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Washington, D.C.

$372+ Cheap flights from Glasgow Intl (GLA) to Washington, D.C. (WAS)

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — WAS
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
1 adult, Economy
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Cheap 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 August 4, 2026.

This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Sat 9/1211:20 pm
IAD
-
GLA
1 stop9h 05m
Icelandair
Deal found 7/30$560
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Wed 9/168:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/30$599
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Thu 9/108:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/30$600
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Sun 9/138:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/30$605
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Tue 9/1511:20 pm
IAD
-
GLA
1 stop9h 05m
Icelandair
Deal found 7/30$607
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:20 pm
GLA
-
BWI
1 stop10h 05m
Icelandair
Tue 9/158:30 pm
BWI
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/30$614
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Thu 9/108:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/30$639
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:20 pm
GLA
-
BWI
1 stop10h 05m
Icelandair
Thu 9/1011:20 pm
BWI
-
GLA
1 stop9h 05m
Icelandair
Deal found 7/30$639
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Sun 9/138:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/30$644
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:20 pm
GLA
-
BWI
1 stop10h 05m
Icelandair
Mon 9/148:30 pm
BWI
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/30$644
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Thu 9/108:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/30$647
This deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:20 pm
GLA
-
IAD
1 stop10h 00m
Icelandair
Sun 9/138:30 pm
IAD
-
GLA
1 stop11h 55m
Icelandair
Deal found 7/30$652

Find 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 August 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$560

One-way from

$372

Popular in

April

Cheapest in

August

Average price

$705
Provider with most accurate pricing for Glasgow Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Glasgow Intl-Washington, D.C. (WAS) flights.
Search Deals
From Glasgow Intl to Washington, D.C. (WAS)
Search Deals
One-way flight from Glasgow Intl to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($66 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated August 4, 2026.
Use the filters below to find and compare flights from Glasgow Intl Airport to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 10/15

2:20 pm-7:20 pm

1 stop10h 00m

Washington, D.C. Dulles Intl

Tue 11/3

7:40 pm-9:55 am

1 stop9h 15m

$686

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Fri 9/4

7:25 am-7:57 pm

2 stops17h 32m

Washington, D.C. Reagan-National

Sun 9/13

6:00 am-9:40 am

2 stops22h 40m

$762

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Tue 10/13

2:20 pm-10:15 pm

1 stop12h 55m

Baltimore/Washington

Tue 11/3

7:40 pm-9:55 am

1 stop9h 15m

$803

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Fri 9/25

9:10 am-3:35 pm

1 stop11h 25m

Washington, D.C. Dulles Intl

Sun 10/11

5:30 pm-4:10 pm

1 stop17h 40m

$829

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Tue 10/6

2:20 pm-7:20 pm

1 stop10h 00m

Washington, D.C. Dulles Intl

Fri 10/23

8:30 pm-1:25 pm

1 stop11h 55m

$830
Quickest round-trip

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 8/26

2:20 pm-7:20 pm

1 stop10h 00m

Washington, D.C. Dulles Intl

Sat 8/29

11:20 pm-1:25 pm

1 stop9h 05m

$845

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sat 10/17

2:20 pm-7:20 pm

1 stop10h 00m

Washington, D.C. Dulles Intl

Mon 11/2

7:40 pm-9:55 am

1 stop9h 15m

$845

GlasgowWashington, D.C.

GLA - DCA

GLADCA

Glasgow Intl

Fri 9/18

9:10 am-11:02 pm

2 stops18h 52m

Washington, D.C. Reagan-National

Sun 10/4

5:35 pm-4:10 pm

2 stops17h 35m

$864

GlasgowBaltimore

GLA - BWI

GLABWI

Glasgow Intl

Wed 10/14

2:20 pm-7:25 pm

1 stop10h 05m

Baltimore/Washington

Sun 10/18

8:30 pm-1:25 pm

1 stop11h 55m

$865

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sun 9/6

10:10 am-5:25 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Tue 10/20

5:45 pm-9:40 am

1 stop10h 55m

$867

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/2

Showing 1-10 of 54 resultsSorted by cheapest first
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Compare providers for flights from Glasgow Intl to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Glasgow Intl to Washington, D.C. in August.
ProviderPrice AccuracyTrust Score*
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Glasgow Intl Airport-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Glasgow Intl Airport-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Glasgow Intl Airport-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Glasgow Intl Airport-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Glasgow Intl Airport-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 $672). Flying from Glasgow Intl Airport to Washington, D.C. in April is currently the most expensive (average of $1,053). 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.

How far ahead should I book a flight from Glasgow Intl Airport to Washington, D.C.?

The best time to book flights from Glasgow Intl Airport to Washington, D.C. is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 August 4, 2026.
See what other customers who have flown with Aer Lingus from Glasgow Intl Airport to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,685 reviews

Boarding

7.4

Crew

8.1

Overall

7.3

Food

6.7

Comfort

7.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,685 reviews
Aer Lingus
7.3
Good
1,685 reviews

Boarding

7.4

Crew

8.1

Overall

7.3

Food

6.7

Comfort

7.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

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.

  • How long is the flight from Glasgow Intl Airport to Washington, D.C.?

    Airlines like Icelandair, Air France, and Delta fly from Glasgow Intl Airport to Washington, D.C. in about 10h. The time it takes to get you to your destination can typically vary by up to 8h 52m. The distance from Glasgow Intl Airport to Washington, D.C. is about 3426 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Glasgow Intl Airport to Washington, D.C. round-trip?

    According to our current data, Aer Lingus ($802), offers the cheapest pricing from Glasgow Intl Airport to Washington, D.C.. Users have found that Aer Lingus is 12% cheaper than the other options available to this destination.

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

    The most popular route from Glasgow Intl Airport to Washington, D.C. is Glasgow Intl - Washington, D.C. Dulles Intl. You may also consider Glasgow Intl - Washington, D.C. Reagan-National or Glasgow Intl - Baltimore/Washington.

  • 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 vacation 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 $672). Flying from Glasgow Intl Airport to Washington, D.C. in April is currently the most expensive (average of $1,053). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Clinton
Oxon Hill
Hunt Valley
Woodbridge
Silver Spring
Largo

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Glasgow Intl to Washington, D.C.

Discover the top airline 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 2,558,603 searches. Data last updated August 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$802Average$1,028FlexibilityNo cancel feeOn-timeN/A

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