$403 Cheap Flights from San Sebastian (EAS) to Washington (DCA)

View $403 flight on Mon, Jan 19, 2026Opens in a new window

Popular airlines from San Sebastian (EAS) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from San Sebastian to Washington (EAS-DCA)

Prices were available within the past 7 days and start at $403 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from San Sebastian Airport (EAS) to Ronald Reagan Washington National Airport (DCA) cost?
Secure a cheap one-way flight from $403 or cheap return flight from San Sebastian Airport (EAS) 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 offers on this route.
What is the cheapest month to fly from San Sebastian Airport (EAS) to Ronald Reagan Washington National Airport (DCA)?
Planning your trip for can help you save, as it's the cheapest month for flights between EAS and DCA. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from San Sebastian Airport (EAS) to Ronald Reagan Washington National Airport (DCA)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from EAS to DCA. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from San Sebastian Airport (EAS) to Ronald Reagan Washington National Airport (DCA)?
You'll need to book a flight with a layover when traveling from San Sebastian Airport (EAS) to Ronald Reagan Washington National Airport (DCA). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from EAS to DCA?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Sebastian Airport (EAS) to Ronald Reagan Washington National Airport (DCA)?
To reach Ronald Reagan Washington National Airport (DCA) on time, select a flight that leaves San Sebastian Airport (EAS) before 3 PM. The likelihood 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 San Sebastian Airport (EAS) to Ronald Reagan Washington National Airport (DCA) last-minute?
Waiting until just before your departure to book a flight from EAS to DCA generally means paying more. While it's possible to find some last-minute deals, they're not always guaranteed. Be flexible with your itinerary for a better chance of scoring a bargain.
Is it cheaper to book an EAS to DCA flight and hotel package?
You'll typically save money by booking an EAS to DCA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After selecting your preferred accommodations and flights, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from San Sebastian Airport (EAS) to Ronald Reagan Washington National Airport (DCA)?
If you reserved your EAS to DCA flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Origin airport
San Sebastian
Destination airport
Ronald Reagan Washington National
Distance
3793 mi

Book with confidence

San Sebastian to Washington Flights

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

 

The best time to book a flight from San Sebastian to Washington

Sunday is one of the best days to book for cheap flights from San Sebastian 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 San Sebastian 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 San Sebastian to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $403 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 San Sebastian 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 San Sebastian 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.

 

San Sebastian to Washington Flights

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*Available to One Key members.