glasgow Intl to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 June 2025.

Round-trip from

£449

One-way from

£240

Popular in

July

Cheapest in

February

Average price

£552
Icelandair
  • Icelandair
  • 5/9-19/9
  • 2 total stops
  • 22h 00m total
  • Glasgow to Washington, D.C.
14/9
  • 14/9
  • 3 total stops
  • 39h 03m total
  • Glasgow to Washington, D.C.
Highest demand for flights based on searches. 14% potential increase in price (£80 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in June 2025

Find flight deals from Glasgow Intl to Washington, D.C.

Cheapest flights from Glasgow Intl to Washington, D.C.
Explore the most affordable flight options available from Glasgow Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Fri 5/914:20GLA - BWI
1 stop10h 05mIcelandair
Fri 19/920:30BWI - GLA
1 stop11h 55mIcelandair
Deal found 12/6£449
Fri 5/914:20GLA - IAD
1 stop10h 00mIcelandair
Fri 19/923:15IAD - GLA
1 stop9h 10mIcelandair
Deal found 12/6£453
Sun 7/907:30GLA - BWI
2 stops15h 10mMultiple Airlines
Sun 21/918:50BWI - GLA
2 stops17h 55mMultiple Airlines
Deal found 11/6£506
Thu 6/1111:25GLA - BWI
1 stop12h 20mBritish Airways
Wed 12/1120:30BWI - GLA
1 stop11h 20mBritish Airways
Deal found 11/6£516
Thu 6/1106:05GLA - IAD
1 stop14h 40mKLM
Wed 12/1117:35IAD - GLA
1 stop9h 55mKLM
Deal found 11/6£537
Thu 6/1109:05GLA - IAD
1 stop11h 40mDelta
Wed 12/1113:00IAD - GLA
2 stops14h 30mDelta
Deal found 12/6£538
Thu 6/1106:05GLA - DCA
2 stops15h 27mDelta
Wed 12/1111:00DCA - GLA
2 stops16h 30mDelta
Deal found 11/6£542
Thu 6/1106:05GLA - BWI
2 stops15h 36mDelta
Wed 12/1117:30BWI - GLA
2 stops14h 10mDelta
Deal found 11/6£542
Thu 10/708:10GLA - IAD
1 stop12h 40mMultiple Airlines
Thu 17/717:20IAD - GLA
1 stop9h 45mMultiple Airlines
Deal found 12/6£555
Fri 5/911:30GLA - IAD
1 stop11h 00mBritish Airways
Fri 19/922:40IAD - GLA
1 stop13h 00mBritish Airways
Deal found 11/6£562
Fri 5/907:00GLA - BWI
1 stop17h 35mAmerican Airlines
Fri 19/918:44BWI - GLA
2 stops19h 11mAmerican Airlines
Deal found 11/6£581
Thu 19/608:55GLA - IAD
1 stop11h 40mVirgin Atlantic
Wed 2/717:25IAD - GLA
1 stop14h 35mVirgin Atlantic
Deal found 11/6£591

Cheapflights Fare Finder

Customise your flight search to find flights from Glasgow Intl to Washington, D.C. 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 13 June 2025.
Use the filters below to find and compare flights from Glasgow Intl Airport to Washington, D.C. that are best for you.

Fly from

Glasgow Intl

Fly to

Washington, D.C.

