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Cheap flights from Washington, D.C. to London from $299

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 4/30. 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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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 - 12:20 am
IAD
-
STN
22h 50m
2 stops
Multiple Airlines Logo
6:30 am - 8:29 pm
STN
-
IAD
18h 59m
3 stops
$662Multiple Airlines
Mon, Apr 27 - Tue, May 26
Multiple Airlines Logo
8:30 pm - 7:55 pm
BWI
-
STN
18h 25m
2 stops
Multiple Airlines Logo
7:00 am - 7:25 pm
STN
-
BWI
17h 25m
2 stops
$663Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
Multiple Airlines Logo
8:20 pm - 12:50 am
IAD
-
STN
23h 30m
2 stops
Multiple Airlines Logo
10:45 am - 5:00 pm
STN
-
IAD
35h 15m
2 stops
$664Multiple Airlines
Sun, Apr 26 - Wed, Apr 29
Multiple Airlines Logo
8:30 pm - 7:15 pm
IAD
-
STN
17h 45m
2 stops
Multiple Airlines Logo
6:55 pm - 8:35 pm
STN
-
IAD
30h 40m
2 stops
$665Multiple Airlines
Mon, Apr 27 - Tue, May 5
Turkish Airlines Logo
9:45 pm - 9:55 am
IAD
-
STN
31h 10m
1 stop
Turkish Airlines Logo
5:45 pm - 11:35 am
STN
-
IAD
22h 50m
1 stop
$666Turkish Airlines
Thu, Oct 1 - Wed, Oct 7
Turkish Airlines Logo
9:45 pm - 10:10 pm
IAD
-
STN
19h 25m
1 stop
Turkish Airlines Logo
10:50 am - 11:35 am
STN
-
IAD
29h 45m
1 stop
$667Turkish Airlines
Wed, Aug 19 - Wed, Sep 9
Multiple Airlines Logo
8:30 pm - 7:55 pm
BWI
-
STN
18h 25m
2 stops
Multiple Airlines Logo
7:00 am - 7:25 pm
STN
-
BWI
17h 25m
2 stops
$667Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
Multiple Airlines Logo
8:30 pm - 7:55 pm
BWI
-
STN
18h 25m
2 stops
Multiple Airlines Logo
7:00 am - 7:25 pm
STN
-
BWI
17h 25m
2 stops
$670Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
Multiple Airlines Logo
8:30 pm - 12:25 am
IAD
-
STN
22h 55m
2 stops
Multiple Airlines Logo
9:30 pm - 8:35 pm
STN
-
IAD
28h 05m
2 stops
$673Multiple Airlines
Sat, May 2 - Wed, May 6
Multiple Airlines Logo
8:30 pm - 7:15 pm
IAD
-
STN
17h 45m
2 stops
Multiple Airlines Logo
3:55 pm - 3:10 pm
STN
-
IAD
28h 15m
2 stops
$674Multiple Airlines
Mon, Apr 27 - Tue, May 5

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 13
IAD9:45 pmWashington, D.C. Dulles Intl
19h 25m
1 stop
STN10:10 pmLondon Stansted
Sep 25
STN5:35 pmLondon Stansted
23h 00m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$665
Turkish Airlines
Sep 8
IAD1:20 pmWashington, D.C. Dulles Intl
22h 30m
1 stop
STN4:50 pmLondon Stansted
Sep 29
STN5:35 pmLondon Stansted
23h 00m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$666
Turkish Airlines
Aug 19
IAD9:45 pmWashington, D.C. Dulles Intl
19h 25m
1 stop
STN10:10 pmLondon Stansted
Sep 9
STN10:50 amLondon Stansted
29h 45m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$667

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 13, 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 4/27

8:30 pm-12:20 am

2 stops22h 50m

London Stansted

Tue 5/26

6:30 am-8:29 pm

3 stops18h 59m

$662
Quickest round-trip

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 4/26

8:30 pm-7:55 pm

2 stops18h 25m

London Stansted

Thu 4/30

7:00 am-7:25 pm

2 stops17h 25m

$663

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 4/26

8:20 pm-12:50 am

2 stops23h 30m

London Stansted

Wed 4/29

10:45 am-5:00 pm

2 stops35h 15m

$664

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 4/27

8:30 pm-7:15 pm

2 stops17h 45m

London Stansted

Tue 5/5

6:55 pm-8:35 pm

2 stops30h 40m

$665

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Thu 10/1

9:45 pm-9:55 am

1 stop31h 10m

London Stansted

Wed 10/7

5:45 pm-11:35 am

1 stop22h 50m

$666

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 8/19

9:45 pm-10:10 pm

1 stop19h 25m

London Stansted

Wed 9/9

10:50 am-11:35 am

1 stop29h 45m

$667

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 4/26

8:30 pm-7:55 pm

2 stops18h 25m

London Stansted

Thu 4/30

7:00 am-7:25 pm

2 stops17h 25m

$667

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 4/26

8:30 pm-7:55 pm

2 stops18h 25m

London Stansted

Thu 4/30

7:00 am-7:25 pm

2 stops17h 25m

$670

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sat 5/2

8:30 pm-12:25 am

2 stops22h 55m

London Stansted

Wed 5/6

9:30 pm-8:35 pm

2 stops28h 05m

$673

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 4/27

8:30 pm-7:15 pm

2 stops17h 45m

London Stansted

Tue 5/5

3:55 pm-3:10 pm

2 stops28h 15m

$674

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 55m

Direct flights

None
The fastest flight from Washington, D.C. to London Stansted Airport takes 12h 55m
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 55m.

  • 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.

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 $428Free 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
Hayes
Slough
Wembley
Crawley
Stansted
Croydon
Dartford
Brentwood
Cobham
Folkestone
Guildford
Romford
Harrow
Watford
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.

An easier way to manage your London Stansted Airport trip

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