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Cheap flights from Washington, D.C. Dulles Intl Airport to London Luton Airport from £277

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LTN
11 Jan — 18 Jan1
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 12 December 2025.

Tue 30/1221:00IAD - LTN
1 stop18h 05mMultiple Airlines
Tue 13/109:00LTN - IAD
1 stop11h 35mMultiple Airlines
Deal found 11/12£563
Wed 31/1219:40IAD - LTN
2 stops15h 35mMultiple Airlines
Wed 14/108:00LTN - IAD
1 stop15h 30mMultiple Airlines
Deal found 9/12£665
Mon 29/1217:05IAD - LTN
1 stop10h 30mMultiple Airlines
Tue 13/109:00LTN - IAD
1 stop11h 35mMultiple Airlines
Deal found 11/12£733
Tue 30/1220:30IAD - LTN
2 stops18h 40mMultiple Airlines
Mon 5/120:50LTN - IAD
3 stops28h 36mMultiple Airlines
Deal found 11/12£767
Mon 15/1219:40IAD - LTN
2 stops21h 10mMultiple Airlines
Wed 17/1212:50LTN - IAD
2 stops31h 25mMultiple Airlines
Deal found 11/12£822
Fri 12/1218:00IAD - LTN
2 stops19h 15mMultiple Airlines
Sun 14/1214:35LTN - IAD
2 stops31h 30mMultiple Airlines
Deal found 11/12£828
Thu 11/1219:40IAD - LTN
2 stops14h 10mMultiple Airlines
Wed 17/1208:15LTN - IAD
2 stops15h 15mMultiple Airlines
Deal found 10/12£829
Tue 30/1219:40IAD - LTN
1 stop14h 10mMultiple Airlines
Wed 14/108:00LTN - IAD
1 stop15h 30mMultiple Airlines
Deal found 11/12£832
Mon 15/1219:40IAD - LTN
2 stops16h 15mMultiple Airlines
Fri 19/1206:00LTN - IAD
2 stops20h 00mMultiple Airlines
Deal found 11/12£841
Mon 15/1219:40IAD - LTN
2 stops16h 15mMultiple Airlines
Sun 21/1206:00LTN - IAD
1 stop17h 30mMultiple Airlines
Deal found 9/12£843

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 12 December 2025.

Round-trip from

£428

One-way from

£277

Popular in

December

Cheapest in

September

Average price

£730
11/3-18/3
  • 11/3-18/3
  • 2 total stops
  • 27h 45m total
  • Washington, D.C. to London
Search Deals
15/2
  • 15/2
  • 2 total stops
  • 19h 00m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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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 12 December 2025.
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

Mon 2/2

20:30-18:15

2 stops16h 45m

London Luton

Fri 6/2

14:35-18:50

2 stops33h 15m

£436

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 11/1

20:30-18:15

2 stops16h 45m

London Luton

Wed 14/1

18:55-15:50

2 stops25h 55m

£439

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 18/2

19:40-17:05

2 stops16h 25m

London Luton

Tue 24/2

09:00-18:30

2 stops14h 30m

£460

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 28/1

19:40-15:20

2 stops14h 40m

London Luton

Mon 2/2

07:00-18:30

2 stops16h 30m

£462

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 15/2

19:40-14:50

1 stop14h 10m

London Luton

Mon 23/2

08:00-18:30

1 stop15h 30m

£469

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 20/1

19:40-17:50

2 stops17h 10m

London Luton

Mon 26/1

07:20-18:30

2 stops16h 10m

£473

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sat 17/1

19:40-16:05

2 stops15h 25m

London Luton

Sat 24/1

09:00-18:30

2 stops14h 30m

£480

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 11/3

20:40-12:55

1 stop12h 15m

London Luton

Sun 15/3

06:00-19:30

1 stop17h 30m

£489

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sat 14/3

21:30-18:15

2 stops16h 45m

London Luton

Wed 18/3

18:55-16:50

2 stops25h 55m

£491

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 7/1

19:40-12:55

1 stop12h 15m

London Luton

Wed 14/1

08:00-18:30

1 stop15h 30m

£518

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 24 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 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?

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
Croydon
Slough
Hounslow
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Watford
Hayes
Crawley
Winchester
Deal
Bedford
Romford
Chichester
Guildford
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?

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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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