$174 Cheap Delta flights San Diego (SAN) to San Antonio (SAT)

Landing cheap one-way Delta Air Lines flights from SAN to SAT from $174 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Alternatively, check out our affordable round-trip fares from $347 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Look for one-way or round-trip flights to San Antonio in January or September. You could find a cheap fare with Delta Air Lines during these off-peak times.

Begin your search one to three months ahead of your travel date to find cheap fares on Delta Air Lines flights from San Diego Intl. Airport (SAN) to San Antonio Intl. Airport (SAT). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To find out if there’s a direct trip from SAN to SAT with Delta Air Lines or other carriers, check the “Nonstop” box when searching for tickets.

Find Delta Air Lines’s earliest flights from SAN to SAT by checking the “Early Morning” and “Morning” filters. Not only will you get to where you’re going sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Catch a Delta Air Lines flight from San Diego Intl. Airport (SAN) to San Antonio, and you’ll probably land at San Antonio Intl. Airport (SAT). This is the airline’s main hub here.

With a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is the leading choice for many passengers heading from SAN to SAT. What’s more, if you’re a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

In most cases, you can cancel or change your flight, although there may be a charge if you made your booking more than 24 hours ago. Need to keep your options open? Apply the “Changes included” or “No cancel fee” filter to find flights that won’t charge extra if you need to alter your plans. To update your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for further information.