Find flights
When to book
Airlines
FAQs

Cheap flights from Glasgow to Washington, D.C. Dulles Intl Airport from £338

GLA — IAD
14 Oct — 21 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Glasgow to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow to Dulles Intl

Wed 21/1010:15 -
2 stops17h 00m
Sun 25/1020:40 -
2 stops19h 35m
Deal found 11/9£435
Thu 29/1008:25 -
2 stops15h 05m
Thu 5/1119:40 -
2 stops13h 15m
Deal found 14/9£459
Sun 25/1007:25 -
1 stop13h 20m
Sun 1/1117:15 -
1 stop9h 10m
Deal found 10/9£485
Wed 2/1211:35 -
1 stop11h 55m
Mon 7/1219:40 -
1 stop9h 15m
Deal found 9/9£492
Wed 2/1207:00 -
2 stops16h 30m
Wed 16/1219:40 -
2 stops15h 20m
Deal found 13/9£496
Mon 26/1008:25 -
1 stop15h 55m
Mon 2/1117:15 -
1 stop10h 50m
Deal found 11/9£514
Thu 3/1211:55 -
1 stop11h 35m
Tue 15/1219:40 -
1 stop9h 15m
Deal found 13/9£523
Sat 24/1011:10 -
1 stop13h 00m
Sat 31/1018:15 -
1 stop18h 30m
Deal found 11/9£528
Thu 29/1008:25 -
1 stop15h 55m
Thu 5/1118:05 -
1 stop10h 45m
Deal found 14/9£529
Mon 26/1008:25 -
1 stop15h 55m
Mon 2/1121:45 -
1 stop11h 45m
Deal found 11/9£529
Tue 6/1012:00 -
1 stop12h 35m
Tue 27/1022:45 -
1 stop10h 20m
Deal found 9/9£530

Find flight deals from Glasgow to Dulles Intl

Round-trip from

£435

One-way from

£338

Popular in

July

Cheapest in

February

Average price

£561
21/10-25/10
  • 21/10-25/10
  • 4 total stops
  • 36h 35m total
  • Glasgow to Washington, D.C.
Search Deals
29/11-31/12
  • 29/11-31/12
  • 3 total stops
  • 47h 55m total
  • Glasgow to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£52 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
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

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Sun 29/11

21:25-18:30

2 stops50h 05m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£339

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Mon 28/12

20:55-18:30

2 stops26h 35m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£405

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Sat 24/10

06:35-15:45

2 stops14h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£508

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Wed 13/1

08:25-15:45

1 stop12h 20m

Washington, D.C. Dulles Intl

Wed 3/2

18:05-09:30

1 stop10h 25m

£551

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Thu 28/1

08:25-15:45

1 stop12h 20m

Washington, D.C. Dulles Intl

Thu 25/2

21:45-13:05

1 stop10h 20m

£551

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Fri 16/10

21:25-15:45

1 stop23h 20m

Washington, D.C. Dulles Intl

Sun 1/11

21:45-14:35

1 stop11h 50m

£561

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Wed 2/12

20:15-16:20

2 stops25h 05m

Washington, D.C. Dulles Intl

Mon 7/12

17:50-16:25

2 stops17h 35m

£562

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Wed 14/10

14:05-20:20

1 stop11h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£564
Fastest return journey

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Thu 15/10

14:20-19:20

1 stop10h 00m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£568

GlasgowWashington, D.C.

GLA Glasgow Intl - IAD Washington, D.C. Dulles Intl

GLAIAD

Glasgow Intl

Tue 1/12

13:15-19:20

1 stop11h 05m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£574

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 17 resultsSorted by cheapest first
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

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 £420). Flying from Glasgow to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £795). 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.

How much does it cost for a return flight from Glasgow to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.
Glasgow to Washington, D.C. Dulles Intl Airport flights typically cost between £501 and £702 in October.
The cheapest return price found within the last 5 days was £435 on Multiple Airlines (21 Oct–25 Oct).

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
1,758 reviews
Check prices

Food

6.7

Overall

7.3

Crew

8.1

Boarding

7.5

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.
Aer Lingus
7.3
Good
1,758 reviews
Aer Lingus
7.3
Good
1,758 reviews
Check prices

Food

6.7

Overall

7.3

Crew

8.1

Boarding

7.5

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.
Icelandair
6.9
Okay
743 reviews
Aer Lingus
7.3
Good
1,758 reviews
Check prices

Food

6.7

Overall

7.3

Crew

8.1

Boarding

7.5

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.
British Airways
6.7
Okay
8,220 reviews
Aer Lingus
7.3
Good
1,758 reviews
Check prices

Food

6.7

Overall

7.3

Crew

8.1

Boarding

7.5

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.

Related info for your journey

  • 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 20m. Fly via British Airways to get the fastest option. There are 3426 mi between Glasgow and Washington, D.C. Dulles Intl Airport.

  • 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 £420 on this airline. Additional options worth looking into are British Airways and Aer Lingus, starting at £492 and £496 round-trip. Icelandair is currently priced 33% 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 £420). Flying from Glasgow to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £795). 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£420Average£585FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£454Average£601FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£496Average£689FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£511Average£837FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£521Average£679FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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.

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.