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Cheap flights from London Luton Airport to Washington, D.C. Dulles Intl Airport from £383

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — IAD
31 Aug — 7 Sep1
1 adult

Cheap flight deals from Luton to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Luton (LTN) 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 26 August 2025.

Round-trip from

£445

One-way from

£383

Popular in

July

Cheapest in

February

Average price

£615
9/10-16/10
  • 9/10-16/10
  • 4 total stops
  • 30h 40m total
  • London to Washington, D.C.
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11/10
  • 11/10
  • 3 total stops
  • 38h 01m total
  • London to Washington, D.C.
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Highest demand for flights based on searches. 11% potential increase in price (£53 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Luton to Dulles Intl

Cheapest flights from Luton to Dulles Intl
Explore the most affordable flight options available from Luton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2025.

Thu 9/1008:45LTN - IAD
2 stops15h 35mMultiple Airlines
Thu 16/1020:30IAD - LTN
2 stops15h 05mMultiple Airlines
Deal found 25/8£445
Tue 2/910:00LTN - IAD
2 stops17h 10mMultiple Airlines
Fri 5/920:30IAD - LTN
2 stops20h 15mMultiple Airlines
Deal found 25/8£448
Thu 4/908:45LTN - IAD
2 stops18h 25mMultiple Airlines
Wed 17/923:15IAD - LTN
2 stops16h 30mMultiple Airlines
Deal found 25/8£453
Sat 27/910:45LTN - IAD
2 stops13h 35mMultiple Airlines
Fri 3/1023:15IAD - LTN
2 stops11h 30mMultiple Airlines
Deal found 25/8£454
Mon 22/909:10LTN - IAD
2 stops33h 20mMultiple Airlines
Mon 29/917:25IAD - LTN
2 stops18h 50mMultiple Airlines
Deal found 24/8£458
Wed 10/910:00LTN - IAD
1 stop10h 50mMultiple Airlines
Wed 17/921:00IAD - LTN
1 stop13h 25mMultiple Airlines
Deal found 25/8£460
Mon 1/909:00LTN - IAD
1 stop14h 55mMultiple Airlines
Tue 9/921:00IAD - LTN
1 stop10h 35mMultiple Airlines
Deal found 24/8£462
Thu 4/908:45LTN - IAD
1 stop12h 05mMultiple Airlines
Wed 10/921:00IAD - LTN
1 stop13h 25mMultiple Airlines
Deal found 25/8£463
Thu 16/1005:55LTN - IAD
2 stops19h 55mMultiple Airlines
Fri 24/1017:00IAD - LTN
3 stops22h 40mMultiple Airlines
Deal found 24/8£472

Cheapflights Fare Finder

 
Customise your flight search to find flights from Luton 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 26 August 2025.
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

Luton

Fly to

Dulles Intl

Route

Depart

Return

Price

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 9/10

08:45-19:20

2 stops15h 35m

Washington, D.C. Dulles Intl

Thu 16/10

20:30-16:35

2 stops15h 05m

£445

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Sat 27/9

10:45-19:20

2 stops13h 35m

Washington, D.C. Dulles Intl

Fri 3/10

23:15-15:45

2 stops11h 30m

£454

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 22/9

09:10-13:30

2 stops33h 20m

Washington, D.C. Dulles Intl

Mon 29/9

17:25-17:15

2 stops18h 50m

£458

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 10/9

10:00-15:50

1 stop10h 50m

Washington, D.C. Dulles Intl

Wed 17/9

21:00-15:25

1 stop13h 25m

£460

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 24/9

13:00-19:30

1 stop11h 30m

Washington, D.C. Dulles Intl

Sun 28/9

17:20-08:35

1 stop10h 15m

£465

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 16/10

05:55-20:50

2 stops19h 55m

Washington, D.C. Dulles Intl

Fri 24/10

17:00-20:40

3 stops22h 40m

£472

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 1/10

06:05-19:59

2 stops18h 54m

Washington, D.C. Dulles Intl

Tue 14/10

22:05-22:15

3 stops19h 10m

£478

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Fri 28/11

05:50-15:35

1 stop14h 45m

Washington, D.C. Dulles Intl

Mon 1/12

17:05-08:35

1 stop10h 30m

£481

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Sat 11/10

06:05-15:06

3 stops38h 01m

£383

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 26/1

15:30-18:30

1 stop32h 00m

£385

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 20 results
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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
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.

Related info for your journey

Find useful and relevant information for your journey from Luton to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from London Luton Airport to Washington, D.C. Dulles Intl Airport (average of £599). Flying from London Luton Airport 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
Laurel
Tysons

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