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Cheap flights from London Luton Airport to Washington, D.C. Dulles Intl Airport from £372

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — IAD
1 Apr — 8 Apr1
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 2 March 2026.

Wed 15/406:15
LTN
-
IAD
2 stops18h 05m
Multiple Airlines
Wed 22/420:30
IAD
-
LTN
2 stops19h 45m
Multiple Airlines
Deal found 1/3£435
Tue 28/413:40
LTN
-
IAD
2 stops35h 55m
Multiple Airlines
Sun 17/523:20
IAD
-
LTN
2 stops18h 00m
Multiple Airlines
Deal found 28/2£469
Mon 23/306:00
LTN
-
IAD
1 stop14h 35m
Multiple Airlines
Tue 31/321:05
IAD
-
LTN
1 stop11h 20m
Multiple Airlines
Deal found 26/2£471
Tue 14/413:10
LTN
-
IAD
1 stop11h 25m
Multiple Airlines
Tue 21/417:15
IAD
-
LTN
1 stop11h 00m
Multiple Airlines
Deal found 28/2£473
Thu 7/508:00
LTN
-
IAD
2 stops17h 35m
Multiple Airlines
Sun 17/523:20
IAD
-
LTN
2 stops18h 00m
Multiple Airlines
Deal found 26/2£475
Thu 16/413:35
LTN
-
IAD
2 stops30h 35m
Multiple Airlines
Wed 22/420:30
IAD
-
LTN
2 stops15h 05m
Multiple Airlines
Deal found 28/2£477
Thu 21/509:25
LTN
-
IAD
2 stops14h 55m
Multiple Airlines
Tue 26/520:30
IAD
-
LTN
2 stops14h 00m
Multiple Airlines
Deal found 26/2£478
Thu 26/309:00
LTN
-
IAD
1 stop11h 35m
Multiple Airlines
Sat 4/417:15
IAD
-
LTN
1 stop10h 05m
Multiple Airlines
Deal found 27/2£480
Mon 13/408:15
LTN
-
IAD
1 stop12h 30m
Multiple Airlines
Mon 20/417:15
IAD
-
LTN
1 stop11h 00m
Multiple Airlines
Deal found 27/2£480
Sat 28/321:00
LTN
-
IAD
2 stops24h 55m
Multiple Airlines
Mon 6/420:20
IAD
-
LTN
3 stops21h 30m
Multiple Airlines
Deal found 1/3£489
Thu 26/309:00
LTN
-
IAD
1 stop11h 35m
Multiple Airlines
Thu 2/417:15
IAD
-
LTN
1 stop11h 15m
Multiple Airlines
Deal found 28/2£495

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 2 March 2026.

Round-trip from

£435

One-way from

£372

Popular in

July

Cheapest in

January

Average price

£507
15/4-22/4
  • 15/4-22/4
  • 4 total stops
  • 37h 50m total
  • London to Washington, D.C.
Search Deals
8/6
  • 8/6
  • 3 total stops
  • 25h 51m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 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 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 2 March 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

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Sun 7/6

06:30-19:00

2 stops17h 30m

Washington, D.C. Dulles Intl

Mon 6/7

17:15-09:15

1 stop11h 00m

£557

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 16/4

08:00-20:35

2 stops17h 35m

Washington, D.C. Dulles Intl

Wed 22/4

17:15-09:00

1 stop10h 45m

£589

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 16/4

17:30-15:10

2 stops26h 40m

Washington, D.C. Dulles Intl

Sun 19/4

20:55-11:25

1 stop9h 30m

£602

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Fri 31/7

21:05-15:10

2 stops23h 05m

Washington, D.C. Dulles Intl

Mon 17/8

17:15-09:15

1 stop11h 00m

£761

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 1/4

08:00-19:00

2 stops16h 00m

Washington, D.C. Dulles Intl

Tue 7/4

08:15-13:45

3 stops24h 30m

£777

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Fri 12/6

06:20-15:45

1 stop14h 25m

Washington, D.C. Dulles Intl

Wed 8/7

09:45-19:35

3 stops28h 50m

£802

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Sun 19/4

06:25-19:20

1 stop17h 55m

Washington, D.C. Dulles Intl

Sat 25/4

20:30-13:05

1 stop11h 35m

£802

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 12/3

06:00-19:30

1 stop17h 30m

Washington, D.C. Dulles Intl

Tue 17/3

20:40-14:50

1 stop14h 10m

£808

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Fri 17/4

06:05-19:20

1 stop18h 15m

Washington, D.C. Dulles Intl

Thu 23/4

20:30-12:45

1 stop11h 15m

£827

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 27/5

06:15-19:20

1 stop18h 05m

Washington, D.C. Dulles Intl

Tue 2/6

20:30-12:55

1 stop11h 25m

£843

Flights are sorted by cheapest return flights first.

Deals found on 28/2

Showing 1-10 of 20 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 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
Sterling
College Park

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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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