Cheap flights from Washington, D.C. Dulles Intl Airport to London from $281

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to London departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:50 pm - 8:10 pmIAD-LTN
22h 20m2 stops
Multiple Airlines Logo
2:40 pm - 6:50 pmLTN-IAD
33h 10m2 stops
$564Multiple Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 23
Multiple Airlines Logo
8:30 pm - 8:10 pmIAD-LTN
18h 40m2 stops
Multiple Airlines Logo
8:50 pm - 4:40 pmLTN-IAD
24h 50m2 stops
$565Multiple Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
Multiple Airlines Logo
8:30 pm - 8:10 pmIAD-LTN
18h 40m2 stops
Multiple Airlines Logo
8:50 pm - 3:50 pmLTN-IAD
24h 00m2 stops
$566Multiple Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Multiple Airlines Logo
5:05 pm - 8:35 amIAD-LTN
10h 30m1 stop
Multiple Airlines Logo
5:50 am - 3:35 pmLTN-IAD
14h 45m1 stop
$567Multiple Airlines
Find Deal
Mon, Dec 8 - Fri, Dec 12
Multiple Airlines Logo
9:00 am - 8:10 pmIAD-LTN
30h 10m3 stops
Multiple Airlines Logo
8:50 pm - 3:50 pmLTN-IAD
24h 00m2 stops
$570Multiple Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Multiple Airlines Logo
4:50 pm - 10:45 pmIAD-LTN
24h 55m2 stops
Multiple Airlines Logo
3:55 pm - 6:50 pmLTN-IAD
31h 55m3 stops
$571Multiple Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 23
Multiple Airlines Logo
7:40 pm - 5:05 pmIAD-LTN
16h 25m2 stops
Multiple Airlines Logo
6:00 am - 6:30 pmLTN-IAD
17h 30m2 stops
$572Multiple Airlines
Find Deal
Wed, Feb 11 - Mon, Feb 16
Multiple Airlines Logo
9:45 am - 7:55 pmIAD-LTN
29h 10m3 stops
Multiple Airlines Logo
8:50 pm - 5:40 pmLTN-IAD
24h 50m2 stops
$575Multiple Airlines
Find Deal
Sun, Mar 1 - Mon, Mar 9
Multiple Airlines Logo
7:40 pm - 3:25 pmIAD-LTN
14h 45m2 stops
Multiple Airlines Logo
9:00 am - 6:30 pmLTN-IAD
14h 30m2 stops
$576Multiple Airlines
Find Deal
Fri, Jan 16 - Tue, Jan 20
Multiple Airlines Logo
7:40 pm - 2:50 pmIAD-LTN
14h 10m1 stop
Multiple Airlines Logo
6:00 am - 6:30 pmLTN-IAD
17h 30m1 stop
$581Multiple Airlines
Find Deal
Sun, Mar 1 - Thu, Mar 5

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to London Luton Airport 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, momondo users made 832,500 searches. Data last updated November 13, 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

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 1/19

4:50 pm-8:10 pm

2 stops22h 20m

London Luton

Fri 1/23

2:40 pm-6:50 pm

2 stops33h 10m

$564

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 11/25

8:30 pm-8:10 pm

2 stops18h 40m

London Luton

Mon 12/1

8:50 pm-4:40 pm

2 stops24h 50m

$565

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 11/25

8:30 pm-8:10 pm

2 stops18h 40m

London Luton

Tue 12/2

8:50 pm-3:50 pm

2 stops24h 00m

$566

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 12/8

5:05 pm-8:35 am

1 stop10h 30m

London Luton

Fri 12/12

5:50 am-3:35 pm

1 stop14h 45m

$567

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 11/25

9:00 am-8:10 pm

3 stops30h 10m

London Luton

Tue 12/2

8:50 pm-3:50 pm

2 stops24h 00m

$570

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 1/19

4:50 pm-10:45 pm

2 stops24h 55m

London Luton

Fri 1/23

3:55 pm-6:50 pm

3 stops31h 55m

$571

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 2/11

7:40 pm-5:05 pm

2 stops16h 25m

London Luton

Mon 2/16

6:00 am-6:30 pm

2 stops17h 30m

$572

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 3/1

9:45 am-7:55 pm

3 stops29h 10m

London Luton

Mon 3/9

8:50 pm-5:40 pm

2 stops24h 50m

$575

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 1/16

7:40 pm-3:25 pm

2 stops14h 45m

London Luton

Tue 1/20

9:00 am-6:30 pm

2 stops14h 30m

$576

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 3/1

7:40 pm-2:50 pm

1 stop14h 10m

London Luton

Thu 3/5

6:00 am-6:30 pm

1 stop17h 30m

$581

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to London Luton Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to London Luton Airport?

According to our data, Tuesday is the cheapest day to fly to London Luton Airport from Washington, D.C. Dulles Intl Airport. The lowest ticket price found for a Tuesday departure recently was $743. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Washington, D.C. Dulles Intl Airport to London Luton Airport on a Friday will generally be more expensive and average around $1,027. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to London Luton Airport?

According to our data, the cheapest time of day to fly to London Luton Airport is in the evening. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to London Luton Airport in the evening for as low as $540. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to London Luton Airport are more costly in the afternoon, with an average ticket price of $810. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Washington, D.C. Dulles Intl Airport to London Luton Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to London Luton Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to London Luton Airport (IAD to LTN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to London Luton Airport

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to London Luton Airport. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to London Luton Airport.
  • How far is Washington, D.C. Dulles Intl to London Luton by plane?

    Washington, D.C. Dulles Intl and London Luton are 3659.1 mi apart from one another. Flights usually cover this in 9h 30m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to London Luton Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to London Luton Airport are updated daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to London Luton Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to London Luton Airport.

  • What documentation or ID do you need to fly to London Luton Airport?

    The required travel and health documents for your London Luton Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Luton Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Chelmsford
Wembley
Folkestone
Romford
Ilford
Cobham
Stansted
Harrow
Watford

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to London?

Finding the right flight to London from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to London with flexible booking policies on momondo?

Flights from Washington, D.C. to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to London?

momondo helps you find the best flight between Washington, D.C. and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Sat 12/13
Sat 12/20

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