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Cheap flights from London Stansted Airport to Washington, D.C. from $263

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Stansted Airport to Washington, D.C. departing on 1/24. 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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Find the cheapest flights from London Stansted Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:55 am - 9:00 pmSTN-IAD
20h 05m2 stops
Multiple Airlines Logo
5:30 pm - 5:50 pmIAD-STN
19h 20m2 stops
$619Multiple Airlines
Find Deal
Wed, Jan 14 - Thu, Jan 15
Multiple Airlines Logo
6:30 am - 3:35 pmSTN-IAD
14h 05m1 stop
Multiple Airlines Logo
5:05 pm - 7:50 amIAD-STN
9h 45m1 stop
$622Multiple Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 2
Multiple Airlines Logo
8:40 pm - 4:05 pmSTN-IAD
24h 25m2 stops
Multiple Airlines Logo
6:50 pm - 7:40 pmIAD-STN
19h 50m2 stops
$624Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
2:25 pm - 2:35 pmSTN-IAD
29h 10m2 stops
Multiple Airlines Logo
5:30 pm - 5:50 pmIAD-STN
19h 20m2 stops
$627Multiple Airlines
Find Deal
Mon, Mar 2 - Thu, Mar 5
Multiple Airlines Logo
8:40 pm - 4:35 pmSTN-IAD
24h 55m2 stops
Multiple Airlines Logo
12:23 pm - 7:40 pmIAD-STN
26h 17m3 stops
$631Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
8:05 pm - 9:00 pmSTN-IAD
29h 55m2 stops
Multiple Airlines Logo
5:30 pm - 11:55 pmIAD-STN
25h 25m2 stops
$635Multiple Airlines
Find Deal
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
2:15 pm - 4:30 pmSTN-IAD
31h 15m1 stop
Multiple Airlines Logo
10:30 pm - 2:15 pmIAD-STN
34h 45m2 stops
$636Multiple Airlines
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Wed, Jan 14 - Wed, Jan 28
Multiple Airlines Logo
6:30 am - 7:30 pmSTN-IAD
18h 00m1 stop
Multiple Airlines Logo
5:05 pm - 1:20 pmIAD-STN
15h 15m1 stop
$637Multiple Airlines
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Mon, Dec 22 - Sat, Jan 10
Multiple Airlines Logo
6:30 am - 6:40 pmSTN-BWI
17h 10m2 stops
Multiple Airlines Logo
7:40 pm - 4:35 pmBWI-STN
15h 55m2 stops
$639Multiple Airlines
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Fri, Jan 9 - Fri, Jan 16
Royal Air Maroc Logo
7:20 am - 6:45 pmSTN-IAD
16h 25m1 stop
Royal Air Maroc Logo
8:45 pm - 6:20 amIAD-STN
28h 35m1 stop
$642Royal Air Maroc
Find Deal
Wed, Dec 10 - Wed, Jan 14

Royal Air Maroc flights from London Stansted Airport to Washington, D.C.

Our best Royal Air Maroc deals on London Stansted Airport to Washington, D.C. flight tickets
Royal Air Maroc
Dec 10
STN7:20 amLondon Stansted
16h 25m
1 stop
IAD6:45 pmWashington, D.C. Dulles Intl
Jan 14
IAD8:45 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
STN6:20 amLondon Stansted
$642
Find similar
Royal Air Maroc
Dec 12
STN7:20 amLondon Stansted
16h 25m
1 stop
IAD6:45 pmWashington, D.C. Dulles Intl
Dec 28
IAD8:45 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
STN6:20 amLondon Stansted
$667
Find similar
Royal Air Maroc
Dec 12
STN7:20 amLondon Stansted
16h 25m
1 stop
IAD6:45 pmWashington, D.C. Dulles Intl
Dec 28
IAD8:45 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
STN6:20 amLondon Stansted
$675
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Stansted Airport to Washington, D.C. 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 November 26, 2025.
Use the filters below to find and compare flights from London Stansted Airport to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 1/14

5:55 am-9:00 pm

2 stops20h 05m

Washington, D.C. Dulles Intl

Thu 1/15

5:30 pm-5:50 pm

2 stops19h 20m

$619

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 1/30

6:30 am-3:35 pm

1 stop14h 05m

Washington, D.C. Dulles Intl

Mon 2/2

5:05 pm-7:50 am

1 stop9h 45m

$622

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 1/14

8:40 pm-4:05 pm

2 stops24h 25m

Washington, D.C. Dulles Intl

Wed 1/21

6:50 pm-7:40 pm

2 stops19h 50m

$624

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 3/2

2:25 pm-2:35 pm

2 stops29h 10m

Washington, D.C. Dulles Intl

Thu 3/5

5:30 pm-5:50 pm

2 stops19h 20m

$627

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 1/14

8:40 pm-4:35 pm

2 stops24h 55m

Washington, D.C. Dulles Intl

Wed 1/21

12:23 pm-7:40 pm

3 stops26h 17m

$631

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 2/26

8:05 pm-9:00 pm

2 stops29h 55m

Washington, D.C. Dulles Intl

Mon 3/2

5:30 pm-11:55 pm

2 stops25h 25m

$635

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 1/14

2:15 pm-4:30 pm

1 stop31h 15m

Washington, D.C. Dulles Intl

Wed 1/28

10:30 pm-2:15 pm

2 stops34h 45m

$636

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 12/22

6:30 am-7:30 pm

1 stop18h 00m

Washington, D.C. Dulles Intl

Sat 1/10

5:05 pm-1:20 pm

1 stop15h 15m

$637

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Fri 1/9

6:30 am-6:40 pm

2 stops17h 10m

Baltimore/Washington

Fri 1/16

7:40 pm-4:35 pm

2 stops15h 55m

$639

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 12/10

7:20 am-6:45 pm

1 stop16h 25m

Washington, D.C. Dulles Intl

Wed 1/14

8:45 pm-6:20 am

1 stop28h 35m

$642

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from London Stansted Airport to Washington, D.C.

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 day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from London Stansted Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as $777. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London Stansted Airport to Washington, D.C. for around $936.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the evening is the cheapest time of day to fly from London Stansted Airport to Washington, D.C. when you can find flight prices for as low as $762. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $867. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from London Stansted Airport to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from London Stansted Airport to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Stansted Airport to Washington, D.C. (STN to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to Washington, D.C.

Fastest flight time

12h 05m

Direct flights

None
The fastest flight from London Stansted Airport to Washington, D.C. takes 12h 05m
There are no direct flights from London Stansted Airport to Washington, D.C.. There are no popular flight routes from London Stansted Airport to Washington, D.C..
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  • How far is London Stansted to Washington, D.C. by plane?

    Washington, D.C. is 3668.5 mi away from London Stansted. Typically, this will take 10h 45m by plane in normal conditions.

  • When did momondo last update prices for flights from London Stansted Airport to Washington, D.C.?

    Prices for flights from London Stansted Airport to Washington, D.C. were last updated today.

  • How old do you have to be to fly from London Stansted Airport to Washington, D.C.?

    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 London Stansted Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie
Linthicum Heights
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from London to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from London.

Can I find flights from London to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Washington, D.C.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport