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Cheap flights from London Stansted Airport to Washington, D.C. from $480

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 10/10. 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

Multiple Airlines Logo
9:20 pm - 6:30 pmSTN-IAD
26h 10m2 stops
Multiple Airlines Logo
7:40 pm - 8:55 pmIAD-STN
20h 15m2 stops
$535Multiple Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 30
Multiple Airlines Logo
6:10 am - 6:30 pmSTN-IAD
17h 20m2 stops
Multiple Airlines Logo
7:40 pm - 8:45 pmIAD-STN
20h 05m2 stops
$538Multiple Airlines
Find Deal
Mon, Nov 10 - Fri, Nov 14
PLAY Logo
11:40 am - 5:40 pmSTN-BWI
11h 00m1 stop
PLAY Logo
6:50 pm - 10:40 amBWI-STN
10h 50m1 stop
$540PLAY
Find Deal
Fri, Sep 26 - Wed, Oct 1
PLAY Logo
11:40 am - 5:40 pmSTN-BWI
11h 00m1 stop
PLAY Logo
6:50 pm - 10:40 amBWI-STN
10h 50m1 stop
$547PLAY
Find Deal
Sat, Oct 11 - Mon, Oct 13
Multiple Airlines Logo
10:35 am - 4:15 pmSTN-IAD
34h 40m2 stops
Multiple Airlines Logo
10:20 am - 8:55 pmIAD-STN
29h 35m2 stops
$547Multiple Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 8
Multiple Airlines Logo
9:20 am - 3:50 pmSTN-IAD
11h 30m1 stop
Multiple Airlines Logo
10:00 pm - 8:05 pmIAD-STN
18h 05m1 stop
$548Multiple Airlines
Find Deal
Thu, Oct 23 - Sun, Oct 26
Multiple Airlines Logo
8:30 am - 7:30 pmSTN-IAD
15h 00m2 stops
Multiple Airlines Logo
7:40 pm - 5:50 pmIAD-STN
17h 10m2 stops
$553Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
PLAY Logo
11:40 am - 5:40 pmSTN-BWI
11h 00m1 stop
PLAY Logo
6:50 pm - 10:40 amBWI-STN
10h 50m1 stop
$555PLAY
Find Deal
Sun, Oct 5 - Mon, Oct 6
Multiple Airlines Logo
1:30 pm - 5:40 pmSTN-IAD
32h 10m2 stops
Multiple Airlines Logo
4:25 pm - 4:35 pmIAD-STN
19h 10m2 stops
$555Multiple Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
PLAY Logo
11:40 am - 5:40 pmSTN-BWI
11h 00m1 stop
PLAY Logo
6:50 pm - 10:40 amBWI-STN
10h 50m1 stop
$556PLAY
Find Deal
Wed, Oct 15 - Wed, Oct 22

PLAY flights from London Stansted Airport to Washington, D.C.

Our best PLAY deals on London Stansted Airport to Washington, D.C. flight tickets
PLAY
Sep 17
STN11:40 amLondon Stansted
11h 00m
1 stop
BWI5:40 pmBaltimore/Washington
Sep 23
BWI6:50 pmBaltimore/Washington
10h 50m
1 stop
STN10:40 amLondon Stansted
$533
Find similar
PLAY
Sep 19
STN11:40 amLondon Stansted
11h 00m
1 stop
BWI5:40 pmBaltimore/Washington
Sep 23
BWI6:50 pmBaltimore/Washington
10h 50m
1 stop
STN10:40 amLondon Stansted
$537
Find similar
PLAY
Sep 26
STN11:40 amLondon Stansted
11h 00m
1 stop
BWI5:40 pmBaltimore/Washington
Oct 1
BWI6:50 pmBaltimore/Washington
10h 50m
1 stop
STN10:40 amLondon Stansted
$540
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 September 16, 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

Thu 11/13

9:20 pm-6:30 pm

2 stops26h 10m

Washington, D.C. Dulles Intl

Sun 11/30

7:40 pm-8:55 pm

2 stops20h 15m

$535

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 11/10

6:10 am-6:30 pm

2 stops17h 20m

Washington, D.C. Dulles Intl

Fri 11/14

7:40 pm-8:45 pm

2 stops20h 05m

$538

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Fri 9/26

11:40 am-5:40 pm

1 stop11h 00m

Baltimore/Washington

Wed 10/1

6:50 pm-10:40 am

1 stop10h 50m

$540

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Sat 10/11

11:40 am-5:40 pm

1 stop11h 00m

Baltimore/Washington

Mon 10/13

6:50 pm-10:40 am

1 stop10h 50m

$547

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 10/1

10:35 am-4:15 pm

2 stops34h 40m

Washington, D.C. Dulles Intl

Wed 10/8

10:20 am-8:55 pm

2 stops29h 35m

$547

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 10/23

9:20 am-3:50 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Sun 10/26

10:00 pm-8:05 pm

1 stop18h 05m

$548

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 10/29

8:30 am-7:30 pm

2 stops15h 00m

Washington, D.C. Dulles Intl

Wed 11/5

7:40 pm-5:50 pm

2 stops17h 10m

$553

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Sun 10/5

11:40 am-5:40 pm

1 stop11h 00m

Baltimore/Washington

Mon 10/6

6:50 pm-10:40 am

1 stop10h 50m

$555

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 10/31

1:30 pm-5:40 pm

2 stops32h 10m

Washington, D.C. Dulles Intl

Fri 11/7

4:25 pm-4:35 pm

2 stops19h 10m

$555

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Wed 10/15

11:40 am-5:40 pm

1 stop11h 00m

Baltimore/Washington

Wed 10/22

6:50 pm-10:40 am

1 stop10h 50m

$556

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 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 month to fly to Washington, D.C.?

The month of February is, on average, the cheapest month to fly to Washington, D.C. from London Stansted Airport, with most prices found around $307. If you’re not able to fly to Washington, D.C. in February, then April is your next best option. Flight prices from London Stansted Airport to Washington, D.C. during April average around $368.

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 $805. 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 $938.

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 at noon 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.

Direct flights

None
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 11h 00m 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 many operators does momondo search for flights from London Stansted Airport to Washington, D.C.?

  • 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.

Best airlines flying from London Stansted Airport to Washington, D.C.

Compare and see reviews for airlines that fly from London Stansted Airport to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom $304Free CancellationRating
7.0
103 reviews
Search PLAY flights

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

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

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