$89 Cheap Delta flights San Jose (SJC) to San Diego (SAN)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap Delta Air Lines return flights from $171 from SJC to SAN. Affordable one-way options from $89 are also on offer.**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.

Delta Air Lines flights to San Diego are usually cheaper in the low-season months of January and November. Whether you’re searching for a one-way or a return ticket, you could score a better deal then.

Look for cheap Delta Air Lines flights from Norman Y. Mineta San Jose Intl. Airport (SJC) to San Diego Intl. Airport (SAN) one to three months before your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the best day to book a domestic flight is usually Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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 figure out if there’s a direct trip from SJC to SAN with Delta Air Lines or other carriers, select the “Nonstop” filter when searching for flights.

Find Delta Air Lines’s earliest flights from SJC to SAN by checking the “Early Morning” and “Morning” filters. Not only will you get to where you’re going sooner, early departures also have a 20% less chance of being canceled.**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.

San Diego Intl. Airport (SAN) is the primary San Diego gateway for Delta Air Lines flights from Norman Y. Mineta San Jose Intl. Airport (SJC).

With a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a favorite for many travelers flying from SJC to SAN. Plus, 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 additional fees may apply if you made your booking more than 24 hours ago. Need flexible options? Apply the “No cancel fee” or “Changes included” filter to find flights that won’t charge you extra if you have to alter your plans. To modify your booking, go to “Trips,” select your flight and click on “Manage Booking” for more details.