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Cheap flights from London Luton Airport to Washington, D.C. Dulles Intl Airport from £403

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — IAD
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

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 16 January 2026.

Round-trip from

£447

One-way from

£403

Popular in

July

Cheapest in

February

Average price

£474
6/2-13/2
  • 6/2-13/2
  • 2 total stops
  • 32h 55m total
  • London to Washington, D.C.
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1/5
  • 1/5
  • 2 total stops
  • 32h 56m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Find 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 16 January 2026.

Thu 22/109:00
LTN
-
IAD
2 stops14h 30m
Multiple Airlines
Wed 28/119:40
IAD
-
LTN
2 stops16h 25m
Multiple Airlines
Deal found 14/1£422
Fri 6/205:50
LTN
-
IAD
1 stop14h 45m
Multiple Airlines
Fri 13/217:05
IAD
-
LTN
1 stop18h 10m
Multiple Airlines
Deal found 14/1£447
Thu 22/109:00
LTN
-
IAD
2 stops14h 30m
Multiple Airlines
Thu 29/119:40
IAD
-
LTN
2 stops12h 40m
Multiple Airlines
Deal found 14/1£457
Thu 26/209:00
LTN
-
IAD
1 stop11h 35m
Multiple Airlines
Sun 1/321:00
IAD
-
LTN
1 stop9h 45m
Multiple Airlines
Deal found 14/1£458
Sat 28/209:00
LTN
-
IAD
1 stop11h 35m
Multiple Airlines
Sat 7/317:05
IAD
-
LTN
1 stop9h 30m
Multiple Airlines
Deal found 14/1£490
Thu 12/214:10
LTN
-
IAD
2 stops31h 30m
Multiple Airlines
Thu 19/220:30
IAD
-
LTN
2 stops19h 00m
Multiple Airlines
Deal found 15/1£491
Mon 2/206:00
LTN
-
IAD
1 stop14h 35m
Multiple Airlines
Sun 8/217:05
IAD
-
LTN
1 stop10h 50m
Multiple Airlines
Deal found 14/1£494

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 16 January 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

Luton

Fly to

Dulles Intl

Route

Depart

Return

Price

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 12/2

14:10-16:40

2 stops31h 30m

Washington, D.C. Dulles Intl

Thu 19/2

20:30-20:30

2 stops19h 00m

£491

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 7/5

09:25-19:10

1 stop14h 45m

Washington, D.C. Dulles Intl

Sun 10/5

20:40-21:40

1 stop20h 00m

£503

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 13/5

09:40-20:35

2 stops15h 55m

Washington, D.C. Dulles Intl

Tue 19/5

17:15-09:15

1 stop11h 00m

£538

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 4/2

14:40-15:15

2 stops29h 35m

Washington, D.C. Dulles Intl

Thu 12/2

18:00-17:50

2 stops18h 50m

£568

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 26/1

09:00-18:30

2 stops14h 30m

Washington, D.C. Dulles Intl

Thu 29/1

19:40-22:00

2 stops21h 20m

£579

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 26/1

06:00-18:30

2 stops17h 30m

Washington, D.C. Dulles Intl

Wed 28/1

17:05-08:35

1 stop10h 30m

£589

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 2/2

21:40-14:35

2 stops21h 55m

Washington, D.C. Dulles Intl

Thu 5/2

20:30-17:50

2 stops16h 20m

£621

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 12/3

06:05-17:30

1 stop15h 25m

Washington, D.C. Dulles Intl

Mon 23/3

23:55-21:05

2 stops17h 10m

£622

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 16/3

08:00-19:30

1 stop15h 30m

Washington, D.C. Dulles Intl

Sun 22/3

23:55-21:15

2 stops17h 20m

£623

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 9/2

06:00-18:30

2 stops17h 30m

Washington, D.C. Dulles Intl

Sat 14/2

17:05-07:35

1 stop9h 30m

£630

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 22 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.

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 0% of weekly flights between London and Washington, D.C. have experienced delays in the past year, with the average delay time being 0 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 evening 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 Thursday 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
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park

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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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