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Cheap flights from Washington, D.C. to London from $261

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. to London departing on 10/15. 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. to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:20 pm - 12:50 am
IAD
-
STN
23h 30m
2 stops
Multiple Airlines Logo
6:35 pm - 5:00 pm
STN
-
IAD
27h 25m
2 stops
$619Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
8:30 pm - 5:00 pm
IAD
-
STN
15h 30m
2 stops
Multiple Airlines Logo
1:40 pm - 5:15 pm
STN
-
IAD
32h 35m
2 stops
$621Multiple Airlines
Wed, Nov 4 - Sun, Nov 8
Multiple Airlines Logo
7:40 pm - 11:15 pm
IAD
-
STN
22h 35m
2 stops
Multiple Airlines Logo
7:55 am - 6:30 pm
STN
-
IAD
15h 35m
2 stops
$621Multiple Airlines
Wed, Nov 18 - Thu, Nov 26
Multiple Airlines Logo
8:20 pm - 12:50 am
IAD
-
STN
23h 30m
2 stops
Multiple Airlines Logo
6:35 pm - 5:00 pm
STN
-
IAD
27h 25m
3 stops
$624Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
8:30 pm - 7:15 pm
IAD
-
STN
17h 45m
2 stops
Multiple Airlines Logo
6:30 am - 3:24 pm
STN
-
IAD
37h 54m
3 stops
$624Multiple Airlines
Mon, Aug 17 - Thu, Aug 27
Multiple Airlines Logo
5:40 pm - 3:30 pm
IAD
-
STN
16h 50m
2 stops
Multiple Airlines Logo
3:55 pm - 8:35 pm
STN
-
IAD
33h 40m
2 stops
$626Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
5:40 pm - 6:30 pm
IAD
-
STN
19h 50m
2 stops
Multiple Airlines Logo
6:55 pm - 3:10 pm
STN
-
IAD
25h 15m
2 stops
$628Multiple Airlines
Mon, Oct 12 - Tue, Oct 20
Multiple Airlines Logo
5:05 pm - 4:55 pm
IAD
-
STN
18h 50m
2 stops
Multiple Airlines Logo
8:30 am - 9:35 pm
STN
-
IAD
17h 05m
2 stops
$632Multiple Airlines
Fri, Oct 23 - Wed, Oct 28
Multiple Airlines Logo
12:25 pm - 11:45 am
IAD
-
STN
18h 20m
2 stops
Multiple Airlines Logo
7:40 pm - 5:00 pm
STN
-
IAD
26h 20m
2 stops
$632Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
Multiple Airlines Logo
10:35 pm - 9:00 pm
IAD
-
STN
17h 25m
2 stops
Multiple Airlines Logo
3:55 pm - 8:35 pm
STN
-
IAD
33h 40m
2 stops
$633Multiple Airlines
Tue, Sep 15 - Tue, Sep 22

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

Our best Turkish Airlines deals on Washington, D.C. to London Stansted Airport flight tickets
Turkish Airlines
Aug 9
IAD1:20 pmWashington, D.C. Dulles Intl
15h 35m
1 stop
STN9:55 amLondon Stansted
Oct 7
STN5:45 pmLondon Stansted
31h 00m
1 stop
IAD7:45 pmWashington, D.C. Dulles Intl
$852
Turkish Airlines
Aug 11
IAD1:15 pmWashington, D.C. Dulles Intl
15h 40m
1 stop
STN9:55 amLondon Stansted
Oct 7
STN5:45 pmLondon Stansted
22h 45m
1 stop
IAD11:30 amWashington, D.C. Dulles Intl
$882
Turkish Airlines
Aug 16
IAD1:15 pmWashington, D.C. Dulles Intl
27h 55m
1 stop
STN10:10 pmLondon Stansted
Oct 19
STN10:50 amLondon Stansted
29h 40m
1 stop
IAD11:30 amWashington, D.C. Dulles Intl
$892

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 August 2, 2026.
Use the filters below to find and compare flights from Washington, D.C. 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

Mon 9/21

8:20 pm-12:50 am

2 stops23h 30m

London Stansted

Tue 9/29

6:35 pm-5:00 pm

2 stops27h 25m

$619

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 11/4

8:30 pm-5:00 pm

2 stops15h 30m

London Stansted

Sun 11/8

1:40 pm-5:15 pm

2 stops32h 35m

$621

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 11/18

7:40 pm-11:15 pm

2 stops22h 35m

London Stansted

Thu 11/26

7:55 am-6:30 pm

2 stops15h 35m

$621

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 9/21

8:20 pm-12:50 am

2 stops23h 30m

London Stansted

Tue 9/29

6:35 pm-5:00 pm

3 stops27h 25m

$624

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 8/17

8:30 pm-7:15 pm

2 stops17h 45m

London Stansted

Thu 8/27

6:30 am-3:24 pm

3 stops37h 54m

$624

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 9/21

5:40 pm-3:30 pm

2 stops16h 50m

London Stansted

Tue 9/29

3:55 pm-8:35 pm

2 stops33h 40m

$626

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 10/12

5:40 pm-6:30 pm

2 stops19h 50m

London Stansted

Tue 10/20

6:55 pm-3:10 pm

2 stops25h 15m

$628
Quickest round-trip

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Fri 10/23

5:05 pm-4:55 pm

2 stops18h 50m

London Stansted

Wed 10/28

8:30 am-9:35 pm

2 stops17h 05m

$632

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 9/29

12:25 pm-11:45 am

2 stops18h 20m

London Stansted

Tue 10/6

7:40 pm-5:00 pm

2 stops26h 20m

$632

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 9/15

10:35 pm-9:00 pm

2 stops17h 25m

London Stansted

Tue 9/22

3:55 pm-8:35 pm

2 stops33h 40m

$633

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. 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. to London Stansted?

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

When to book flights from Washington, D.C. to London Stansted Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to London Stansted Airport (WAS to STN) flight deals and tips

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

Fastest flight time

9h 35m

Direct flights

None
The fastest flight from Washington, D.C. to London Stansted Airport takes 9h 35m
There are no direct flights from Washington, D.C. to London Stansted Airport. There are no popular flight routes from Washington, D.C. to London Stansted Airport.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to London Stansted Airport

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

    A flight from Washington, D.C. to London Stansted will travel around 3668.5 mi. In terms of flight time, this usually takes a little over 9h 35m.

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. 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
Dover
Croydon
Wembley
Stansted
Kingston upon Thames
Watford
Slough
Harrow
Cobham
Richmond
Uxbridge
Guildford
Worthing
Romford
Ilford

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to London. momondo saves you time and could save you money on your trip.

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

Yes. All flights to London from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Of course. momondo tracks the price of Washington, D.C. to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London Stansted Airport trip

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