Route

Depart

Return

Price

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Fri 5/9

14:20-19:25

1 stop10h 05m

Baltimore/Washington

Fri 19/9

20:30-13:25

1 stop11h 55m

£449

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Fri 5/9

14:20-19:20

1 stop10h 00m

Washington, D.C. Dulles Intl

Fri 19/9

23:15-13:25

1 stop9h 10m

£453

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Sun 7/9

07:30-17:40

2 stops15h 10m

Baltimore/Washington

Sun 21/9

18:50-17:45

2 stops17h 55m

£506

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Thu 6/11

11:25-18:45

1 stop12h 20m

Baltimore/Washington

Wed 12/11

20:30-12:50

1 stop11h 20m

£516

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 6/11

09:05-15:45

1 stop11h 40m

Washington, D.C. Dulles Intl

Wed 12/11

13:00-08:30

2 stops14h 30m

£537

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Thu 6/11

06:05-16:32

2 stops15h 27m

Washington, D.C. Reagan-National

Wed 12/11

11:00-08:30

2 stops16h 30m

£542

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Thu 6/11

06:05-16:41

2 stops15h 36m

Baltimore/Washington

Wed 12/11

17:30-12:40

2 stops14h 10m

£542

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 10/7

08:10-15:50

1 stop12h 40m

Washington, D.C. Dulles Intl

Thu 17/7

17:20-08:05

1 stop9h 45m

£555

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Fri 5/9

11:30-17:30

1 stop11h 00m

Washington, D.C. Dulles Intl

Fri 19/9

22:40-16:40

1 stop13h 00m

£562

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Fri 5/9

07:00-19:35

1 stop17h 35m

Baltimore/Washington

Fri 19/9

18:44-18:55

2 stops19h 11m

£581

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 40 results
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Best time to book a flight from Glasgow Intl to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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, D.C.

What is the cheapest month to book a flight from Glasgow Intl Airport to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. (average of £565). Flying from Glasgow Intl Airport to Washington, D.C. 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 WAS?

Find hourly flight availability from Glasgow Intl to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

One of the essential ways to save on airfare from Glasgow Intl Airport to Washington, D.C. is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 8% on airfare.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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, D.C.. Reviews last updated 13 June 2025.
See what other customers who have flown with Delta, KLM and Finnair from Glasgow to Washington, D.C. have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!
8.0
Very Good

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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

Find useful and relevant information for your journey from Glasgow Intl to Washington, D.C.. 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 flying from Glasgow Intl Airport to Washington, D.C. round-trip?

    Icelandair, at £449, was found to be the cheapest airline from Glasgow Intl Airport to Washington, D.C..Alternate airlines flying return to your destination include British Airways and Delta. You may be able to fly from Glasgow Intl Airport to Washington, D.C. for 29% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Glasgow Intl Airport to Washington, D.C. one-way?

    The cheapet airlines for a one-way flight from Glasgow Intl Airport to Washington, D.C. are Icelandair (£440), Aer Lingus (£475), and British Airways (£551).

  • What are the most popular routes from Glasgow Intl Airport to Washington, D.C.?

  • Can I find deals for flights from Glasgow Intl to Washington, D.C. that include hotel bookings?

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

  • How can I find direct flights from Glasgow Intl to Washington, D.C.?

    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, D.C..

  • Can I find deals for business class flights from Glasgow Intl to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Glasgow Intl to Washington, D.C. 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 Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. (average of £565). Flying from Glasgow Intl Airport to Washington, D.C. 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

Travelling to a place near Glasgow Intl Airport?

Book flights to Glasgow Intl Airport if you plan to visit one of these locations
Silver Spring
Arlington
Woodbridge
Hanover
Oxon Hill
College Park
Laurel
Tysons

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Glasgow Intl to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Glasgow Intl to Washington, D.C.

Discover the top 4 airlines that operate flights from Glasgow Intl to Washington, D.C.. 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£442Average£607FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£499Average£597FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£512Average£619FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapest£546Average£569FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Glasgow Intl to Washington, D.C.?

Cheapflights helps you search for flights from Glasgow Intl to Washington, D.C. via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Glasgow Intl to Washington, D.C.?

Cheapflights simply makes it quick and affordable to book flights from Glasgow Intl to Washington, D.C. by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Glasgow Intl to Washington, D.C. with no change fees?

Yes, we can. To see specific flights from Glasgow Intl to Washington, D.C. 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, D.C. become cheaper?

Yes, Cheapflights offers price alerts on Glasgow Intl to Washington, D.C. 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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