$145 Cheap Delta flights Jacksonville (JAX) to San Diego (SAN)

Scoring cheap one-way Delta Air Lines flights from JAX to SAN from $145 on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $236 for your next exciting getaway.**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 cheapest months to jet away to San Diego with Delta Air Lines. You could also find excellent prices on return and one-way fares in November.

For cheap Delta Air Lines fares from Jacksonville Intl. Airport (JAX) to San Diego Intl. Airport (SAN), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall price. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**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.

Fill in your dates, press search and select the “Nonstop” filter on Expedia to find any direct flights from JAX to SAN with Delta Air Lines or other carriers.

To find the earliest departures from JAX to SAN with Delta Air Lines, filter your search by “Morning” and “Early 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.

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

Heading from JAX to SAN with Delta Air Lines comes with a variety of perks, including a rewarding loyalty program and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That’s in addition to 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.

Depending on the type of fare you purchased, a fee typically applies if you change or cancel your flight more than 24 hours after it has been confirmed. To find plane tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when searching for flights. For more information on canceling or changing your reservation, go to “Trips,” select your flight and click on “Manage Booking.”