$454 Cheap Flights from Washington (DCA) to Santander (SDR)

View $454 flight on Tue, Mar 17, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Santander (SDR)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Washington to Santander (DCA-SDR)

Prices were available within the past 7 days and start at $454 for one-way flights and $544 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Wed, Jan 14 - Wed, Jan 28
DCA
Washington
SDR
Santander
$544 Roundtrip, found 6 days ago
$544
Roundtrip
found 6 days ago
Select Iberia flight, departing Wed, Jan 14 from Washington to Santander, returning Wed, Jan 28, priced at $544 found 6 days ago
American Airlines
Wed, Jan 21 - Thu, Feb 5
DCA
Washington
SDR
Santander
$572 Roundtrip, found 5 days ago
$572
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Jan 21 from Washington to Santander, returning Thu, Feb 5, priced at $572 found 5 days ago
British Airways
Sun, Mar 22 - Thu, Apr 9
DCA
Washington
SDR
Santander
$602 Roundtrip, found 5 days ago
$602
Roundtrip
found 5 days ago
Select British Airways flight, departing Sun, Mar 22 from Washington to Santander, returning Thu, Apr 9, priced at $602 found 5 days ago
Iberia
Wed, Jan 14 - Wed, Jan 28
DCA
Washington
SDR
Santander
$619 Roundtrip, found 6 days ago
$619
Roundtrip
found 6 days ago
Select Iberia flight, departing Wed, Jan 14 from Washington to Santander, returning Wed, Jan 28, priced at $619 found 6 days ago
American Airlines
Wed, Jan 21 - Sun, Feb 8
DCA
Washington
SDR
Santander
$622 Roundtrip, found 5 days ago
$622
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Jan 21 from Washington to Santander, returning Sun, Feb 8, priced at $622 found 5 days ago
American Airlines
Sat, Oct 11 - Wed, Oct 29
DCA
Washington
SDR
Santander
$625 Roundtrip, found 5 days ago
$625
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Oct 11 from Washington to Santander, returning Wed, Oct 29, priced at $625 found 5 days ago
British Airways
Sun, Apr 26 - Thu, May 14
DCA
Washington
SDR
Santander
$632 Roundtrip, found 5 days ago
$632
Roundtrip
found 5 days ago
Select British Airways flight, departing Sun, Apr 26 from Washington to Santander, returning Thu, May 14, priced at $632 found 5 days ago
American Airlines
Mon, Dec 29 - Wed, Jan 14
DCA
Washington
SDR
Santander
$647 Roundtrip, found 5 days ago
$647
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Dec 29 from Washington to Santander, returning Wed, Jan 14, priced at $647 found 5 days ago
American Airlines
Tue, Nov 18 - Wed, Dec 3
DCA
Washington
SDR
Santander
$661 Roundtrip, found 5 days ago
$661
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Nov 18 from Washington to Santander, returning Wed, Dec 3, priced at $661 found 5 days ago
Finnair
Wed, Jan 7 - Fri, Jan 16
DCA
Washington
SDR
Santander
$744 Roundtrip, found 5 days ago
$744
Roundtrip
found 5 days ago
Select Finnair flight, departing Wed, Jan 7 from Washington to Santander, returning Fri, Jan 16, priced at $744 found 5 days ago

Alternative airports near Santander

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Santander SDR. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $625
SDR
Santander
CheapestClosest
Average driving time to city center9 min
Flights from $625

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR) cost?
Secure a cheap one-way flight from $454 or cheap return flight from $544 from Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR) 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 Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR)?
The cheapest month to fly from DCA to SDR is January, when there's less demand. Off-peak months are generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from DCA to SDR. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR)?
There are no daily direct flights available from Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from DCA to SDR?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a number of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR)?
To avoid potential delays on the Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of being 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 Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR) last-minute?
Booking your plane ticket from DCA to SDR shortly before your journey is typically more expensive. But if you're flexible with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a DCA to SDR flight and hotel package?
Booking a DCA to SDR flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our impressive range of accommodations and then add activities, flights 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 Ronald Reagan Washington National Airport (DCA) to Santander Airport (SDR)?
In most instances, you're able to reschedule or cancel your DCA to SDR flight. However, additional fees may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want more information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Santander
Roundtrip price
$543
Distance
3697 mi

Book with confidence

Book with confidence

Washington to Santander Flights

The cheapest times to fly from Washington to Santander

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

 

The best time to book a flight from Washington to Santander

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

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 Santander in 2025. You can also book with separate airlines for your outbound and return journeys, from $454 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 Santander 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 Santander 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.

 

Washington to Santander Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.