Cheap flights from Washington, D.C. to London from $279

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 11/18. 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
8:30 pm - 9:40 pm
BWI
-
STN
20h 10m
2 stops
Multiple Airlines Logo
1:15 pm - 7:25 pm
STN
-
BWI
35h 10m
2 stops
$729Multiple Airlines
Wed, Oct 7 - Sun, Oct 11
Multiple Airlines Logo
11:20 pm - 10:55 pm
BWI
-
STN
18h 35m
2 stops
Multiple Airlines Logo
7:00 am - 7:25 pm
STN
-
BWI
17h 25m
2 stops
$733Multiple Airlines
Thu, Sep 3 - Wed, Sep 9
Multiple Airlines Logo
8:30 pm - 12:30 am
BWI
-
STN
23h 00m
2 stops
Multiple Airlines Logo
3:10 pm - 7:25 pm
STN
-
BWI
33h 15m
2 stops
$735Multiple Airlines
Thu, Oct 1 - Fri, Oct 9
Multiple Airlines Logo
8:30 pm - 4:50 pm
BWI
-
STN
15h 20m
2 stops
Multiple Airlines Logo
1:15 pm - 7:25 pm
STN
-
BWI
35h 10m
2 stops
$736Multiple Airlines
Mon, Sep 7 - Sun, Sep 13
Multiple Airlines Logo
11:20 pm - 12:30 am
BWI
-
STN
20h 10m
2 stops
Multiple Airlines Logo
7:10 am - 10:15 pm
STN
-
BWI
20h 05m
2 stops
$738Multiple Airlines
Thu, Oct 8 - Tue, Oct 13
Multiple Airlines Logo
8:30 pm - 12:50 am
BWI
-
STN
23h 20m
2 stops
Multiple Airlines Logo
5:55 am - 10:15 pm
STN
-
BWI
21h 20m
2 stops
$747Multiple Airlines
Fri, Aug 21 - Sun, Sep 6
Multiple Airlines Logo
11:20 pm - 12:30 am
BWI
-
STN
20h 10m
2 stops
Multiple Airlines Logo
8:15 am - 7:25 pm
STN
-
BWI
16h 10m
2 stops
$748Multiple Airlines
Thu, Oct 1 - Mon, Oct 12
Multiple Airlines Logo
7:40 pm - 6:30 pm
BWI
-
STN
17h 50m
2 stops
Multiple Airlines Logo
8:15 am - 6:40 pm
STN
-
BWI
15h 25m
2 stops
$757Multiple Airlines
Wed, Nov 25 - Mon, Nov 30
Multiple Airlines Logo
11:20 pm - 12:30 am
BWI
-
STN
20h 10m
2 stops
Multiple Airlines Logo
12:45 pm - 7:25 pm
STN
-
BWI
35h 40m
2 stops
$762Multiple Airlines
Thu, Sep 3 - Tue, Sep 8
Turkish Airlines Logo
1:20 pm - 4:40 pm
IAD
-
STN
22h 20m
1 stop
Turkish Airlines Logo
5:35 pm - 11:35 am
STN
-
IAD
23h 00m
1 stop
$832Turkish Airlines
Wed, Oct 14 - Tue, Oct 20

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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
Sep 9
IAD9:45 pmWashington, D.C. Dulles Intl
31h 10m
1 stop
STN9:55 amLondon Stansted
Sep 23
STN5:45 pmLondon Stansted
22h 50m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$851
Turkish Airlines
Sep 8
IAD9:45 pmWashington, D.C. Dulles Intl
37h 55m
1 stop
STN4:40 pmLondon Stansted
Sep 15
STN5:35 pmLondon Stansted
23h 00m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$852
Turkish Airlines
Sep 12
IAD1:20 pmWashington, D.C. Dulles Intl
22h 20m
1 stop
STN4:40 pmLondon Stansted
Sep 17
STN5:35 pmLondon Stansted
23h 00m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$871

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

Our best Royal Air Maroc deals on Washington, D.C. 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 5
STN7:25 amLondon Stansted
16h 35m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$868
Royal Air Maroc
Oct 2
IAD9:00 pmWashington, D.C. Dulles Intl
28h 20m
1 stop
STN6:20 amLondon Stansted
Oct 11
STN7:25 amLondon Stansted
16h 35m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$870
Royal Air Maroc
Oct 2
IAD9:00 pmWashington, D.C. Dulles Intl
28h 20m
1 stop
STN6:20 amLondon Stansted
Oct 11
STN7:25 amLondon Stansted
16h 35m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$875

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 June 24, 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

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Wed 10/7

8:30 pm-9:40 pm

2 stops20h 10m

London Stansted

Sun 10/11

1:15 pm-7:25 pm

2 stops35h 10m

$729

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 9/3

11:20 pm-10:55 pm

2 stops18h 35m

London Stansted

Wed 9/9

7:00 am-7:25 pm

2 stops17h 25m

$733

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 10/1

8:30 pm-12:30 am

2 stops23h 00m

London Stansted

Fri 10/9

3:10 pm-7:25 pm

2 stops33h 15m

$735

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Mon 9/7

8:30 pm-4:50 pm

2 stops15h 20m

London Stansted

Sun 9/13

1:15 pm-7:25 pm

2 stops35h 10m

$736

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 10/8

11:20 pm-12:30 am

2 stops20h 10m

London Stansted

Tue 10/13

7:10 am-10:15 pm

2 stops20h 05m

$738

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Fri 8/21

8:30 pm-12:50 am

2 stops23h 20m

London Stansted

Sun 9/6

5:55 am-10:15 pm

2 stops21h 20m

$747

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 10/1

11:20 pm-12:30 am

2 stops20h 10m

London Stansted

Mon 10/12

8:15 am-7:25 pm

2 stops16h 10m

$748
Quickest round-trip

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Wed 11/25

7:40 pm-6:30 pm

2 stops17h 50m

London Stansted

Mon 11/30

8:15 am-6:40 pm

2 stops15h 25m

$757

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 9/3

11:20 pm-12:30 am

2 stops20h 10m

London Stansted

Tue 9/8

12:45 pm-7:25 pm

2 stops35h 40m

$762

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 10/14

1:20 pm-4:40 pm

1 stop22h 20m

London Stansted

Tue 10/20

5:35 pm-11:35 am

1 stop23h 00m

$832

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

How long does it take to fly to London Stansted Airport?

The flight from Washington, D.C. to London Stansted Airport depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Baltimore (a popular airport in Washington, D.C.) to London Heathrow Airport (the most popular airport in London Stansted Airport), then the flight time is 7h 05m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to London Heathrow Airport, then the average flight time is 8h 12m.

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.

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
Crawley
Croydon
Wembley
Stansted
Harrow
Slough
Watford
Cobham
Brentwood
Guildford
Ilford
Folkestone
Uxbridge
Romford

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.

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Fri 7/24
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