Find flights
When to book
Airlines
FAQs

Cheap flights from Glasgow to Washington, D.C. Dulles Intl Airport from £286

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — IAD
16 Jul — 23 Jul1
1 adult

Cheapflights Tip: The best prices from Glasgow to Washington, D.C. Dulles Intl are usually found in January or March, booked 89 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from Glasgow to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow (GG1) 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 11 July 2025.

Round-trip from

£428

One-way from

£286

Popular in

August

Cheapest in

January

Average price

£706
24/8-31/8
  • 24/8-31/8
  • 5 total stops
  • 50h 44m total
  • Glasgow to Washington, D.C.
Search Deals
4/9
  • 4/9
  • 3 total stops
  • 36h 21m total
  • Glasgow to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Glasgow to Dulles Intl

Cheapest flights from Glasgow to Dulles Intl
Explore the most affordable flight options available from Glasgow to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Sun 24/816:35GLA - IAD
3 stops32h 24mMultiple Airlines
Sun 31/822:05IAD - GLA
2 stops18h 20mMultiple Airlines
Deal found 10/7£428
Mon 27/1020:25GLA - IAD
1 stop24h 10mBritish Airways
Mon 3/1118:20IAD - GLA
1 stop10h 30mBritish Airways
Deal found 10/7£442
Thu 6/1112:35GLA - IAD
1 stop10h 45mIcelandair
Wed 12/1119:40IAD - GLA
1 stop9h 15mIcelandair
Deal found 10/7£498
Thu 6/1106:05GLA - IAD
1 stop15h 00mDelta
Wed 12/1117:00IAD - GLA
2 stops14h 45mDelta
Deal found 10/7£550
Thu 6/1117:15GLA - IAD
1 stop27h 50mKLM
Wed 12/1118:05IAD - GLA
1 stop17h 30mKLM
Deal found 11/7£561
Wed 1/1006:00GLA - IAD
2 stops18h 37mVirgin Atlantic
Fri 10/1012:00IAD - GLA
2 stops16h 40mVirgin Atlantic
Deal found 9/7£640
Wed 3/906:10GLA - IAD
2 stops13h 55mLufthansa
Wed 10/918:10IAD - GLA
1 stop23h 55mLufthansa
Deal found 10/7£793
Wed 30/709:10GLA - IAD
2 stops15h 05mAir France
Wed 13/821:20IAD - GLA
2 stops13h 50mAir France
Deal found 10/7£798
Wed 3/908:35GLA - IAD
2 stops16h 35mAer Lingus
Wed 10/922:40IAD - GLA
2 stops16h 00mAer Lingus
Deal found 10/7£894

Cheapflights Fare Finder

Customise your flight search to find flights from Glasgow 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 858,174 searches. Data last updated 11 July 2025.
Use the filters below to find and compare flights from Glasgow to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Glasgow

Fly to

Dulles Intl

Route

Depart

Return

Price

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sun 24/8

16:35-19:59

3 stops32h 24m

Washington, D.C. Dulles Intl

Sun 31/8

22:05-21:25

2 stops18h 20m

£428

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 27/10

20:25-16:35

1 stop24h 10m

Washington, D.C. Dulles Intl

Mon 3/11

18:20-09:50

1 stop10h 30m

£442

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 6/11

12:35-18:20

1 stop10h 45m

Washington, D.C. Dulles Intl

Wed 12/11

19:40-09:55

1 stop9h 15m

£498

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 6/11

06:05-16:05

1 stop15h 00m

Washington, D.C. Dulles Intl

Wed 12/11

17:00-12:45

2 stops14h 45m

£550

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 6/11

17:15-16:05

1 stop27h 50m

Washington, D.C. Dulles Intl

Wed 12/11

18:05-16:35

1 stop17h 30m

£561

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 1/10

06:00-19:37

2 stops18h 37m

Washington, D.C. Dulles Intl

Fri 10/10

12:00-09:40

2 stops16h 40m

£640

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 3/9

06:10-15:05

2 stops13h 55m

Washington, D.C. Dulles Intl

Wed 10/9

18:10-23:05

1 stop23h 55m

£793

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 30/7

09:10-19:15

2 stops15h 05m

Washington, D.C. Dulles Intl

Wed 13/8

21:20-16:10

2 stops13h 50m

£798

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 3/9

08:35-20:10

2 stops16h 35m

Washington, D.C. Dulles Intl

Wed 10/9

22:40-19:40

2 stops16h 00m

£894

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 4/9

16:45-00:06

3 stops36h 21m

£286

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 14 results
1
2

Best time to book a flight from Glasgow to Dulles Intl

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

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

Use this chart to determine the optimal time to book a return flight from Glasgow to Dulles Intl. Price data was last updated on 27 June 2025.

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Glasgow to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Glasgow to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Glasgow to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). 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 IAD?

Find hourly flight availability from Glasgow to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

When flying from Glasgow to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 1% versus a flight at midday.

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 11 July 2025.
See what other customers who have flown with Delta, KLM, andAir France from Glasgow to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,467 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Aer Lingus
7.1
Good
1,154 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

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

    Our cheapest airline available from Glasgow to Washington, D.C. Dulles Intl Airport is British Airways. Our recent data shows that you can find tickets from as low as £442 on this airline. Additional options worth looking into are Icelandair and Delta, starting at £498 and £550 round-trip. British Airways is currently priced 28% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as £474. However, be on the lookout for offers from British Airways and Icelandair, as they are both options that can get you from Glasgow to Washington, D.C. Dulles Intl Airport for a low price.

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Glasgow to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Glasgow to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). 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?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Glasgow to Dulles Intl

Discover the top 7 airlines that operate flights from Glasgow 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 858,174 searches. Data last updated 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£447Average£587FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£448Average£585FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£504Average£643FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapest£544Average£609FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£546Average£616FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£564Average£711FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£577Average£769FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 Dulles Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Glasgow today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Glasgow to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Glasgow to Dulles Intl.

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

Certainly. Search results for flights to Dulles Intl from Glasgow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dulles Intl from Glasgow today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights