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Cheap flights from Washington, D.C. to London from $240

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 5/4. 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

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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 - 12:50 am
BWI
-
STN
23h 20m
2 stops
Multiple Airlines Logo
6:45 am - 7:25 pm
STN
-
BWI
17h 40m
2 stops
$597Multiple Airlines
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
8:30 pm - 12:20 am
BWI
-
STN
22h 50m
2 stops
Multiple Airlines Logo
11:25 am - 10:15 pm
STN
-
BWI
15h 50m
2 stops
$599Multiple Airlines
Mon, May 4 - Sat, May 9
Multiple Airlines Logo
11:20 pm - 12:30 am
BWI
-
STN
20h 10m
2 stops
Multiple Airlines Logo
7:20 am - 7:25 pm
STN
-
BWI
17h 05m
2 stops
$600Multiple Airlines
Thu, Apr 9 - Thu, Apr 16
Multiple Airlines Logo
8:30 pm - 12:30 am
IAD
-
STN
23h 00m
2 stops
Multiple Airlines Logo
8:15 am - 7:20 pm
STN
-
IAD
16h 05m
2 stops
$603Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
Multiple Airlines Logo
8:30 pm - 4:50 pm
BWI
-
STN
15h 20m
2 stops
Multiple Airlines Logo
8:15 am - 7:25 pm
STN
-
BWI
16h 10m
2 stops
$603Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
9:05 pm - 12:45 pm
IAD
-
STN
10h 40m
1 stop
Multiple Airlines Logo
6:30 am - 3:45 pm
STN
-
IAD
14h 15m
1 stop
$604Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
8:30 pm - 4:50 pm
BWI
-
STN
15h 20m
2 stops
Multiple Airlines Logo
8:15 am - 7:25 pm
STN
-
BWI
16h 10m
2 stops
$604Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
5:15 pm - 7:50 am
IAD
-
STN
9h 35m
1 stop
Multiple Airlines Logo
6:35 am - 3:45 pm
STN
-
IAD
14h 10m
1 stop
$605Multiple Airlines
Sun, May 3 - Sun, May 10
Multiple Airlines Logo
8:30 pm - 5:10 pm
BWI
-
STN
15h 40m
2 stops
Multiple Airlines Logo
7:00 am - 7:25 pm
STN
-
BWI
17h 25m
2 stops
$607Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
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
$609Multiple Airlines
Sun, Apr 12 - Tue, Apr 28

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
Apr 30
IAD1:20 pmWashington, D.C. Dulles Intl
22h 20m
1 stop
STN4:40 pmLondon Stansted
May 7
STN5:35 pmLondon Stansted
23h 00m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$656
Turkish Airlines
Mar 19
IAD2:30 pmWashington, D.C. Dulles Intl
21h 50m
1 stop
STN4:20 pmLondon Stansted
Mar 23
STN10:50 amLondon Stansted
29h 55m
1 stop
IAD12:45 pmWashington, D.C. Dulles Intl
$657
Turkish Airlines
Mar 19
IAD2:30 pmWashington, D.C. Dulles Intl
21h 50m
1 stop
STN4:20 pmLondon Stansted
Mar 23
STN10:50 amLondon Stansted
29h 55m
1 stop
IAD12:45 pmWashington, D.C. Dulles Intl
$658

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 March 17, 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 4/27

8:30 pm-12:50 am

2 stops23h 20m

London Stansted

Mon 5/4

6:45 am-7:25 pm

2 stops17h 40m

$597

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Mon 5/4

8:30 pm-12:20 am

2 stops22h 50m

London Stansted

Sat 5/9

11:25 am-10:15 pm

2 stops15h 50m

$599

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Thu 4/9

11:20 pm-12:30 am

2 stops20h 10m

London Stansted

Thu 4/16

7:20 am-7:25 pm

2 stops17h 05m

$600

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Thu 4/16

8:30 pm-12:30 am

2 stops23h 00m

London Stansted

Mon 4/20

8:15 am-7:20 pm

2 stops16h 05m

$603

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Mon 4/13

8:30 pm-4:50 pm

2 stops15h 20m

London Stansted

Mon 4/20

8:15 am-7:25 pm

2 stops16h 10m

$603

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 5/5

9:05 pm-12:45 pm

1 stop10h 40m

London Stansted

Tue 5/12

6:30 am-3:45 pm

1 stop14h 15m

$604

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Mon 4/13

8:30 pm-4:50 pm

2 stops15h 20m

London Stansted

Mon 4/20

8:15 am-7:25 pm

2 stops16h 10m

$604
Quickest round-trip

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 5/3

5:15 pm-7:50 am

1 stop9h 35m

London Stansted

Sun 5/10

6:35 am-3:45 pm

1 stop14h 10m

$605

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Wed 4/8

8:30 pm-5:10 pm

2 stops15h 40m

London Stansted

Wed 4/15

7:00 am-7:25 pm

2 stops17h 25m

$607

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 4/12

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

Tue 4/28

7:10 am-7:25 pm

2 stops17h 15m

$609

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

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

  • 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 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 $406Free 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
Milton Keynes
Luton
Dover
Slough
Crawley
Wembley
Hayes
Dartford
Croydon
Harrow
Watford
Brentwood
Guildford
Stansted
Cobham
Folkestone
Romford
Richmond

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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