Cheap flights from Glasgow to Washington, D.C. Dulles Intl Airport from £233

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — IAD
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Glasgow to Washington, D.C. Dulles Intl are usually found in January or September, booked 48 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 18 September 2025.

Round-trip from

£413

One-way from

£233

Popular in

July

Cheapest in

January

Average price

£541
30/10-5/11
  • 30/10-5/11
  • 2 total stops
  • 25h 20m total
  • Glasgow to Washington, D.C.
5/11
  • 5/11
  • 2 total stops
  • 52h 16m total
  • Glasgow to Washington, D.C.
Highest demand for flights based on searches. 11% potential increase in price (£55 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Average for round-trip flights in September 2025

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 18 September 2025.

Thu 30/1007:15GLA - IAD
1 stop13h 20mMultiple Airlines
Wed 5/1117:05IAD - GLA
1 stop12h 00mMultiple Airlines
Deal found 15/9£412
Thu 30/1007:15GLA - IAD
1 stop13h 20mMultiple Airlines
Thu 6/1117:05IAD - GLA
1 stop9h 50mMultiple Airlines
Deal found 15/9£413
Fri 31/1008:25GLA - IAD
1 stop12h 10mMultiple Airlines
Thu 6/1117:05IAD - GLA
1 stop9h 50mMultiple Airlines
Deal found 17/9£414
Wed 29/1007:45GLA - IAD
1 stop12h 50mMultiple Airlines
Tue 4/1117:05IAD - GLA
1 stop9h 15mMultiple Airlines
Deal found 17/9£415
Tue 7/1007:35GLA - IAD
1 stop13h 15mMultiple Airlines
Wed 15/1021:00IAD - GLA
1 stop11h 20mMultiple Airlines
Deal found 15/9£418
Sat 1/1107:20GLA - IAD
1 stop13h 15mMultiple Airlines
Sun 9/1117:05IAD - GLA
1 stop9h 50mMultiple Airlines
Deal found 17/9£422
Sat 1/1107:20GLA - IAD
1 stop13h 15mMultiple Airlines
Fri 7/1117:05IAD - GLA
1 stop9h 45mMultiple Airlines
Deal found 15/9£428
Sat 1/1107:20GLA - IAD
1 stop13h 15mMultiple Airlines
Sat 8/1121:00IAD - GLA
1 stop13h 50mMultiple Airlines
Deal found 17/9£434
Mon 3/1112:35GLA - IAD
1 stop10h 55mIcelandair
Mon 10/1119:40IAD - GLA
1 stop9h 15mIcelandair
Deal found 15/9£454
Tue 28/1013:25GLA - IAD
1 stop31h 40mKLM
Fri 7/1118:05IAD - GLA
1 stop23h 05mKLM
Deal found 15/9£478
Tue 28/1009:05GLA - IAD
1 stop12h 00mKLM
Sat 8/1118:05IAD - GLA
1 stop11h 00mKLM
Deal found 16/9£478

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 18 September 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

Tue 28/10

06:05-17:05

1 stop15h 00m

Washington, D.C. Dulles Intl

Sat 8/11

18:05-10:05

1 stop11h 00m

£478

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 30/10

06:05-17:05

1 stop15h 00m

Washington, D.C. Dulles Intl

Sat 8/11

13:00-10:05

2 stops16h 05m

£478

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Mon 3/11

09:05-16:05

1 stop12h 00m

Washington, D.C. Dulles Intl

Mon 10/11

12:11-08:30

2 stops15h 19m

£478

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 29/10

09:05-17:05

1 stop12h 00m

Washington, D.C. Dulles Intl

Thu 6/11

18:05-16:40

1 stop17h 35m

£478

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Tue 28/10

09:05-17:05

1 stop12h 00m

Washington, D.C. Dulles Intl

Thu 6/11

18:05-16:40

1 stop17h 35m

£478

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 1/10

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Wed 8/10

12:09-08:10

2 stops15h 01m

£478

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 30/10

09:05-17:05

1 stop12h 00m

Washington, D.C. Dulles Intl

Sat 8/11

18:05-10:05

1 stop11h 00m

£478

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 30/10

06:05-17:05

1 stop15h 00m

Washington, D.C. Dulles Intl

Thu 6/11

12:09-08:30

2 stops15h 21m

£478

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 1/10

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Wed 8/10

17:25-23:10

1 stop24h 45m

£478

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Thu 30/10

06:05-17:05

1 stop15h 00m

Washington, D.C. Dulles Intl

Thu 6/11

18:05-16:40

1 stop17h 35m

£478

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 17 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 12 September 2025.

Booking 48 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 18 September 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 18 September 2025.
See what other customers who have flown with KLM, Aer Lingus, andIcelandair 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.

Boarding

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Boarding

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Boarding

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Boarding

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Boarding

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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

    There are many flights that can get you from Glasgow to Washington, D.C. Dulles Intl Airport in 12h. Fly via KLM or Delta to get the fastest option. There are 3426 mi between Glasgow and Washington, D.C. Dulles Intl Airport. Both multi-stop and direct flights can be found to your destination and back.

  • 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 Icelandair. Our recent data shows that you can find tickets from as low as £424 on this airline. Additional options worth looking into are British Airways and Aer Lingus, starting at £486 and £500 round-trip. Icelandair is currently priced 29% below the average price you’ll pay for this route.

  • 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
College Park
Tysons

Browse thousands of different options on Cheapflights for your next trip

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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 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£424Average£572FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£444Average£575FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£500Average£656FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapest£522Average£623FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£539Average£613FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£561Average£695FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£598Average£786FlexibilityNo 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.

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