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Cheap flights from Washington, D.C. Dulles Intl Airport to London from $403

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 6/23. 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

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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
5:15 pm - 7:50 am
IAD
-
STN
9h 35m
1 stop
Multiple Airlines Logo
6:30 am - 3:45 pm
STN
-
IAD
14h 15m
1 stop
$891Multiple Airlines
Thu, Jul 23 - Tue, Jul 28
Multiple Airlines Logo
8:25 pm - 4:00 pm
IAD
-
STN
14h 35m
1 stop
Multiple Airlines Logo
9:10 am - 6:50 pm
STN
-
IAD
14h 40m
1 stop
$892Multiple Airlines
Tue, Aug 18 - Tue, Aug 25
Multiple Airlines Logo
8:30 pm - 12:10 am
IAD
-
STN
22h 40m
2 stops
Multiple Airlines Logo
8:10 am - 3:10 pm
STN
-
IAD
36h 00m
2 stops
$893Multiple Airlines
Tue, Jul 14 - Mon, Jul 20
Turkish Airlines Logo
9:45 pm - 4:40 pm
IAD
-
STN
37h 55m
1 stop
Turkish Airlines Logo
5:35 pm - 11:35 am
STN
-
IAD
23h 00m
1 stop
$894Turkish Airlines
Fri, Sep 11 - Thu, Sep 17
Multiple Airlines Logo
8:30 pm - 5:35 pm
IAD
-
STN
16h 05m
2 stops
Multiple Airlines Logo
6:30 am - 3:24 pm
STN
-
IAD
37h 54m
3 stops
$895Multiple Airlines
Fri, Jul 24 - Thu, Jul 30
Multiple Airlines Logo
9:55 am - 10:50 pm
IAD
-
STN
31h 55m
2 stops
Multiple Airlines Logo
10:10 pm - 8:24 pm
STN
-
IAD
27h 14m
2 stops
$896Multiple Airlines
Wed, Jul 8 - Sun, Jul 12
Multiple Airlines Logo
3:45 pm - 7:20 pm
IAD
-
STN
22h 35m
2 stops
Multiple Airlines Logo
6:35 am - 3:24 pm
STN
-
IAD
13h 49m
2 stops
$897Multiple Airlines
Fri, Jul 17 - Sun, Jul 26
Multiple Airlines Logo
9:55 am - 10:40 am
IAD
-
STN
19h 45m
2 stops
Multiple Airlines Logo
10:45 pm - 9:26 pm
STN
-
IAD
27h 41m
2 stops
$898Multiple Airlines
Mon, Jun 29 - Wed, Jul 1
Multiple Airlines Logo
9:45 am - 4:40 pm
IAD
-
STN
25h 55m
2 stops
Multiple Airlines Logo
9:20 pm - 1:35 pm
STN
-
IAD
21h 15m
2 stops
$899Multiple Airlines
Tue, Aug 4 - Wed, Aug 19
Multiple Airlines Logo
8:30 pm - 11:20 pm
IAD
-
STN
21h 50m
2 stops
Multiple Airlines Logo
1:15 pm - 7:20 pm
STN
-
IAD
35h 05m
2 stops
$900Multiple Airlines
Sun, Jul 19 - Sun, Jul 26

Royal Air Maroc flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport

Our best Royal Air Maroc deals on Washington, D.C. Dulles Intl Airport to London Stansted Airport flight tickets
Royal Air Maroc
Oct 2
IAD9:00 pmWashington, D.C. Dulles Intl
28h 20m
1 stop
STN6:20 amLondon Stansted
Oct 16
STN7:25 amLondon Stansted
16h 35m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$905
Royal Air Maroc
Sep 11
IAD9:00 pmWashington, D.C. Dulles Intl
28h 20m
1 stop
STN6:20 amLondon Stansted
Oct 4
STN7:25 amLondon Stansted
16h 35m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$928

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
Sep 11
IAD9:45 pmWashington, D.C. Dulles Intl
37h 55m
1 stop
STN4:40 pmLondon Stansted
Sep 17
STN5:35 pmLondon Stansted
23h 00m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$894
Turkish Airlines
Oct 28
IAD2:30 pmWashington, D.C. Dulles Intl
21h 50m
1 stop
STN4:20 pmLondon Stansted
Nov 4
STN10:55 amLondon Stansted
30h 50m
1 stop
IAD12:45 pmWashington, D.C. Dulles Intl
$903
Turkish Airlines
Sep 27
IAD1:20 pmWashington, D.C. Dulles Intl
15h 35m
1 stop
STN9:55 amLondon Stansted
Oct 3
STN5:45 pmLondon Stansted
22h 50m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$914

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 June 3, 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
Quickest round-trip

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Thu 7/23

5:15 pm-7:50 am

1 stop9h 35m

London Stansted

Tue 7/28

6:30 am-3:45 pm

1 stop14h 15m

$891

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 8/18

8:25 pm-4:00 pm

1 stop14h 35m

London Stansted

Tue 8/25

9:10 am-6:50 pm

1 stop14h 40m

$892

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 7/14

8:30 pm-12:10 am

2 stops22h 40m

London Stansted

Mon 7/20

8:10 am-3:10 pm

2 stops36h 00m

$893

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Fri 9/11

9:45 pm-4:40 pm

1 stop37h 55m

London Stansted

Thu 9/17

5:35 pm-11:35 am

1 stop23h 00m

$894

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Fri 7/24

8:30 pm-5:35 pm

2 stops16h 05m

London Stansted

Thu 7/30

6:30 am-3:24 pm

3 stops37h 54m

$895

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 7/8

9:55 am-10:50 pm

2 stops31h 55m

London Stansted

Sun 7/12

10:10 pm-8:24 pm

2 stops27h 14m

$896

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Fri 7/17

3:45 pm-7:20 pm

2 stops22h 35m

London Stansted

Sun 7/26

6:35 am-3:24 pm

2 stops13h 49m

$897

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 6/29

9:55 am-10:40 am

2 stops19h 45m

London Stansted

Wed 7/1

10:45 pm-9:26 pm

2 stops27h 41m

$898

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 8/4

9:45 am-4:40 pm

2 stops25h 55m

London Stansted

Wed 8/19

9:20 pm-1:35 pm

2 stops21h 15m

$899

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 7/19

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Sun 7/26

1:15 pm-7:20 pm

2 stops35h 05m

$900

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?

Royal Air Maroc 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

10h 55m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to London Stansted Airport takes 10h 55m
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.
Search flight deals

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 10h 55m 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
Dover
Hayes
Crawley
Croydon
Wembley
Slough
Stansted
Harrow
Dartford
Brentwood
Watford
Ilford
Cobham
Folkestone
Uxbridge
Guildford

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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