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Cheap flights from Washington, D.C. Dulles Intl Airport to London from $294

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 10/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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
7:40 pm - 9:55 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
21h 15m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
Multiple Airlines Logo
6:45 am - 6:30 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
$621Multiple Airlines
jue., nov. 5 - lun., nov. 9
Multiple Airlines Logo
8:20 pm - 10:25 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
21h 05m2 stops Kastrup Copenhagen Stockholm Arlanda
Multiple Airlines Logo
6:55 pm - 5:00 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
27h 05m2 stops Stockholm Arlanda Kastrup Copenhagen
$626Multiple Airlines
lun., oct. 12 - dom., oct. 18
Multiple Airlines Logo
8:40 pm - 11:15 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
22h 35m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
Multiple Airlines Logo
8:15 am - 6:30 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
15h 15m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
$628Multiple Airlines
vie., oct. 30 - mar., nov. 3
Multiple Airlines Logo
5:40 pm - 4:50 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
18h 10m2 stops Lisbon Humberto Delgado Madrid Barajas
Multiple Airlines Logo
6:30 pm - 4:15 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
25h 45m2 stops Madrid Barajas Lisbon Humberto Delgado
$631Multiple Airlines
dom., oct. 11 - mié., oct. 28
Multiple Airlines Logo
5:40 pm - 1:40 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
15h 00m2 stops Lisbon Humberto Delgado Madrid Barajas
Multiple Airlines Logo
9:10 am - 3:10 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
35h 00m2 stops Madrid Barajas Lisbon Humberto Delgado
$632Multiple Airlines
dom., sep. 27 - mar., oct. 13
Multiple Airlines Logo
7:40 pm - 11:15 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
22h 35m2 stops Reykjavik Keflavik Intl Helsinki-Vantaa
Multiple Airlines Logo
7:55 am - 6:30 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
15h 35m2 stops Helsinki-Vantaa Reykjavik Keflavik Intl
$637Multiple Airlines
mié., nov. 18 - jue., nov. 26
Multiple Airlines Logo
8:20 pm - 4:30 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
15h 10m2 stops Kastrup Copenhagen Stockholm Arlanda
Multiple Airlines Logo
9:00 pm - 5:00 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
25h 00m2 stops Stockholm Arlanda Kastrup Copenhagen
$638Multiple Airlines
mié., sep. 16 - mié., sep. 23
Multiple Airlines Logo
7:40 pm - 3:40 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
15h 00m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
Multiple Airlines Logo
8:15 am - 6:30 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
15h 15m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
$639Multiple Airlines
mié., nov. 4 - mié., nov. 11
Multiple Airlines Logo
7:40 pm - 8:45 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
20h 05m2 stops Reykjavik Keflavik Intl Gdansk Rebiechowo
Multiple Airlines Logo
6:00 am - 6:30 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
17h 30m2 stops Gdansk Rebiechowo Reykjavik Keflavik Intl
$640Multiple Airlines
vie., nov. 13 - lun., nov. 16
Multiple Airlines Logo
10:30 pm - 8:15 pmIAD  Washington, D.C. Dulles Intl-STN London Stansted
16h 45m2 stops Lisbon Humberto Delgado Madrid Barajas
Multiple Airlines Logo
8:50 pm - 8:35 pmSTN  London Stansted-IAD Washington, D.C. Dulles Intl
28h 45m2 stops Madrid Barajas Lisbon Humberto Delgado
$642Multiple Airlines
dom., nov. 1 - sáb., nov. 7

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Turkish Airlines flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to London Stansted Airport flight tickets
Turkish Airlines
Aug 17
IAD1:15 pmWashington, D.C. Dulles Intl
27h 55m
1 stop
STN10:10 pmLondon Stansted
Sep 17
STN5:35 pmLondon Stansted
22h 55m
1 stop
IAD11:30 amWashington, D.C. Dulles Intl
$854
Turkish Airlines
Aug 19
IAD1:15 pmWashington, D.C. Dulles Intl
22h 25m
1 stop
STN4:40 pmLondon Stansted
Sep 18
STN5:35 pmLondon Stansted
22h 55m
1 stop
IAD11:30 amWashington, D.C. Dulles Intl
$884
Turkish Airlines
Aug 18
IAD1:15 pmWashington, D.C. Dulles Intl
15h 40m
1 stop
STN9:55 amLondon Stansted
Sep 16
STN5:45 pmLondon Stansted
22h 45m
1 stop
IAD11:30 amWashington, D.C. Dulles Intl
$933

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to London Stansted 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 agosto 12, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

jue. 11/5

7:40 pm-9:55 pm

2 stops21h 15m

London Stansted

lun. 11/9

6:45 am-6:30 pm

2 stops16h 45m

$621

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

lun. 10/12

8:20 pm-10:25 pm

2 stops21h 05m

London Stansted

dom. 10/18

6:55 pm-5:00 pm

2 stops27h 05m

$626

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

vie. 10/30

8:40 pm-11:15 pm

2 stops22h 35m

London Stansted

mar. 11/3

8:15 am-6:30 pm

2 stops15h 15m

$628

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

dom. 10/11

5:40 pm-4:50 pm

2 stops18h 10m

London Stansted

mié. 10/28

6:30 pm-4:15 pm

2 stops25h 45m

$631

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

dom. 9/27

5:40 pm-1:40 pm

2 stops15h 00m

London Stansted

mar. 10/13

9:10 am-3:10 pm

2 stops35h 00m

$632

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

mié. 11/18

7:40 pm-11:15 pm

2 stops22h 35m

London Stansted

jue. 11/26

7:55 am-6:30 pm

2 stops15h 35m

$637

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

mié. 9/16

8:20 pm-4:30 pm

2 stops15h 10m

London Stansted

mié. 9/23

9:00 pm-5:00 pm

2 stops25h 00m

$638
Quickest round-trip

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

mié. 11/4

7:40 pm-3:40 pm

2 stops15h 00m

London Stansted

mié. 11/11

8:15 am-6:30 pm

2 stops15h 15m

$639

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

vie. 11/13

7:40 pm-8:45 pm

2 stops20h 05m

London Stansted

lun. 11/16

6:00 am-6:30 pm

2 stops17h 30m

$640

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

dom. 11/1

10:30 pm-8:15 pm

2 stops16h 45m

London Stansted

sáb. 11/7

8:50 pm-8:35 pm

2 stops28h 45m

$642

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 Stansted 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 airline that flies from Washington, D.C. Dulles Intl to London Stansted?

Lufthansa is the most popular carrier operating from Washington, D.C. Dulles Intl to London Stansted

When to book flights from Washington, D.C. Dulles Intl Airport to London Stansted 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 Stansted 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 Stansted Airport (IAD to STN) 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 Stansted Airport

Fastest flight time

12h 20m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to London Stansted Airport takes 12h 20m
There are no direct flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to London Stansted Airport.
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Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to London Stansted Airport

  • How far is Washington, D.C. Dulles Intl to London Stansted by plane?

    The distance between Washington, D.C. Dulles Intl and London Stansted is about 3683.3 mi. Typically, this will take 12h 20m by plane in normal conditions.

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to London Stansted Airport.

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

    The required travel and health documents for your London Stansted 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 Stansted 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
Hounslow
Gatwick
Milton Keynes
Luton
Hayes
Wembley
Croydon
Dover
Stansted
Richmond
Kingston upon Thames
Harrow
Watford
Cobham
Slough
Uxbridge
Worthing
Romford
Ilford
Bedford

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Washington, D.C..

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

All flight searches from Washington, D.C. to London on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Washington, D.C. to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Washington, D.C. and alert you when they change.

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