$89 Cheap Delta flights Oakland (OAK) to San Diego (SAN)

Set the “Price (lowest to highest)” filter on Expedia to find cheap Delta Air Lines round-trip flights from $177 from OAK to SAN. Affordable one-way fares 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 tend to be cheaper in the low-season months of January and November. Whether you need a one-way or round-trip ticket, you could land a better deal then.

Search for cheap Delta Air Lines flights from Oakland Intl. Airport (OAK) to San Diego Intl. Airport (SAN) one to three months before your departure. 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 of the week to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book 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.

Click on the “Nonstop” filter when looking for direct Delta Air Lines flights from OAK to SAN. It’s also a great way to compare other carriers servicing the same nonstop journey.

To find the earliest departure from OAK to SAN with Delta Air Lines, filter your results by “Early Morning” and “Morning.” Booking an early flight generally means you’ll experience 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.

Delta Air Lines flights from Oakland Intl. Airport (OAK) to San Diego come in to San Diego Intl. Airport (SAN). This is the main entry point here.

Delta Air Lines makes traveling from OAK to SAN enjoyable with an excellent in-flight experience and a rewarding loyalty program. You may even earn points with Delta SkyMiles. Remember to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are usually free within 24 hours of making your booking, but your airline may charge you after that. For more details about modifying your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to adjust your plans without being charged, check the “Changes included” and “No cancel fee” filters when planning your next trip.