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Cheap flights from Washington, D.C. to London from $206

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 10/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to London

Cheap round-trip flights

Logo
8:40 pm - 8:05 pmIAD-STN
19h 25m2 stops
Logo
8:30 am - 6:30 pmSTN-IAD
15h 00m2 stops
$492
Find Deal
Thu, Oct 30 - Mon, Nov 3
Logo
7:40 pm - 11:00 pmIAD-STN
22h 20m2 stops
Logo
6:30 am - 6:30 pmSTN-IAD
17h 00m2 stops
$502
Find Deal
Sun, Nov 2 - Tue, Nov 11
Logo
8:40 pm - 6:20 pmIAD-STN
17h 40m2 stops
Logo
6:30 am - 6:30 pmSTN-IAD
17h 00m2 stops
$503
Find Deal
Mon, Oct 27 - Mon, Nov 3
Logo
7:40 pm - 11:00 pmIAD-STN
22h 20m2 stops
Logo
6:30 am - 6:30 pmSTN-IAD
17h 00m2 stops
$508
Find Deal
Sun, Nov 2 - Sat, Nov 8
Logo
8:30 pm - 4:35 pmIAD-STN
15h 05m2 stops
Logo
5:30 am - 6:30 pmSTN-IAD
17h 00m2 stops
$522
Find Deal
Fri, Oct 24 - Sun, Nov 2
Logo
9:35 am - 12:00 pmIAD-STN
21h 25m2 stops
Logo
9:45 pm - 9:05 pmSTN-IAD
28h 20m2 stops
$526
Find Deal
Tue, Oct 14 - Tue, Oct 21
Logo
6:00 am - 12:00 pmDCA-STN
25h 00m2 stops
Logo
9:45 pm - 9:51 pmSTN-DCA
29h 06m2 stops
$526
Find Deal
Tue, Oct 14 - Tue, Oct 21
Logo
6:50 pm - 10:40 amBWI-STN
10h 50m1 stop
Logo
10:35 pm - 5:40 pmSTN-BWI
24h 05m2 stops
$528
Find Deal
Mon, Oct 13 - Tue, Oct 21
PLAY Logo
6:50 pm - 10:40 amBWI-STN
10h 50m1 stop
PLAY Logo
11:40 am - 5:40 pmSTN-BWI
11h 00m1 stop
$536PLAY
Find Deal
Mon, Oct 13 - Wed, Oct 22
PLAY Logo
6:50 pm - 10:40 amBWI-STN
10h 50m1 stop
PLAY Logo
11:40 am - 5:40 pmSTN-BWI
11h 00m1 stop
$540PLAY
Find Deal
Tue, Oct 14 - Thu, Oct 16

PLAY flights from Washington, D.C. to London Stansted Airport

Our best PLAY deals on Washington, D.C. to London Stansted Airport flight tickets
PLAY
Sep 23
BWI6:50 pmBaltimore/Washington
10h 50m
1 stop
STN10:40 amLondon Stansted
Sep 25
STN11:40 amLondon Stansted
11h 00m
1 stop
BWI5:40 pmBaltimore/Washington
$527
Find similar
PLAY
Sep 20
BWI6:50 pmBaltimore/Washington
10h 50m
1 stop
STN10:40 amLondon Stansted
Sep 24
STN11:40 amLondon Stansted
11h 00m
1 stop
BWI5:40 pmBaltimore/Washington
$528
Find similar
PLAY
Oct 13
BWI6:50 pmBaltimore/Washington
10h 50m
1 stop
STN10:40 amLondon Stansted
Oct 22
STN11:40 amLondon Stansted
11h 00m
1 stop
BWI5:40 pmBaltimore/Washington
$536
Find similar

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 September 15, 2025.
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

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Thu 10/30

8:40 pm-8:05 pm

2 stops19h 25m

London Stansted

Mon 11/3

8:30 am-6:30 pm

2 stops15h 00m

$492

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 11/2

7:40 pm-11:00 pm

2 stops22h 20m

London Stansted

Tue 11/11

6:30 am-6:30 pm

2 stops17h 00m

$502

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 10/27

8:40 pm-6:20 pm

2 stops17h 40m

London Stansted

Mon 11/3

6:30 am-6:30 pm

2 stops17h 00m

$503

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 11/2

7:40 pm-11:00 pm

2 stops22h 20m

London Stansted

Sat 11/8

6:30 am-6:30 pm

2 stops17h 00m

$508

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Fri 10/24

8:30 pm-4:35 pm

2 stops15h 05m

London Stansted

Sun 11/2

5:30 am-6:30 pm

2 stops17h 00m

$522

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 10/14

9:35 am-12:00 pm

2 stops21h 25m

London Stansted

Tue 10/21

9:45 pm-9:05 pm

2 stops28h 20m

$526

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Tue 10/14

6:00 am-12:00 pm

2 stops25h 00m

London Stansted

Tue 10/21

9:45 pm-9:51 pm

2 stops29h 06m

$526

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Mon 10/13

6:50 pm-10:40 am

1 stop10h 50m

London Stansted

Tue 10/21

10:35 pm-5:40 pm

2 stops24h 05m

$528

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Mon 10/13

6:50 pm-10:40 am

1 stop10h 50m

London Stansted

Wed 10/22

11:40 am-5:40 pm

1 stop11h 00m

$536

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Tue 10/14

6:50 pm-10:40 am

1 stop10h 50m

London Stansted

Thu 10/16

11:40 am-5:40 pm

1 stop11h 00m

$540

Flights are sorted by cheapest round-trip flights 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 day to depart on your flight to London Stansted Airport?

The cheapest day to depart on your flight to London Stansted Airport is on a Tuesday when prices can be found for as low as $457. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $631.

What is the cheapest time of day to depart on your flight to London Stansted Airport?

Our most recent data shows that the best time of day to fly to London Stansted Airport is in the afternoon. Flights from Washington, D.C. to London Stansted Airport during this time can be as low as $509. In contrast, the most expensive time of day to depart to London Stansted Airport is in the evening when prices are around $513.

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

Direct flights

None
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.
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  • 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 10h 50m.

  • 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 many operators does momondo search for flights from Washington, D.C. to London Stansted Airport?

  • 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.

  • What is the most popular airline from Washington, D.C. to London Stansted Airport?

Best airlines flying from Washington, D.C. to London Stansted Airport

Compare and see reviews for airlines that fly from Washington, D.C. to London Stansted Airport with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom $313Free CancellationRating
7.0
103 reviews
Search PLAY flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Dover
Luton
Slough
Milton Keynes
Hayes
Guildford
Dartford
Crawley
Stansted
Chelmsford
Brentwood
Ilford
Folkestone
Colchester
Watford
Wembley
Richmond
Croydon

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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