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Cheap flights from London Stansted Airport to Washington, D.C. from £311

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 17/6. 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 London Stansted Airport to Washington, D.C.

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 20:29
STN
-
IAD
18h 59m
2 stops
Multiple Airlines Logo
08:18 - 22:40
IAD
-
STN
33h 22m
3 stops
£486Multiple Airlines
Mon, 8 Jun - Tue, 16 Jun
Multiple Airlines Logo
06:30 - 19:00
STN
-
IAD
17h 30m
1 stop
Multiple Airlines Logo
20:45 - 21:20
IAD
-
STN
19h 35m
1 stop
£487Multiple Airlines
Thu, 2 Jul - Thu, 9 Jul
Multiple Airlines Logo
08:30 - 19:15
STN
-
IAD
15h 45m
1 stop
Multiple Airlines Logo
21:00 - 19:25
IAD
-
STN
17h 25m
1 stop
£489Multiple Airlines
Mon, 15 Jun - Mon, 22 Jun
Multiple Airlines Logo
06:30 - 15:45
STN
-
IAD
14h 15m
1 stop
Multiple Airlines Logo
21:00 - 19:25
IAD
-
STN
17h 25m
1 stop
£492Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
06:30 - 19:15
STN
-
IAD
17h 45m
1 stop
Multiple Airlines Logo
21:00 - 17:05
IAD
-
STN
15h 05m
1 stop
£493Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
06:30 - 15:45
STN
-
IAD
14h 15m
1 stop
Multiple Airlines Logo
21:00 - 21:20
IAD
-
STN
19h 20m
1 stop
£495Multiple Airlines
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
06:30 - 19:15
STN
-
IAD
17h 45m
1 stop
Multiple Airlines Logo
21:10 - 21:20
IAD
-
STN
19h 10m
1 stop
£495Multiple Airlines
Mon, 1 Jun - Tue, 9 Jun
Multiple Airlines Logo
08:15 - 22:15
STN
-
BWI
19h 00m
2 stops
Multiple Airlines Logo
20:30 - 22:25
BWI
-
STN
20h 55m
2 stops
£496Multiple Airlines
Thu, 3 Sep - Mon, 7 Sep
Multiple Airlines Logo
06:30 - 19:15
STN
-
IAD
17h 45m
1 stop
Multiple Airlines Logo
21:00 - 21:20
IAD
-
STN
19h 20m
1 stop
£498Multiple Airlines
Wed, 10 Jun - Sun, 14 Jun
Multiple Airlines Logo
06:30 - 19:15
STN
-
IAD
17h 45m
1 stop
Multiple Airlines Logo
21:10 - 17:35
IAD
-
STN
15h 25m
1 stop
£499Multiple Airlines
Mon, 1 Jun - Tue, 9 Jun

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
29 May
STN07:25London Stansted
16h 35m
1 stop
IAD19:00Washington, D.C. Dulles Intl
30 Sept
IAD21:00Washington, D.C. Dulles Intl
28h 20m
1 stop
STN06:20London Stansted
£741
Royal Air Maroc
29 May
STN07:25London Stansted
16h 35m
1 stop
IAD19:00Washington, D.C. Dulles Intl
30 Sept
IAD21:00Washington, D.C. Dulles Intl
28h 20m
1 stop
STN06:20London Stansted
£755

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 20 May 2026.
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

Cheapest return flight

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 8/6

06:30-20:29

2 stops18h 59m

Washington, D.C. Dulles Intl

Tue 16/6

08:18-22:40

3 stops33h 22m

£486

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 2/7

06:30-19:00

1 stop17h 30m

Washington, D.C. Dulles Intl

Thu 9/7

20:45-21:20

1 stop19h 35m

£487

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 15/6

08:30-19:15

1 stop15h 45m

Washington, D.C. Dulles Intl

Mon 22/6

21:00-19:25

1 stop17h 25m

£489
Fastest return journey

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 1/6

06:30-15:45

1 stop14h 15m

Washington, D.C. Dulles Intl

Mon 8/6

21:00-19:25

1 stop17h 25m

£492

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 1/6

06:30-19:15

1 stop17h 45m

Washington, D.C. Dulles Intl

Mon 8/6

21:00-17:05

1 stop15h 05m

£493

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 1/6

06:30-15:45

1 stop14h 15m

Washington, D.C. Dulles Intl

Mon 8/6

21:00-21:20

1 stop19h 20m

£495

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 1/6

06:30-19:15

1 stop17h 45m

Washington, D.C. Dulles Intl

Tue 9/6

21:10-21:20

1 stop19h 10m

£495

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Thu 3/9

08:15-22:15

2 stops19h 00m

Baltimore/Washington

Mon 7/9

20:30-22:25

2 stops20h 55m

£496

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 10/6

06:30-19:15

1 stop17h 45m

Washington, D.C. Dulles Intl

Sun 14/6

21:00-21:20

1 stop19h 20m

£498

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 1/6

06:30-19:15

1 stop17h 45m

Washington, D.C. Dulles Intl

Tue 9/6

21:10-17:35

1 stop15h 25m

£499

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.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as £572. However, this price may fluctuate depending on the airline, the season, and holidays. 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 £611.

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

At midday 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 £562. Flying to Washington, D.C. at midday is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the morning, with an average ticket price of £589. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 return 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 40m

Direct flights

None
The fastest flight from London Stansted Airport to Washington, D.C. takes 12h 40m
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..
Search flight deals

Frequently asked questions about flying from London Stansted Airport to Washington, D.C.

  • How far is London Stansted to Washington, D.C. by plane?

    A flight from London Stansted to Washington, D.C. will travel around 3668.5 mi. By plane, this route typically takes 12h 40m.

  • 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. refresh daily.

  • 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 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..

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

    The required travel and health documents for your Washington, D.C. 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 Washington, D.C.. We recommend that you seek guidance from your airline or a reliable 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
Alexandria
College Park
Springfield
Fairfax
Arlington
Gettysburg
Linthicum Heights
Glen Burnie
Laurel
Ellicott City
Cambridge
Lutherville Timonium
Westminster
Lexington Park
Woodbridge
Bethesda
Owings Mills
Silver Spring
Rockville
Landover

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Washington, D.C. from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Of course. momondo tracks the price of London to Washington, D.C. 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 Washington, D.C. trip

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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