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Cheap flights from Washington, D.C. Dulles Intl Airport to London from $380

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 7/15. 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
5:15 pm - 7:50 am
IAD
-
STN
9h 35m
1 stop
Multiple Airlines Logo
10:05 pm - 7:00 pm
STN
-
IAD
25h 55m
2 stops
$882Multiple Airlines
Sat, Sep 26 - Sun, Oct 4
Turkish Airlines Logo
9:45 pm - 10:10 pm
IAD
-
STN
19h 25m
1 stop
Turkish Airlines Logo
5:20 pm - 11:45 am
STN
-
IAD
23h 25m
1 stop
$883Turkish Airlines
Mon, Oct 12 - Fri, Dec 4
Multiple Airlines Logo
5:15 pm - 7:50 am
IAD
-
STN
9h 35m
1 stop
Multiple Airlines Logo
2:45 pm - 3:10 pm
STN
-
IAD
29h 25m
2 stops
$884Multiple Airlines
Tue, Aug 11 - Thu, Aug 20
Multiple Airlines Logo
11:20 pm - 5:10 pm
IAD
-
STN
12h 50m
2 stops
Multiple Airlines Logo
9:55 am - 7:20 pm
STN
-
IAD
14h 25m
2 stops
$885Multiple Airlines
Wed, Jul 22 - Wed, Jul 29
Multiple Airlines Logo
8:30 pm - 11:20 pm
IAD
-
STN
21h 50m
2 stops
Multiple Airlines Logo
6:35 am - 10:15 pm
STN
-
IAD
20h 40m
2 stops
$886Multiple Airlines
Thu, Jul 16 - Sun, Jul 26
Multiple Airlines Logo
11:20 pm - 7:30 pm
IAD
-
STN
15h 10m
3 stops
Multiple Airlines Logo
3:10 pm - 7:00 pm
STN
-
IAD
32h 50m
2 stops
$887Multiple Airlines
Wed, Oct 7 - Tue, Oct 13
Multiple Airlines Logo
8:30 pm - 5:10 pm
IAD
-
STN
15h 40m
2 stops
Multiple Airlines Logo
9:55 am - 7:20 pm
STN
-
IAD
14h 25m
2 stops
$888Multiple Airlines
Wed, Jul 22 - Wed, Jul 29
Turkish Airlines Logo
9:45 pm - 10:10 pm
IAD
-
STN
19h 25m
1 stop
Turkish Airlines Logo
10:50 am - 7:50 pm
STN
-
IAD
38h 00m
1 stop
$889Turkish Airlines
Fri, Oct 2 - Wed, Oct 7
Multiple Airlines Logo
5:15 pm - 7:50 am
IAD
-
STN
9h 35m
1 stop
Multiple Airlines Logo
7:05 am - 7:25 pm
STN
-
IAD
17h 20m
2 stops
$890Multiple Airlines
Thu, Sep 17 - Mon, Sep 28
Multiple Airlines Logo
9:55 am - 8:00 pm
IAD
-
STN
29h 05m
2 stops
Multiple Airlines Logo
5:35 pm - 3:10 pm
STN
-
IAD
26h 35m
2 stops
$891Multiple Airlines
Tue, Jul 14 - Thu, Jul 16

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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
Oct 12
IAD9:45 pmWashington, D.C. Dulles Intl
19h 25m
1 stop
STN10:10 pmLondon Stansted
Dec 2
STN10:55 amLondon Stansted
29h 50m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$883
Turkish Airlines
Oct 2
IAD9:45 pmWashington, D.C. Dulles Intl
19h 25m
1 stop
STN10:10 pmLondon Stansted
Oct 7
STN10:50 amLondon Stansted
38h 00m
1 stop
IAD7:50 pmWashington, D.C. Dulles Intl
$889
Turkish Airlines
Sep 17
IAD9:45 pmWashington, D.C. Dulles Intl
31h 10m
1 stop
STN9:55 amLondon Stansted
Sep 21
STN10:50 amLondon Stansted
29h 45m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$892

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 9
IAD9:00 pmWashington, D.C. Dulles Intl
28h 20m
1 stop
STN6:20 amLondon Stansted
Oct 18
STN7:25 amLondon Stansted
16h 35m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$896
Royal Air Maroc
Oct 9
IAD9:00 pmWashington, D.C. Dulles Intl
28h 20m
1 stop
STN6:20 amLondon Stansted
Oct 18
STN7:25 amLondon Stansted
16h 35m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$926

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 16, 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 - STN

IADSTN

Washington, D.C. Dulles Intl

Sat 9/26

5:15 pm-7:50 am

1 stop9h 35m

London Stansted

Sun 10/4

10:05 pm-7:00 pm

2 stops25h 55m

$882

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 10/12

9:45 pm-10:10 pm

1 stop19h 25m

London Stansted

Fri 12/4

5:20 pm-11:45 am

1 stop23h 25m

$883

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 8/11

5:15 pm-7:50 am

1 stop9h 35m

London Stansted

Thu 8/20

2:45 pm-3:10 pm

2 stops29h 25m

$884

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 7/22

11:20 pm-5:10 pm

2 stops12h 50m

London Stansted

Wed 7/29

9:55 am-7:20 pm

2 stops14h 25m

$885

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Thu 7/16

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Sun 7/26

6:35 am-10:15 pm

2 stops20h 40m

$886

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 10/7

11:20 pm-7:30 pm

3 stops15h 10m

London Stansted

Tue 10/13

3:10 pm-7:00 pm

2 stops32h 50m

$887

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 7/22

8:30 pm-5:10 pm

2 stops15h 40m

London Stansted

Wed 7/29

9:55 am-7:20 pm

2 stops14h 25m

$888

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Fri 10/2

9:45 pm-10:10 pm

1 stop19h 25m

London Stansted

Wed 10/7

10:50 am-7:50 pm

1 stop38h 00m

$889
Quickest round-trip

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Thu 9/17

5:15 pm-7:50 am

1 stop9h 35m

London Stansted

Mon 9/28

7:05 am-7:25 pm

2 stops17h 20m

$890

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 7/14

9:55 am-8:00 pm

2 stops29h 05m

London Stansted

Thu 7/16

5:35 pm-3:10 pm

2 stops26h 35m

$891

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?

Turkish Airlines 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

9h 35m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to London Stansted Airport takes 9h 35m
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 9h 35m 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
Stansted
Harrow
Slough
Brentwood
Watford
Cobham
Guildford
Ilford
Folkestone
Uxbridge
Romford

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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