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Cheap flights from London Stansted Airport to Washington, D.C. from £420

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 16/2. 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 return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:00 - 18:50STN-IAD
12h 50m1 stop
Multiple Airlines Logo
20:30 - 13:05IAD-STN
11h 35m1 stop
£474Multiple Airlines
Find Deal
lø., 24 jan. - lø., 31 jan.
Multiple Airlines Logo
18:45 - 15:50STN-IAD
26h 05m2 stops
Multiple Airlines Logo
16:30 - 20:05IAD-STN
22h 35m2 stops
£477Multiple Airlines
Find Deal
on., 14 jan. - fr., 23 jan.
Multiple Airlines Logo
06:05 - 18:30STN-IAD
17h 25m2 stops
Multiple Airlines Logo
19:40 - 17:50IAD-STN
17h 10m2 stops
£480Multiple Airlines
Find Deal
on., 24 des. - on., 31 des.
Multiple Airlines Logo
09:35 - 14:35STN-IAD
34h 00m2 stops
Multiple Airlines Logo
17:30 - 20:00IAD-STN
21h 30m2 stops
£481Multiple Airlines
Find Deal
ma., 12 jan. - lø., 17 jan.
Multiple Airlines Logo
20:25 - 21:00STN-IAD
29h 35m2 stops
Multiple Airlines Logo
18:30 - 23:50IAD-STN
25h 20m2 stops
£482Multiple Airlines
Find Deal
ti., 24 feb. - ti., 10 mar.
Multiple Airlines Logo
05:55 - 11:45STN-IAD
34h 50m2 stops
Multiple Airlines Logo
13:30 - 13:10IAD-STN
18h 40m2 stops
£497Multiple Airlines
Find Deal
sø., 1 feb. - lø., 7 feb.
Multiple Airlines Logo
14:20 - 17:15STN-IAD
31h 55m2 stops
Multiple Airlines Logo
20:30 - 22:15IAD-STN
20h 45m2 stops
£500Multiple Airlines
Find Deal
on., 4 feb. - on., 18 feb.
Multiple Airlines Logo
08:40 - 14:35STN-IAD
34h 55m2 stops
Multiple Airlines Logo
17:30 - 17:50IAD-STN
19h 20m2 stops
£502Multiple Airlines
Find Deal
ma., 2 feb. - to., 5 feb.
Multiple Airlines Logo
09:35 - 15:15STN-IAD
34h 40m2 stops
Multiple Airlines Logo
17:30 - 23:40IAD-STN
25h 10m3 stops
£507Multiple Airlines
Find Deal
sø., 25 jan. - to., 29 jan.
Multiple Airlines Logo
05:55 - 18:30STN-IAD
17h 35m2 stops
Multiple Airlines Logo
19:40 - 15:10IAD-STN
14h 30m2 stops
£515Multiple Airlines
Find Deal
to., 19 feb. - sø., 1 mar.

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

Our best Royal Air Maroc deals on London Stansted Airport to Washington, D.C. Dulles Intl Airport flight tickets
Royal Air Maroc
10 Dec
STN07:20London Stansted
16h 25m
1 stop
IAD18:45Washington, D.C. Dulles Intl
5 Jan
IAD20:45Washington, D.C. Dulles Intl
28h 35m
1 stop
STN06:20London Stansted
£542
Find similar
Royal Air Maroc
27 Dec
STN07:20London Stansted
16h 25m
1 stop
IAD18:45Washington, D.C. Dulles Intl
10 Jan
IAD20:45Washington, D.C. Dulles Intl
28h 35m
1 stop
STN06:20London Stansted
£544
Find similar
Royal Air Maroc
12 Dec
STN07:20London Stansted
16h 25m
1 stop
IAD18:45Washington, D.C. Dulles Intl
29 Dec
IAD20:45Washington, D.C. Dulles Intl
28h 35m
1 stop
STN06:20London Stansted
£682
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Stansted Airport to Washington, D.C. Dulles Intl 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 279,928 searches. Data last updated 3 Desember 2025.
Use the filters below to find and compare flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

lø. 24/1

11:00-18:50

1 stop12h 50m

Washington, D.C. Dulles Intl

lø. 31/1

20:30-13:05

1 stop11h 35m

£474

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

on. 14/1

18:45-15:50

2 stops26h 05m

Washington, D.C. Dulles Intl

fr. 23/1

16:30-20:05

2 stops22h 35m

£477

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

on. 24/12

06:05-18:30

2 stops17h 25m

Washington, D.C. Dulles Intl

on. 31/12

19:40-17:50

2 stops17h 10m

£480

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

ma. 12/1

09:35-14:35

2 stops34h 00m

Washington, D.C. Dulles Intl

lø. 17/1

17:30-20:00

2 stops21h 30m

£481

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

ti. 24/2

20:25-21:00

2 stops29h 35m

Washington, D.C. Dulles Intl

ti. 10/3

18:30-23:50

2 stops25h 20m

£482

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

sø. 1/2

05:55-11:45

2 stops34h 50m

Washington, D.C. Dulles Intl

lø. 7/2

13:30-13:10

2 stops18h 40m

£497

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

on. 4/2

14:20-17:15

2 stops31h 55m

Washington, D.C. Dulles Intl

on. 18/2

20:30-22:15

2 stops20h 45m

£500

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

ma. 2/2

08:40-14:35

2 stops34h 55m

Washington, D.C. Dulles Intl

to. 5/2

17:30-17:50

2 stops19h 20m

£502

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

sø. 25/1

09:35-15:15

2 stops34h 40m

Washington, D.C. Dulles Intl

to. 29/1

17:30-23:40

3 stops25h 10m

£507

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

to. 19/2

05:55-18:30

2 stops17h 35m

Washington, D.C. Dulles Intl

sø. 1/3

19:40-15:10

2 stops14h 30m

£515

Flights are sorted by cheapest return 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. Dulles Intl 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 day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Thursday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from London Stansted Airport. The lowest ticket price found for a Thursday departure recently was £603. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from London Stansted Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £673.

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

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is in the evening when flights can be purchased for as low as £536. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the afternoon when prices are around £626.

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

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

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

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

Fastest flight time

14h 05m

Direct flights

None
The fastest flight from London Stansted Airport to Washington, D.C. Dulles Intl Airport takes 14h 05m
There are no direct flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from London Stansted Airport to Washington, D.C. Dulles Intl Airport.
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  • How far is London Stansted to Washington, D.C. Dulles Intl by plane?

    Washington, D.C. Dulles Intl is 3683.3 mi away from London Stansted. 12h 05m is a normal flight duration for this route.

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

    Prices for flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Washington, D.C. Dulles Intl Airport.

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

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport 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.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
College Park
Alexandria
Fairfax
Linthicum Heights
Bethesda
Front Royal
Winchester
Ellicott City
Cambridge
Arlington
Westminster
Ashburn
Woodbridge
Sterling
Silver Spring
Owings Mills
National Harbor

Why use momondo?

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

Finding the right flight to Washington, D.C. from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from London with this policy.

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

momondo helps you find the best flight between London and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Washington, D.C. from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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