HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Santander

$635+ Cheap flights from Reagan-National (DCA) to Santander (SDR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SDR
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Santander with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Santander

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Santander (SDR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$635
(Iberia)
From Washington, D.C. Reagan-National to Santander
Search Deals

Find flight deals from Reagan-National to Santander

Cheapest flights from Reagan-National to Santander
Explore the most affordable flight options available from Reagan-National to Santander. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Iberia deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/252:55 pmDCA - SDR
2 stops21h 15mIberia
Sat 11/19:25 amSDR - DCA
2 stops18h 32mIberia
Deal found 9/10$635
This Iberia deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/31:39 pmDCA - SDR
2 stops13h 06mIberia
Sun 10/59:20 amSDR - DCA
2 stops19h 47mIberia
Deal found 9/9$844
This lol.travel deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/262:59 pmDCA - SDR
2 stops12h 21mIberia
Sun 11/29:25 amSDR - DCA
2 stops15h 31mIberia
Deal found 9/11$974
This Iberia deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/281:44 pmDCA - SDR
2 stops13h 06mIberia
Tue 12/25:40 pmSDR - DCA
2 stops31h 17mIberia
Deal found 9/9$1,281
This Cheapflightsfares deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:10 pmDCA - SDR
2 stops13h 10mIberia
Sat 12/279:25 amSDR - DCA
2 stops15h 15mIberia
Deal found 9/11$1,893

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Santander 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Santander that are best for you.

Fly from

Reagan-National

Fly to

Santander

Route

Depart

Return

Price

Washington, D.C.Santander

DCA - SDR

DCASDR

Washington, D.C. Reagan-National

Sat 10/25

2:55 pm-6:10 pm

2 stops21h 15m

Santander

Sat 11/1

9:25 am-10:57 pm

2 stops18h 32m

$635

Washington, D.C.Santander

DCA - SDR

DCASDR

Washington, D.C. Reagan-National

Fri 10/3

1:39 pm-8:45 am

2 stops13h 06m

Santander

Sun 10/5

9:20 am-11:07 pm

2 stops19h 47m

$844

Washington, D.C.Santander

DCA - SDR

DCASDR

Washington, D.C. Reagan-National

Sun 10/26

2:59 pm-8:20 am

2 stops12h 21m

Santander

Sun 11/2

9:25 am-6:56 pm

2 stops15h 31m

$974

Washington, D.C.Santander

DCA - SDR

DCASDR

Washington, D.C. Reagan-National

Fri 11/28

1:44 pm-8:50 am

2 stops13h 06m

Santander

Tue 12/2

5:40 pm-6:57 pm

2 stops31h 17m

$1,281

Washington, D.C.Santander

DCA - SDR

DCASDR

Washington, D.C. Reagan-National

Mon 12/22

1:10 pm-8:20 am

2 stops13h 10m

Santander

Sat 12/27

9:25 am-6:40 pm

2 stops15h 15m

$1,893

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Reagan-National to Santander

Have a flexible travel schedule? Discover the best time to fly to Santander from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Santander. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Santander from Washington, D.C. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to Santander, you will be flying into Santander. Santander (SDR) is just 2.5 mi from the center of the city. Santander is the only Santander airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Santander from Washington, D.C. Reagan-National on a regular basis.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Santander?

    For as low as $635, Iberia can have you in Santander from Washington, D.C. Reagan-National Airport in 21h 15m. Washington, D.C. Reagan-National Airport and Santander are separated by a distance of 3695 mi.

  • Can I find deals for flights from Reagan-National to Santander that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Santander flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Santander?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Santander.

  • Can I find deals for business class flights from Reagan-National to Santander?

    Yes. Cheapflights offers flight deals from Reagan-National to Santander by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Santander

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Bilbao flights
Reagan-National to Bilbao flights
Baltimore to Bilbao flights
Dulles Intl to Santander flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.