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Cheap flights from Washington, D.C. to London from $215

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 4/19. 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

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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 - 12:30 am
IAD
-
STN
23h 00m
2 stops
Multiple Airlines Logo
7:10 am - 7:20 pm
STN
-
IAD
17h 10m
2 stops
$562Multiple Airlines
Thu, Apr 23 - Tue, Apr 28
Multiple Airlines Logo
4:10 pm - 3:00 pm
DCA
-
STN
17h 50m
2 stops
Multiple Airlines Logo
7:25 am - 9:53 pm
STN
-
DCA
19h 28m
2 stops
$562Multiple Airlines
Mon, Apr 13 - Sun, Apr 19
Multiple Airlines Logo
8:30 pm - 6:50 pm
IAD
-
STN
17h 20m
2 stops
Multiple Airlines Logo
8:45 pm - 8:35 pm
STN
-
IAD
28h 50m
2 stops
$563Multiple Airlines
Mon, Apr 27 - Thu, May 7
Multiple Airlines Logo
8:30 pm - 12:20 am
IAD
-
STN
22h 50m
2 stops
Multiple Airlines Logo
8:45 pm - 8:35 pm
STN
-
IAD
28h 50m
2 stops
$564Multiple Airlines
Mon, Apr 27 - Thu, May 7
Multiple Airlines Logo
8:20 pm - 9:40 pm
IAD
-
STN
20h 20m
1 stop
Multiple Airlines Logo
7:00 am - 5:00 pm
STN
-
IAD
15h 00m
1 stop
$565Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
8:30 pm - 12:10 am
IAD
-
STN
22h 40m
2 stops
Multiple Airlines Logo
8:10 am - 3:10 pm
STN
-
IAD
36h 00m
2 stops
$567Multiple Airlines
Tue, Apr 28 - Mon, May 4
Multiple Airlines Logo
9:55 am - 6:10 pm
IAD
-
STN
27h 15m
2 stops
Multiple Airlines Logo
7:25 am - 7:40 pm
STN
-
IAD
17h 15m
2 stops
$569Multiple Airlines
Thu, Apr 16 - Sun, Apr 19
Multiple Airlines Logo
12:55 pm - 6:10 pm
DCA
-
STN
24h 15m
3 stops
Multiple Airlines Logo
7:25 am - 9:53 pm
STN
-
DCA
19h 28m
2 stops
$569Multiple Airlines
Thu, Apr 16 - Sun, Apr 19
Multiple Airlines Logo
8:30 pm - 10:40 pm
IAD
-
STN
21h 10m
3 stops
Multiple Airlines Logo
6:00 am - 8:35 pm
STN
-
IAD
19h 35m
2 stops
$571Multiple Airlines
Wed, May 6 - Thu, May 14
Multiple Airlines Logo
8:20 pm - 9:20 pm
IAD
-
STN
20h 00m
2 stops
Multiple Airlines Logo
4:15 pm - 5:00 pm
STN
-
IAD
29h 45m
3 stops
$572Multiple Airlines
Mon, Apr 27 - Thu, May 7

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 February 23, 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

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Thu 4/23

8:30 pm-12:30 am

2 stops23h 00m

London Stansted

Tue 4/28

7:10 am-7:20 pm

2 stops17h 10m

$562

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Mon 4/13

4:10 pm-3:00 pm

2 stops17h 50m

London Stansted

Sun 4/19

7:25 am-9:53 pm

2 stops19h 28m

$562

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 4/27

8:30 pm-6:50 pm

2 stops17h 20m

London Stansted

Thu 5/7

8:45 pm-8:35 pm

2 stops28h 50m

$563

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

Thu 5/7

8:45 pm-8:35 pm

2 stops28h 50m

$564

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 4/8

8:20 pm-9:40 pm

1 stop20h 20m

London Stansted

Wed 4/15

7:00 am-5:00 pm

1 stop15h 00m

$565

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 4/28

8:30 pm-12:10 am

2 stops22h 40m

London Stansted

Mon 5/4

8:10 am-3:10 pm

2 stops36h 00m

$567

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Thu 4/16

9:55 am-6:10 pm

2 stops27h 15m

London Stansted

Sun 4/19

7:25 am-7:40 pm

2 stops17h 15m

$569

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Thu 4/16

12:55 pm-6:10 pm

3 stops24h 15m

London Stansted

Sun 4/19

7:25 am-9:53 pm

2 stops19h 28m

$569

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 5/6

8:30 pm-10:40 pm

3 stops21h 10m

London Stansted

Thu 5/14

6:00 am-8:35 pm

2 stops19h 35m

$571

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 4/27

8:20 pm-9:20 pm

2 stops20h 00m

London Stansted

Thu 5/7

4:15 pm-5:00 pm

3 stops29h 45m

$572

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

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 27m.

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

11h 35m

Direct flights

None
The fastest flight from Washington, D.C. to London Stansted Airport takes 11h 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 11h 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 $408Free 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
Hayes
Wembley
Dartford
Brentwood
Croydon
Guildford
Harrow
Watford
Cobham
Folkestone
Romford
Stansted
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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