$605 Cheap Flights from Baltimore (BWI) to Santander (SDR)

View $605 flight on Thu, Oct 23, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Santander (SDR)

Cheap Flights from Baltimore to Santander (BWI-SDR)

Prices were available within the past 7 days and start at $605 for one-way flights and $572 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Nov 24 - Thu, Dec 11
BWI
Baltimore
SDR
Santander
$572 Roundtrip, found 4 days ago
$572
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Nov 24 from Baltimore to Santander, returning Thu, Dec 11, priced at $572 found 4 days ago
British Airways
Mon, Nov 17 - Thu, Dec 4
BWI
Baltimore
SDR
Santander
$580 Roundtrip, found 4 days ago
$580
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Nov 17 from Baltimore to Santander, returning Thu, Dec 4, priced at $580 found 4 days ago
British Airways
Sat, Dec 6 - Tue, Dec 23
BWI
Baltimore
SDR
Santander
$589 Roundtrip, found 4 days ago
$589
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Dec 6 from Baltimore to Santander, returning Tue, Dec 23, priced at $589 found 4 days ago
British Airways
Mon, Nov 10 - Sun, Nov 23
BWI
Baltimore
SDR
Santander
$630 Roundtrip, found 4 days ago
$630
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Nov 10 from Baltimore to Santander, returning Sun, Nov 23, priced at $630 found 4 days ago
British Airways
Wed, Dec 31 - Fri, Jan 16
BWI
Baltimore
SDR
Santander
$639 Roundtrip, found 4 days ago
$639
Roundtrip
found 4 days ago
Select British Airways flight, departing Wed, Dec 31 from Baltimore to Santander, returning Fri, Jan 16, priced at $639 found 4 days ago
British Airways
Sat, Dec 6 - Wed, Dec 24
BWI
Baltimore
SDR
Santander
$668 Roundtrip, found 4 days ago
$668
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Dec 6 from Baltimore to Santander, returning Wed, Dec 24, priced at $668 found 4 days ago
British Airways
Mon, Nov 17 - Wed, Dec 3
BWI
Baltimore
SDR
Santander
$684 Roundtrip, found 4 days ago
$684
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Nov 17 from Baltimore to Santander, returning Wed, Dec 3, priced at $684 found 4 days ago
British Airways
Wed, Dec 31 - Sun, Jan 11
BWI
Baltimore
SDR
Santander
$694 Roundtrip, found 4 days ago
$694
Roundtrip
found 4 days ago
Select British Airways flight, departing Wed, Dec 31 from Baltimore to Santander, returning Sun, Jan 11, priced at $694 found 4 days ago
British Airways
Mon, Nov 10 - Tue, Nov 25
BWI
Baltimore
SDR
Santander
$705 Roundtrip, found 4 days ago
$705
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Nov 10 from Baltimore to Santander, returning Tue, Nov 25, priced at $705 found 4 days ago
Iberia
Tue, Dec 2 - Fri, Jan 30
BWI
Baltimore
SDR
Santander
$840 Roundtrip, found 15 hours ago
$840
Roundtrip
found 15 hours ago
Select Iberia flight, departing Tue, Dec 2 from Baltimore to Santander, returning Fri, Jan 30, priced at $840 found 15 hours 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 $870
SDR
Santander
CheapestClosest
Average driving time to city center9 min
Flights from $870

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR) cost?
Get a cheap one-way flight from $605 or cheap return flight from $572 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR) 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR)?
Traveling in November is a good way to save, as it's the cheapest month for flights between BWI and SDR. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BWI to SDR flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR)?
You'll have to catch a flight with a layover when traveling from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from BWI to SDR?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR)?
To avoid possible delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR) route, travel before 3 PM. Later flights are 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR) last-minute?
Booking your plane ticket from BWI to SDR shortly before your trip is generally more expensive. But if there's some wiggle room with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a BWI to SDR flight and hotel package?
Opting for a BWI to SDR flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our wide range of hotels and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Santander Airport (SDR)?
If you booked your BWI to SDR flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Santander
Roundtrip price
$571
Distance
3669 mi

Book with confidence

Baltimore to Santander Flights

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

 

The best time to book a flight from Baltimore to Santander

Sunday is one of the best days to book for cheap flights from Baltimore 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 Baltimore 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 Baltimore to Santander in 2025. You can also book with separate airlines for your outbound and return journeys, from $605 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 Baltimore 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 Baltimore 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.

 

Baltimore to Santander Flights

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*Available to One Key members.