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Cheap flights from Glasgow to Washington, D.C. Dulles Intl Airport from £280

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — IAD
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Glasgow to Washington, D.C. Dulles Intl are usually found in January or March, booked 11 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 13 June 2025.

Round-trip from

£453

One-way from

£280

Popular in

August

Cheapest in

January

Average price

£687
Icelandair
  • Icelandair
  • 5/9-19/9
  • 2 total stops
  • 19h 10m total
  • Glasgow to Washington, D.C.
4/10
  • 4/10
  • 2 total stops
  • 39h 26m total
  • Glasgow to Washington, D.C.
Highest demand for flights based on searches. 9% potential increase in price (£50 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in June 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 13 June 2025.

Fri 5/914:20GLA - IAD
1 stop10h 00mIcelandair
Fri 19/923:15IAD - GLA
1 stop9h 10mIcelandair
Deal found 12/6£453
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 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
Thu 19/608:55GLA - IAD
1 stop11h 40mVirgin Atlantic
Wed 2/717:25IAD - GLA
1 stop14h 35mVirgin Atlantic
Deal found 11/6£591
Fri 20/608:35GLA - IAD
1 stop12h 15mAer Lingus
Fri 4/717:20IAD - GLA
1 stop9h 45mAer Lingus
Deal found 11/6£637
Wed 9/709:10GLA - IAD
2 stops15h 05mAir France
Wed 16/721:20IAD - GLA
2 stops13h 50mAir France
Deal found 11/6£661
Thu 19/610:00GLA - IAD
1 stop15h 10mIberia
Wed 2/722:40IAD - GLA
1 stop10h 35mIberia
Deal found 11/6£852
Wed 30/715:35GLA - IAD
2 stops37h 23mFinnair
Wed 13/817:55IAD - GLA
1 stop10h 20mFinnair
Deal found 11/6£957
Thu 19/606:10GLA - IAD
2 stops18h 15mLufthansa
Wed 2/717:40IAD - GLA
2 stops13h 45mLufthansa
Deal found 11/6£1,194

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 13 June 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

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

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 - 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

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 9/7

06:00-15:35

1 stop14h 35m

Washington, D.C. Dulles Intl

Wed 16/7

17:25-23:10

1 stop24h 45m

£595

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 9/7

09:10-19:15

2 stops15h 05m

Washington, D.C. Dulles Intl

Wed 16/7

21:20-16:10

2 stops13h 50m

£661

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sun 7/9

08:35-20:15

2 stops16h 40m

Washington, D.C. Dulles Intl

Sun 21/9

22:40-19:40

2 stops16h 00m

£686

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Wed 30/7

15:35-23:58

2 stops37h 23m

Washington, D.C. Dulles Intl

Wed 13/8

17:55-09:15

1 stop10h 20m

£957

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Tue 4/11

06:00-15:50

1 stop14h 50m

Washington, D.C. Dulles Intl

Tue 18/11

18:00-12:00

1 stop13h 00m

£1,690

GlasgowWashington, D.C.

GLA - IAD

GLAIAD

Glasgow Intl

Sat 4/10

23:50-10:16

2 stops39h 26m

£280

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 16 results
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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 9 June 2025.

Booking 9 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 13 June 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.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 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 13 June 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Glasgow to Washington, D.C.. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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 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 Icelandair. Our recent data shows that you can find tickets from as low as £453 on this airline. Additional options worth looking into are Delta and British Airways, starting at £537 and £562 round-trip. Icelandair is currently priced 26% 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 Icelandair, with whom users have recently found tickets for as low as £465. However, be on the lookout for offers from Aer Lingus and British Airways, 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
Arlington
Woodbridge
Hanover
Oxon Hill
College Park
Laurel
Tysons

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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£447Average£587FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£499Average£567FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£504Average£640FlexibilityNo 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£710FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£577Average£763FlexibilityNo 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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