$89 Cheap Delta flights San Francisco (SFO) to San Diego (SAN)

Make use of the “Price (lowest to highest)” filter on Expedia to find cheap Delta Air Lines round-trip flights from $171 from SFO to SAN. Affordable one-way fares from $89 are available as well.**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.

January is one of the most affordable months to jet away to San Diego with Delta Air Lines. You could also find great prices on one-way and return fares in November.

Start searching one to three months before your departure to find cheap fares on Delta Air Lines flights from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance versus 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.* Get your timing spot on, 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 figure out if there’s a direct journey from SFO to SAN with Delta Air Lines or other airlines, check the “Nonstop” box when searching for tickets.

Find Delta Air Lines’s earliest flights from SFO to SAN by checking the “Morning” and “Early Morning” filters. Not only will you get to your destination 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.

San Diego Intl. Airport (SAN) is the main San Diego gateway for Delta Air Lines flights from San Francisco Intl. Airport (SFO).

Jetting off from SFO to SAN with Delta Air Lines comes with a range of perks, such as a rewarding loyalty program and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to use on select future travel purchases. That’s on top of the Delta SkyMiles points you can earn with Delta Air Lines.*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 modify your flight, although there may be additional fees if you made your booking over 24 hours ago. Need to keep your options open? Use our “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you have to revise your plans. To modify your booking, visit “Trips,” select your flight and click on “Manage Booking” for more details.