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Dulles Intl

$602+ Cheap flights from Glasgow Intl (GLA) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — IAD
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Glasgow Intl to Washington, D.C. Dulles Intl are usually found in October or January, booked 48 days in advance, depart on a Wednesday or Monday and return on a Thursday

Find flight deals from Glasgow Intl to Dulles Intl

Cheapest flights from Glasgow Intl to Dulles Intl
Explore the most affordable flight options available from Glasgow Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/258:25 amGLA - IAD
2 stops15h 05mMultiple Airlines
mar. 12/27:40 pmIAD - GLA
2 stops19h 40mMultiple Airlines
Deal found 10/28$602
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/128:25 amGLA - IAD
1 stop12h 10mMultiple Airlines
vie. 12/199:00 pmIAD - GLA
1 stop18h 00mMultiple Airlines
Deal found 10/28$604
This Gotogate deal was found by Cheapflights users on 10/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/2512:35 pmGLA - IAD
1 stop10h 55mIcelandair
mar. 12/27:40 pmIAD - GLA
1 stop9h 15mIcelandair
Deal found 10/28$620
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/107:45 amGLA - IAD
2 stops15h 45mMultiple Airlines
mié. 12/177:40 pmIAD - GLA
2 stops14h 35mMultiple Airlines
Deal found 10/26$621
This The Travel House deal was found by Cheapflights users on 10/28. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/612:35 pmGLA - IAD
1 stop10h 55mIcelandair
mié. 11/127:40 pmIAD - GLA
1 stop9h 15mIcelandair
Deal found 10/28$626
This Expedia deal was found by Cheapflights users on 10/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/2612:00 pmGLA - IAD
1 stop12h 30mAer Lingus
mié. 12/35:05 pmIAD - GLA
1 stop10h 45mAer Lingus
Deal found 10/26$686
This Expedia deal was found by Cheapflights users on 10/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/258:20 amGLA - IAD
1 stop12h 15mAer Lingus
mar. 12/25:05 pmIAD - GLA
1 stop9h 45mAer Lingus
Deal found 10/28$687
This Justfly.com deal was found by Cheapflights users on 10/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/68:20 amGLA - IAD
1 stop12h 15mAer Lingus
mié. 11/129:00 pmIAD - GLA
1 stop9h 30mAer Lingus
Deal found 10/26$688
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/181:25 pmGLA - IAD
2 stops31h 10mMultiple Airlines
sáb. 1/39:00 pmIAD - GLA
1 stop17h 55mMultiple Airlines
Deal found 10/28$694
This Expedia deal was found by Cheapflights users on 10/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/108:20 amGLA - IAD
1 stop12h 15mAer Lingus
mié. 12/175:05 pmIAD - GLA
1 stop9h 45mAer Lingus
Deal found 10/26$696
This Expedia deal was found by Cheapflights users on 10/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/111:20 pmGLA - IAD
1 stop11h 10mAer Lingus
jue. 12/185:05 pmIAD - GLA
1 stop10h 45mAer Lingus
Deal found 10/27$709

Cheap flight deals from Glasgow Intl to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) to Dulles Intl (IAD). 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 octubre 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$602
(Mytrip)

Popular in

July

Cheapest in

October

Average price

$701
Provider with most accurate pricing for Glasgow Intl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Glasgow Intl-Washington, D.C. Dulles Intl flights.
Search Deals
From Glasgow Intl to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Glasgow Intl to Dulles Intl 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 octubre 28, 2025.
Use the filters below to find and compare flights from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Glasgow Intl

Fly to

Dulles Intl

Route

Depart

Return

Price

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

mar. 11/25

8:25 am-6:30 pm

2 stops15h 05m

Washington, D.C. Dulles Intl

mar. 12/2

7:40 pm-8:20 pm

2 stops19h 40m

$602

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

mar. 11/25

12:35 pm-6:30 pm

1 stop10h 55m

Washington, D.C. Dulles Intl

mar. 12/2

7:40 pm-9:55 am

1 stop9h 15m

$620

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

mié. 12/10

7:45 am-6:30 pm

2 stops15h 45m

Washington, D.C. Dulles Intl

mié. 12/17

7:40 pm-3:15 pm

2 stops14h 35m

$621

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

mié. 11/26

12:00 pm-7:30 pm

1 stop12h 30m

Washington, D.C. Dulles Intl

mié. 12/3

5:05 pm-8:50 am

1 stop10h 45m

$686

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

jue. 12/11

1:20 pm-7:30 pm

1 stop11h 10m

Washington, D.C. Dulles Intl

jue. 12/18

5:05 pm-8:50 am

1 stop10h 45m

$709

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

mar. 12/16

12:35 pm-6:30 pm

1 stop10h 55m

Washington, D.C. Dulles Intl

mié. 1/21

7:40 pm-9:55 am

1 stop9h 15m

$747

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

jue. 12/18

7:15 am-3:35 pm

1 stop13h 20m

Washington, D.C. Dulles Intl

mié. 12/31

5:05 pm-10:05 am

1 stop12h 00m

$755

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

vie. 12/19

8:25 am-7:30 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

mié. 12/31

5:05 pm-10:05 am

1 stop12h 00m

$833

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

mar. 3/10

8:10 pm-8:30 pm

1 stop28h 20m

Washington, D.C. Dulles Intl

mar. 3/17

10:45 pm-7:40 pm

2 stops16h 55m

$856

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

lun. 2/23

12:35 pm-6:30 pm

1 stop10h 55m

Washington, D.C. Dulles Intl

mié. 3/4

7:40 pm-9:55 am

1 stop9h 15m

$859

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 17 results
1
2
  • Most accurate provider: When it comes to deals on Glasgow Intl Airport-Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Glasgow Intl Airport-Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport 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 Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Glasgow Intl to Dulles Intl. Price data was last updated on October 24, 2025.

The price you pay for your flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 48 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, May is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport (average of $574). Flying from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $789). 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 much does it cost to fly round-trip from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated octubre 28, 2025.
Peruse reviews from past customers who have flown with Aer Lingus from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,360 reviews

Overall

7.2

Food

6.6

Boarding

7.4

Entertainment

6.9

Comfort

7.1

Crew

8.0

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
Aer Lingus
7.2
Good
1,360 reviews
Aer Lingus
7.2
Good
1,360 reviews

Overall

7.2

Food

6.6

Boarding

7.4

Entertainment

6.9

Comfort

7.1

Crew

8.0

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.

Related info for your journey

Find useful and relevant information for your journey from Glasgow Intl to Dulles Intl. 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. Dulles Intl Airport?

    For as low as $620, Icelandair can have you in Washington, D.C. Dulles Intl Airport from Glasgow Intl Airport in 10h 55m. The distance between Glasgow Intl Airport and Washington, D.C. Dulles Intl Airport is about 3426 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport round-trip from $687. Users have found that Aer Lingus is 15% cheaper than the other options available to this destination.

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

    Yes. In addition to deals on Glasgow Intl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Glasgow Intl to Dulles Intl?

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

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

    Yes. Cheapflights offers flight deals from Glasgow Intl to Dulles Intl 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. Dulles Intl Airport?

    Currently, May is the cheapest month in which you can book a flight from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport (average of $574). Flying from Glasgow Intl Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $789). 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. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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Alternative routes for Glasgow Intl to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Glasgow Intl to Baltimore flights
Glasgow Intl to Reagan-National flights

Top airline flying from Glasgow Intl to Dulles Intl

Discover the top airline that operate flights from Glasgow Intl to Dulles Intl. 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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$687Average$940FlexibilityNo cancel feeOn-timeN/A

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