Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. to London from $213

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 3/23. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
8:20 pm - 6:50 pm
IAD
-
STN
17h 30m
1 stop
Multiple Airlines Logo
7:00 am - 5:00 pm
STN
-
IAD
15h 00m
1 stop
$569Multiple Airlines
Mo, Apr 6 - Mi, Apr 15
Multiple Airlines Logo
8:30 pm - 3:25 pm
IAD
-
STN
13h 55m
2 stops
Multiple Airlines Logo
9:40 pm - 7:20 pm
STN
-
IAD
26h 40m
2 stops
$571Multiple Airlines
Fr, Apr 17 - Sa, Apr 25
Multiple Airlines Logo
8:30 pm - 12:10 am
IAD
-
STN
22h 40m
2 stops
Multiple Airlines Logo
3:55 pm - 8:35 pm
STN
-
IAD
33h 40m
2 stops
$572Multiple Airlines
Di, Apr 7 - Di, Apr 21
Multiple Airlines Logo
8:30 pm - 11:20 pm
IAD
-
STN
21h 50m
2 stops
Multiple Airlines Logo
10:00 pm - 8:29 pm
STN
-
IAD
27h 29m
2 stops
$573Multiple Airlines
So, Apr 19 - So, Apr 26
Multiple Airlines Logo
8:30 pm - 6:30 pm
IAD
-
STN
17h 00m
2 stops
Multiple Airlines Logo
8:15 am - 7:20 pm
STN
-
IAD
16h 05m
2 stops
$575Multiple Airlines
Sa, Apr 25 - Do, Apr 30
Multiple Airlines Logo
8:20 pm - 10:20 pm
IAD
-
STN
21h 00m
2 stops
Multiple Airlines Logo
10:00 pm - 5:00 pm
STN
-
IAD
24h 00m
2 stops
$577Multiple Airlines
So, Apr 12 - Sa, Apr 18
Multiple Airlines Logo
8:30 pm - 12:10 am
IAD
-
STN
22h 40m
2 stops
Multiple Airlines Logo
6:30 am - 9:18 pm
STN
-
IAD
19h 48m
3 stops
$578Multiple Airlines
Di, Apr 21 - Mo, Apr 27
Multiple Airlines Logo
8:30 pm - 10:55 pm
IAD
-
STN
21h 25m
2 stops
Multiple Airlines Logo
7:05 am - 7:20 pm
STN
-
IAD
17h 15m
2 stops
$579Multiple Airlines
Do, Apr 2 - Di, Apr 7
Multiple Airlines Logo
8:30 pm - 11:50 pm
IAD
-
STN
22h 20m
2 stops
Multiple Airlines Logo
6:55 pm - 8:35 pm
STN
-
IAD
30h 40m
2 stops
$580Multiple Airlines
So, Apr 5 - Di, Apr 14
Multiple Airlines Logo
8:30 pm - 12:50 am
IAD
-
STN
23h 20m
2 stops
Multiple Airlines Logo
8:10 am - 3:10 pm
STN
-
IAD
36h 00m
2 stops
$582Multiple Airlines
Fr, Apr 17 - Mo, Apr 27

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 März 1, 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

Mo 4/6

8:20 pm-6:50 pm

1 stop17h 30m

London Stansted

Mi 4/15

7:00 am-5:00 pm

1 stop15h 00m

$569

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Fr 4/17

8:30 pm-3:25 pm

2 stops13h 55m

London Stansted

Sa 4/25

9:40 pm-7:20 pm

2 stops26h 40m

$571

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Di 4/7

8:30 pm-12:10 am

2 stops22h 40m

London Stansted

Di 4/21

3:55 pm-8:35 pm

2 stops33h 40m

$572

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

So 4/19

8:30 pm-11:20 pm

2 stops21h 50m

London Stansted

So 4/26

10:00 pm-8:29 pm

2 stops27h 29m

$573

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sa 4/25

8:30 pm-6:30 pm

2 stops17h 00m

London Stansted

Do 4/30

8:15 am-7:20 pm

2 stops16h 05m

$575

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

So 4/12

8:20 pm-10:20 pm

2 stops21h 00m

London Stansted

Sa 4/18

10:00 pm-5:00 pm

2 stops24h 00m

$577

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Di 4/21

8:30 pm-12:10 am

2 stops22h 40m

London Stansted

Mo 4/27

6:30 am-9:18 pm

3 stops19h 48m

$578

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Do 4/2

8:30 pm-10:55 pm

2 stops21h 25m

London Stansted

Di 4/7

7:05 am-7:20 pm

2 stops17h 15m

$579

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

So 4/5

8:30 pm-11:50 pm

2 stops22h 20m

London Stansted

Di 4/14

6:55 pm-8:35 pm

2 stops30h 40m

$580

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Fr 4/17

8:30 pm-12:50 am

2 stops23h 20m

London Stansted

Mo 4/27

8:10 am-3:10 pm

2 stops36h 00m

$582

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 19m.

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 45m

Direct flights

None
The fastest flight from Washington, D.C. to London Stansted Airport takes 9h 45m
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 45m.

  • 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Di 3/31
Di 4/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $406
Flights to London Gatwick Airportfrom $347
Flights to London City Airportfrom $532
Flights to London Luton Airportfrom $345
Flights to Glasgow Intl Airportfrom $352
Flights to Belfast Intl Airportfrom $521
Flights to London Southend Airportfrom $470
Flights to Belfast City Airportfrom $516