$176 Cheap Delta flights San Juan (SJU) to San Diego (SAN)

Use the “Price (lowest to highest)” filter on Expedia to search for cheap Delta Air Lines round-trip flights from $346 from SJU to SAN. Affordable one-way options from $176 are also available.**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 least expensive months to jet away to San Diego with Delta Air Lines. You could also find fantastic deals on one-way and return fares in November.

To get affordable flights from SJU to SAN with Delta Air Lines, start searching about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**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 SJU to SAN with Delta Air Lines or other airlines, use our “Nonstop” filter when looking for flights.

Sort your results by “Early Morning” and “Morning” to see the earliest flights from SJU to SAN. Leaving early means you’re 20% less likely to experience 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 primary San Diego gateway for Delta Air Lines flights from Luis Munoz Marin Intl. Airport (SJU).

Delta Air Lines makes flying from SJU to SAN more enjoyable with an excellent in-flight experience and a rewarding loyalty program. You may even earn points with Delta SkyMiles. Be sure 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.

It’s generally possible to cancel or modify your flight, although there may be a charge if you booked more than 24 hours ago. Prefer to keep your options open? Apply the “No cancel fee” and “Changes included” filters to find flights that won’t charge extra if you have to adjust your plans. To modify your booking, go to “Trips,” select your flight and click on “Manage Booking” for more details.