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Cheap flights from Washington, D.C. to London from $318

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 5/16. 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
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 - 12:20 am
BWI
-
STN
22h 50m
2 stops
Multiple Airlines Logo
7:05 am - 7:25 pm
STN
-
BWI
17h 20m
2 stops
$663Multiple Airlines
Mon, May 11 - Tue, May 19
Multiple Airlines Logo
8:30 pm - 11:20 pm
BWI
-
STN
21h 50m
2 stops
Multiple Airlines Logo
7:10 am - 10:15 pm
STN
-
BWI
20h 05m
2 stops
$694Multiple Airlines
Sun, May 10 - Tue, May 19
Multiple Airlines Logo
8:30 pm - 11:20 pm
BWI
-
STN
21h 50m
2 stops
Multiple Airlines Logo
7:10 am - 7:25 pm
STN
-
BWI
17h 15m
2 stops
$697Multiple Airlines
Sun, May 10 - Tue, May 19
Multiple Airlines Logo
8:30 pm - 11:20 pm
BWI
-
STN
21h 50m
2 stops
Multiple Airlines Logo
7:10 am - 10:15 pm
STN
-
BWI
20h 05m
2 stops
$699Multiple Airlines
Sun, May 10 - Tue, May 19
Multiple Airlines Logo
8:30 pm - 11:20 pm
BWI
-
STN
21h 50m
2 stops
Multiple Airlines Logo
10:45 am - 10:15 pm
STN
-
BWI
16h 30m
2 stops
$700Multiple Airlines
Sun, May 10 - Tue, May 19
Multiple Airlines Logo
8:30 pm - 11:20 pm
BWI
-
STN
21h 50m
2 stops
Multiple Airlines Logo
7:10 am - 10:15 pm
STN
-
BWI
20h 05m
2 stops
$701Multiple Airlines
Sun, May 10 - Tue, May 19
Multiple Airlines Logo
8:30 pm - 11:20 pm
BWI
-
STN
21h 50m
2 stops
Multiple Airlines Logo
7:10 am - 10:15 pm
STN
-
BWI
20h 05m
2 stops
$703Multiple Airlines
Sun, May 10 - Tue, May 19
Multiple Airlines Logo
8:30 pm - 11:20 pm
BWI
-
STN
21h 50m
2 stops
Multiple Airlines Logo
7:10 am - 10:15 pm
STN
-
BWI
20h 05m
2 stops
$704Multiple Airlines
Sun, May 10 - Tue, May 19
Multiple Airlines Logo
8:30 pm - 11:20 pm
IAD
-
STN
21h 50m
2 stops
Multiple Airlines Logo
4:25 pm - 3:10 pm
STN
-
IAD
27h 45m
2 stops
$705Multiple Airlines
Sun, May 10 - Wed, Jun 3
Multiple Airlines Logo
8:30 pm - 11:20 pm
BWI
-
STN
21h 50m
2 stops
Multiple Airlines Logo
7:10 am - 10:15 pm
STN
-
BWI
20h 05m
2 stops
$705Multiple Airlines
Sun, May 10 - Tue, May 19

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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
May 3
IAD9:45 pmWashington, D.C. Dulles Intl
37h 55m
1 stop
STN4:40 pmLondon Stansted
May 12
STN6:55 amLondon Stansted
33h 40m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$760
Turkish Airlines
May 4
IAD1:20 pmWashington, D.C. Dulles Intl
27h 50m
1 stop
STN10:10 pmLondon Stansted
May 12
STN6:55 amLondon Stansted
33h 40m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$767
Turkish Airlines
May 3
IAD1:20 pmWashington, D.C. Dulles Intl
15h 35m
1 stop
STN9:55 amLondon Stansted
May 12
STN6:55 amLondon Stansted
33h 40m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$778

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 April 27, 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

Mon 5/11

8:30 pm-12:20 am

2 stops22h 50m

London Stansted

Tue 5/19

7:05 am-7:25 pm

2 stops17h 20m

$663

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 5/10

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Tue 5/19

7:10 am-10:15 pm

2 stops20h 05m

$694

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 5/10

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Tue 5/19

7:10 am-7:25 pm

2 stops17h 15m

$697

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 5/10

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Tue 5/19

7:10 am-10:15 pm

2 stops20h 05m

$699
Quickest round-trip

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 5/10

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Tue 5/19

10:45 am-10:15 pm

2 stops16h 30m

$700

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 5/10

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Tue 5/19

7:10 am-10:15 pm

2 stops20h 05m

$701

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 5/10

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Tue 5/19

7:10 am-10:15 pm

2 stops20h 05m

$703

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 5/10

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Tue 5/19

7:10 am-10:15 pm

2 stops20h 05m

$704

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 5/10

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Wed 6/3

4:25 pm-3:10 pm

2 stops27h 45m

$705

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 5/10

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Tue 5/19

7:10 am-10:15 pm

2 stops20h 05m

$705

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?

Turkish Airlines 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

12h 35m

Direct flights

None
The fastest flight from Washington, D.C. to London Stansted Airport takes 12h 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.
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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 12h 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
Dover
Luton
Hayes
Crawley
Slough
Wembley
Stansted
Watford
Croydon
Uxbridge
Brentwood
Dartford
Cobham
Folkestone
Romford
Harrow
Guildford

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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