Cheap Flights from Washington (IAD) to Washington (DCA)

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Find available prices by choosing your travel dates.
Flights from Washington (IAD) to Washington (DCA)
Origin airport
Washington Dulles Intl.
Destination airport
Ronald Reagan Washington National
Distance
22 mi

Washington to Washington Flights

The cheapest times to fly from Washington 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 Washington to Washington are during the month of . You can find some of the cheapest flights from Washington to Washington with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Washington to Washington

Sunday is one of the best days to book for cheap flights from Washington 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 Washington 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 Washington 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 Washington 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 Washington 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.

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Ronald Reagan Washington National Airport (DCA) cost?
Discover the latest flight deals from IAD to DCA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to DCA?
The cheapest flights from IAD to DCA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAD to DCA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from IAD to DCA. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Ronald Reagan Washington National Airport (DCA)?
There aren’t any daily direct flights departing from Washington Dulles Intl. Airport (IAD) to Ronald Reagan Washington National Airport (DCA). But you can choose 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 IAD to DCA?
You’ll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Ronald Reagan Washington National Airport (DCA)?
To arrive at Ronald Reagan Washington National Airport (DCA) on time, choose a flight that leaves from Washington Dulles Intl. Airport (IAD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Washington Dulles Intl. Airport (IAD) to Ronald Reagan Washington National Airport (DCA) last-minute?
Last-minute fares from IAD to DCA are usually more expensive. To secure the lowest rates, start searching for flights well in advance. That said, if your travel plans are flexible, you may land a cheap fare just before your departure.
Is it cheaper to book an IAD to DCA flight and hotel package?
Booking an IAD to DCA flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our impressive range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Ronald Reagan Washington National Airport (DCA)?
It’s usually possible to reschedule or cancel your IAD to DCA flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find more information on our Customer Service portal.

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*Available to One Key members.