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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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LTN
27 Feb — 6 Mar1
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 28 January 2026.

Fri 17/422:35
IAD
-
LTN
2 stops20h 15m
Multiple Airlines
Wed 22/416:30
LTN
-
IAD
2 stops27h 35m
Multiple Airlines
Deal found 26/1£385
Tue 3/317:30
IAD
-
LTN
1 stop15h 10m
Multiple Airlines
Wed 11/307:30
LTN
-
IAD
1 stop18h 30m
Multiple Airlines
Deal found 27/1£390
Tue 24/217:30
IAD
-
LTN
1 stop15h 10m
Multiple Airlines
Wed 4/307:30
LTN
-
IAD
1 stop18h 30m
Multiple Airlines
Deal found 27/1£395
Wed 25/222:30
IAD
-
LTN
1 stop19h 00m
Multiple Airlines
Wed 4/307:30
LTN
-
IAD
1 stop18h 30m
Multiple Airlines
Deal found 26/1£398
Wed 8/420:20
IAD
-
LTN
2 stops18h 35m
Multiple Airlines
Fri 17/420:35
LTN
-
IAD
2 stops25h 15m
Multiple Airlines
Deal found 26/1£412
Wed 25/209:45
IAD
-
LTN
2 stops28h 40m
Multiple Airlines
Sat 7/320:50
LTN
-
IAD
2 stops24h 00m
Multiple Airlines
Deal found 26/1£417
Sun 15/222:30
IAD
-
LTN
1 stop19h 10m
Multiple Airlines
Wed 25/207:30
LTN
-
IAD
1 stop18h 30m
Multiple Airlines
Deal found 27/1£420
Tue 3/220:30
IAD
-
LTN
2 stops18h 40m
Multiple Airlines
Sat 7/220:50
LTN
-
IAD
2 stops24h 50m
Multiple Airlines
Deal found 27/1£421
Tue 3/209:45
IAD
-
LTN
3 stops29h 25m
Multiple Airlines
Mon 9/220:50
LTN
-
IAD
2 stops24h 00m
Multiple Airlines
Deal found 27/1£423

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 28 January 2026.

Round-trip from

£385

One-way from

£248

Popular in

June

Cheapest in

September

Average price

£468
17/4-22/4
  • 17/4-22/4
  • 4 total stops
  • 47h 50m total
  • Washington, D.C. to London
Search Deals
20/5
  • 20/5
  • 3 total stops
  • 19h 55m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 28 January 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

Dulles Intl

Fly to

Luton

Route

Depart

Return

Price

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 24/2

17:30-13:40

1 stop15h 10m

London Luton

Wed 4/3

07:30-21:00

1 stop18h 30m

£395

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 8/2

16:30-19:55

3 stops22h 25m

London Luton

Tue 24/2

20:50-20:54

3 stops29h 04m

£432

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 17/4

20:20-00:30

2 stops23h 10m

London Luton

Sat 25/4

14:25-16:50

2 stops31h 25m

£443

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Thu 5/3

18:00-20:10

2 stops21h 10m

London Luton

Mon 9/3

20:50-20:26

3 stops27h 36m

£446

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Thu 23/4

20:30-12:45

1 stop11h 15m

London Luton

Sun 26/4

06:25-19:20

1 stop17h 55m

£489

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 27/2

20:30-20:10

2 stops18h 40m

London Luton

Thu 5/3

20:50-16:40

2 stops24h 50m

£497

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 18/3

18:05-08:35

1 stop10h 30m

London Luton

Mon 23/3

08:50-20:30

1 stop15h 40m

£518

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sat 21/3

20:40-13:00

1 stop12h 20m

London Luton

Wed 25/3

08:00-19:30

1 stop15h 30m

£537

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sat 18/4

20:30-13:05

1 stop11h 35m

London Luton

Fri 24/4

06:05-19:20

1 stop18h 15m

£537

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 3/4

17:55-17:25

2 stops18h 30m

London Luton

Wed 8/4

06:15-16:05

2 stops14h 50m

£537

Flights are sorted by cheapest return flights first.

Deals found on 26/1

Showing 1-10 of 22 results
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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 33% of weekly flights between Washington, D.C. and London have experienced delays in the past year, with the average delay time being 28 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?

Wednesday 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.

Which airline has the best punctuality record on Washington, D.C. to London flights?

Over the past year, Air Seoul have had the lowest number of delays on this route, with just 100% of flights being delayed.

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
Luton
Croydon
Wembley
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Watford
Colchester
Guildford
Chelmsford
Bedford
Crawley
Kingston upon Thames
Eastbourne
Romford
Ipswich

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

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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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