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Cheap flights from London Luton Airport to Washington, D.C. Dulles Intl Airport from £337

LTN — IAD
26 Sep — 3 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Luton to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Luton to Dulles Intl

Thu 12/1106:15 -
2 stops17h 15m
Sun 15/1119:40 -
2 stops21h 30m
Deal found 24/8£447
Thu 1/1009:25 -
2 stops14h 55m
Mon 5/1020:30 -
2 stops21h 20m
Deal found 23/8£453
Tue 6/1015:15 -
3 stops30h 45m
Thu 15/1020:20 -
2 stops18h 35m
Deal found 25/8£460
Sat 5/909:00 -
2 stops18h 15m
Tue 8/920:30 -
2 stops14h 00m
Deal found 22/8£471
Wed 21/1005:40 -
2 stops21h 35m
Wed 4/1119:40 -
2 stops16h 55m
Deal found 26/8£473
Tue 22/913:40 -
2 stops30h 30m
Tue 29/922:35 -
2 stops20h 10m
Deal found 22/8£475
Tue 6/1008:00 -
1 stop15h 50m
Tue 13/1020:25 -
1 stop12h 35m
Deal found 23/8£478
Thu 8/1008:00 -
1 stop15h 50m
Thu 15/1020:35 -
1 stop12h 30m
Deal found 24/8£482

Find flight deals from Luton to Dulles Intl

Round-trip from

£447

One-way from

£337

Popular in

June

Cheapest in

February

Average price

£523
12/11-15/11
  • 12/11-15/11
  • 4 total stops
  • 38h 45m total
  • London to Washington, D.C.
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23/9
  • 23/9
  • 3 total stops
  • 52h 15m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£39 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Luton Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Thu 1/10

09:25-19:20

2 stops14h 55m

Washington, D.C. Dulles Intl

Tue 6/10

20:30-22:10

2 stops20h 40m

£471

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Wed 25/11

07:45-18:30

2 stops15h 45m

Washington, D.C. Dulles Intl

Sun 29/11

19:40-15:10

2 stops14h 30m

£499

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Thu 19/11

06:00-18:30

1 stop17h 30m

Washington, D.C. Dulles Intl

Sun 29/11

19:40-15:05

1 stop14h 25m

£576

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Fri 20/11

07:45-19:05

2 stops16h 20m

Washington, D.C. Dulles Intl

Sun 29/11

17:15-09:10

1 stop10h 55m

£610

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Sat 24/10

18:15-16:45

2 stops27h 30m

Washington, D.C. Dulles Intl

Wed 28/10

09:55-13:45

3 stops23h 50m

£612

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Wed 13/1

07:45-19:05

2 stops16h 20m

Washington, D.C. Dulles Intl

Wed 27/1

17:15-13:45

2 stops15h 30m

£633

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Sat 26/12

11:05-19:30

1 stop13h 25m

Washington, D.C. Dulles Intl

Tue 5/1

17:05-10:45

1 stop12h 40m

£659

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Tue 6/10

13:10-19:35

1 stop11h 25m

Washington, D.C. Dulles Intl

Tue 13/10

17:15-09:15

1 stop11h 00m

£673

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Fri 11/12

07:45-19:05

2 stops16h 20m

Washington, D.C. Dulles Intl

Fri 15/1

17:15-14:05

1 stop15h 50m

£693
Fastest return journey

LondonWashington, D.C.

LTN London Luton - IAD Washington, D.C. Dulles Intl

LTNIAD

London Luton

Sun 11/10

09:00-15:45

1 stop11h 45m

Washington, D.C. Dulles Intl

Sun 18/10

20:55-11:25

1 stop9h 30m

£738

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 19 resultsSorted by cheapest first
1
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Best time to book a flight from Luton to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Luton with our price prediction graph.
Estimated return price

Cheapflights Insights

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

How often are flights from London to Washington, D.C. delayed?

About 22% of weekly flights between London and Washington, D.C. have experienced delays in the past year, with the average delay time being 229 minutes.

What is the most punctual flight time for London to Washington, D.C. flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Related info for your journey

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

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

  • How can I find direct flights from Luton to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luton to Dulles Intl.

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

    Yes. Cheapflights offers flight deals from Luton 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.

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

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Deals for Luton to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Luton 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 Luton to Dulles Intl.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Luton to Dulles Intl flexibly with Cheapflights today.

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Yes! Start tracking prices for Luton to Dulles Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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