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Cheap flights from London Luton Airport to Washington, D.C. Dulles Intl Airport from £330

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — IAD
14 Aug — 21 Aug1
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
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 15 July 2026.

Wed 7/1009:40
LTN
-
IAD
2 stops34h 30m
Multiple Airlines
Wed 21/1017:45
IAD
-
LTN
2 stops19h 20m
Multiple Airlines
Deal found 12/7£446
Thu 8/1012:45
LTN
-
IAD
2 stops30h 40m
Multiple Airlines
Mon 12/1017:40
IAD
-
LTN
2 stops15h 40m
Multiple Airlines
Deal found 10/7£450
Wed 26/806:15
LTN
-
IAD
3 stops19h 09m
Multiple Airlines
Sun 30/820:30
IAD
-
LTN
2 stops20h 10m
Multiple Airlines
Deal found 12/7£454
Thu 27/808:00
LTN
-
IAD
1 stop15h 55m
Multiple Airlines
Thu 3/920:30
IAD
-
LTN
1 stop12h 35m
Multiple Airlines
Deal found 13/7£476
Thu 17/908:00
LTN
-
IAD
1 stop15h 55m
Multiple Airlines
Sun 20/917:00
IAD
-
LTN
1 stop16h 05m
Multiple Airlines
Deal found 15/7£487
Thu 24/917:30
LTN
-
IAD
2 stops25h 55m
Multiple Airlines
Sun 27/922:35
IAD
-
LTN
2 stops19h 45m
Multiple Airlines
Deal found 11/7£488

Find 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 15 July 2026.

Round-trip from

£446

One-way from

£330

Popular in

June

Cheapest in

February

Average price

£568
26/8-30/8
  • 26/8-30/8
  • 5 total stops
  • 58h 19m total
  • London to Washington, D.C.
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30/8
  • 30/8
  • 3 total stops
  • 47h 35m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£38 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).
Search Deals
Average for round-trip flights in July 2026
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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 15 July 2026.
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 - IAD

LTNIAD

London Luton

Thu 8/10

12:45-14:25

2 stops30h 40m

Washington, D.C. Dulles Intl

Mon 12/10

17:40-14:20

2 stops15h 40m

£450

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 7/10

09:40-15:10

2 stops34h 30m

Washington, D.C. Dulles Intl

Wed 21/10

17:45-18:05

2 stops19h 20m

£457

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 17/9

08:00-18:55

1 stop15h 55m

Washington, D.C. Dulles Intl

Sun 20/9

17:00-14:05

1 stop16h 05m

£487

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 8/10

08:00-18:50

1 stop15h 50m

Washington, D.C. Dulles Intl

Sun 11/10

17:00-14:05

1 stop16h 05m

£519

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 26/8

06:15-20:24

2 stops19h 09m

Washington, D.C. Dulles Intl

Fri 4/9

17:15-13:55

2 stops15h 40m

£575
Fastest return journey

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 24/8

12:25-19:25

1 stop12h 00m

Washington, D.C. Dulles Intl

Mon 31/8

17:15-09:15

1 stop11h 00m

£581

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 27/8

08:00-20:35

2 stops17h 35m

Washington, D.C. Dulles Intl

Thu 3/9

20:40-23:25

1 stop21h 45m

£629

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 6/8

07:30-20:24

2 stops17h 54m

Washington, D.C. Dulles Intl

Tue 15/12

09:55-14:25

2 stops23h 30m

£752

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Fri 20/11

15:55-18:30

1 stop31h 35m

Washington, D.C. Dulles Intl

Sun 29/11

19:40-22:30

1 stop21h 50m

£810
Cheapest one-way

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Sun 23/8

20:50-15:10

3 stops47h 20m

£336

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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.

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 17% of weekly flights between London and Washington, D.C. have experienced delays in the past year, with the average delay time being 8 minutes.

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

Historically, flights departing in the early afternoon 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

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.

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
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Alexandria
Sterling

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How does Cheapflights help users find flights from Luton to Dulles Intl?

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.

Can Cheapflights notify me if prices for flights from Luton to Dulles Intl become cheaper?

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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