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

GLA — IAD
25 Oct — 1 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Glasgow to Dulles Intl

Popular in

July

Cheapest in

February

Average price

£660
Highest demand for flights based on searches. 9% potential increase in price (£48 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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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

Cheapflights Insights

Everything you need to know about your flight from Glasgow to Washington, D.C. Dulles Intl Airport

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

Currently, February is the cheapest month in which you can book a flight from Glasgow to Washington, D.C. Dulles Intl Airport (average of £429). Flying from Glasgow to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £813). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Glasgow to Washington, D.C. Dulles Intl Airport as you normally would.

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Aer Lingus,Icelandair, andBritish Airways 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.
Aer Lingus
7.3
Good
1,788 reviews
Check prices

Overall

7.3

Food

6.7

Comfort

7.2

Crew

8.1

Entertainment

7.0

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Michael,Sept 2026

DUB - JFK

Food and service was great. Wish the USB on the planes worked so I could charge and use my phone on the flight
Aer Lingus
7.3
Good
1,788 reviews
Aer Lingus
7.3
Good
1,788 reviews
Check prices

Overall

7.3

Food

6.7

Comfort

7.2

Crew

8.1

Entertainment

7.0

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Michael,Sept 2026

DUB - JFK

Food and service was great. Wish the USB on the planes worked so I could charge and use my phone on the flight
Icelandair
6.9
Okay
751 reviews
Aer Lingus
7.3
Good
1,788 reviews
Check prices

Overall

7.3

Food

6.7

Comfort

7.2

Crew

8.1

Entertainment

7.0

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Michael,Sept 2026

DUB - JFK

Food and service was great. Wish the USB on the planes worked so I could charge and use my phone on the flight
British Airways
6.7
Okay
8,231 reviews
Aer Lingus
7.3
Good
1,788 reviews
Check prices

Overall

7.3

Food

6.7

Comfort

7.2

Crew

8.1

Entertainment

7.0

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Michael,Sept 2026

DUB - JFK

Food and service was great. Wish the USB on the planes worked so I could charge and use my phone on the flight

Related info for your journey

  • 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 £429 on this airline. Additional options worth looking into are British Airways and Aer Lingus, starting at £503 and £517 round-trip. Icelandair is currently priced 34% 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, February is the cheapest month in which you can book a flight from Glasgow to Washington, D.C. Dulles Intl Airport (average of £429). Flying from Glasgow to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £813). 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
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield
Sterling

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Glasgow to Dulles Intl

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£429Average£600FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£464Average£607FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£517Average£710FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£523Average£856FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£532Average£694FlexibilityNo cancel feeOn-time69%
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Fly with Cheapflights

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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