Cheap Flights from London (STN) to Washington (DCA)

Popular airlines from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA)

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Frequently asked questions

How much does a flight from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA) cost?
Snag a cheap one-way flight or cheap return flight from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA)?
is the least expensive month to fly from STN to DCA. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA)?
To find the cheapest airline flying from STN to DCA, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA)?
There are no daily nonstop flights from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from STN to DCA?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change based on a number of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA)?
Select a flight from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA) last-minute?
Holding off until just before your departure to book your flight from STN to DCA often results in higher prices. While you may find some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans for a better chance of snagging a bargain.
Is it cheaper to book a STN to DCA flight and hotel package?
Opting for a STN to DCA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Stansted Airport (STN) to Ronald Reagan Washington National Airport (DCA)?
Typically, you're able to cancel or reschedule your STN to DCA flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further details, head to our Customer Service portal.

Travel information

Origin airport
Stansted
Destination airport
Ronald Reagan Washington National
Distance
3674 mi

Book with confidence

London to Washington Flights

The cheapest times to fly from London to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Washington are during the month of . You can find some of the cheapest flights from London to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Washington

Sunday is one of the best days to book for cheap flights from London to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

London to Washington Flights

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*Available to One Key members.