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Cheap flights from Washington, D.C. Dulles Intl Airport to London Luton Airport from £248

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LTN
13 Apr — 20 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Luton

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Luton
Explore the most affordable flight options available from Dulles Intl to Luton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 March 2026.

Tue 5/517:15
IAD
-
LTN
1 stop11h 00m
Multiple Airlines
Tue 12/513:10
LTN
-
IAD
1 stop11h 25m
Multiple Airlines
Deal found 11/3£455
Mon 4/517:15
IAD
-
LTN
1 stop11h 00m
Multiple Airlines
Sun 10/509:00
LTN
-
IAD
1 stop15h 25m
Multiple Airlines
Deal found 10/3£456
Mon 4/520:55
IAD
-
LTN
1 stop13h 50m
Multiple Airlines
Tue 12/513:10
LTN
-
IAD
1 stop11h 25m
Multiple Airlines
Deal found 10/3£462
Sat 2/517:15
IAD
-
LTN
1 stop10h 05m
Multiple Airlines
Sun 10/509:00
LTN
-
IAD
1 stop11h 45m
Multiple Airlines
Deal found 10/3£465
Mon 13/420:20
IAD
-
LTN
2 stops23h 50m
Multiple Airlines
Tue 21/419:55
LTN
-
IAD
2 stops26h 05m
Multiple Airlines
Deal found 10/3£465
Sat 2/517:15
IAD
-
LTN
1 stop10h 05m
Multiple Airlines
Sat 9/511:00
LTN
-
IAD
1 stop13h 10m
Multiple Airlines
Deal found 11/3£469
Sun 26/420:20
IAD
-
LTN
2 stops20h 20m
Multiple Airlines
Sun 3/511:00
LTN
-
IAD
2 stops35h 00m
Multiple Airlines
Deal found 12/3£474
Mon 20/420:20
IAD
-
LTN
2 stops21h 30m
Multiple Airlines
Thu 23/415:50
LTN
-
IAD
2 stops30h 10m
Multiple Airlines
Deal found 10/3£480
Tue 28/417:05
IAD
-
LTN
2 stops16h 30m
Multiple Airlines
Tue 12/515:15
LTN
-
IAD
2 stops28h 55m
Multiple Airlines
Deal found 12/3£481
Sun 26/420:20
IAD
-
LTN
2 stops20h 20m
Multiple Airlines
Thu 30/413:00
LTN
-
IAD
2 stops33h 00m
Multiple Airlines
Deal found 14/3£483
Mon 4/517:15
IAD
-
LTN
1 stop17h 30m
Multiple Airlines
Mon 11/508:15
LTN
-
IAD
1 stop16h 10m
Multiple Airlines
Deal found 14/3£486

Find flight deals from Dulles Intl to Luton

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Luton (LTN). 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 14 March 2026.

Round-trip from

£455

One-way from

£248

Popular in

December

Cheapest in

September

Average price

£528
5/5-12/5
  • 5/5-12/5
  • 2 total stops
  • 22h 25m total
  • Washington, D.C. to London
Search Deals
2/8
  • 2/8
  • 2 total stops
  • 39h 35m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£23 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 March 2026
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Dulles Intl to Luton 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 14 March 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 2/6

20:30-22:10

2 stops20h 40m

London Luton

Tue 9/6

09:40-19:20

2 stops14h 40m

£508

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 20/4

20:20-22:15

3 stops20h 55m

London Luton

Thu 23/4

06:05-17:00

2 stops15h 55m

£532

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 31/3

13:20-22:10

2 stops27h 50m

London Luton

Tue 7/4

09:40-11:35

2 stops30h 55m

£569

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 5/8

17:15-09:00

1 stop10h 45m

London Luton

Wed 26/8

09:40-20:35

2 stops15h 55m

£581

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 7/6

21:00-11:25

1 stop9h 25m

London Luton

Tue 16/6

17:40-19:00

2 stops30h 20m

£632

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 10/5

20:55-13:25

1 stop11h 30m

London Luton

Sun 17/5

06:30-19:00

2 stops17h 30m

£636

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 13/5

17:15-09:00

1 stop10h 45m

London Luton

Mon 18/5

12:25-19:25

1 stop12h 00m

£655

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 24/6

17:15-09:00

1 stop10h 45m

London Luton

Wed 1/7

06:15-15:45

1 stop14h 30m

£672

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sat 8/8

17:15-08:20

1 stop10h 05m

London Luton

Sat 15/8

11:00-19:00

1 stop13h 00m

£704
Fastest return journey

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 15/5

17:15-08:25

1 stop10h 10m

London Luton

Tue 26/5

13:10-19:35

1 stop11h 25m

£798

Flights are sorted by cheapest return flights first.

Deals found on 10/3

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Dulles Intl to Luton

Have a flexible travel schedule? Discover the best time to fly to Luton from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to London Luton Airport

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

About 25% of weekly flights between Washington, D.C. and London have experienced delays in the past year, with the average delay time being 21 minutes.

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

Historically, flights departing in the morning 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?

Tuesday tends to have the lowest number of delays on this route, whereas Monday 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 Dulles Intl to Luton. 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 Dulles Intl to Luton that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Luton 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 London Luton Airport?

Book flights to London Luton Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Chelmsford
Eastbourne
Ipswich
Bedford
Romford
Southend-on-Sea

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

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 Luton from Dulles Intl today with Cheapflights!

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

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 Dulles Intl to Luton.

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

Yes! Cheapflights helps users easily find flights from Dulles Intl to Luton with no change fees.

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

Of course! You can now track prices for flights from Dulles Intl to Luton and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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