$104 Cheap Frontier Airlines flights Atlanta (ATL) to San Diego (SAN)

Scoring cheap one-way Frontier Airlines flights from ATL to SAN from $104 on Expedia is easy — just filter by “Price (lowest to highest).” Alternatively, check out our affordable round-trip fares from $154 for your next break.**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.

Browse for round-trip or one-way flights to San Diego in January or November. You could find cheaper fares with Frontier Airlines during these off-peak months.

Begin your search one to three months ahead of your departure date to get cheap fares on Frontier Airlines flights from Hartsfield-Jackson Atlanta Intl. Airport (ATL) 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 reduce 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 the timing right, and you can enjoy significant savings on domestic journeys.*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 browsing for direct Frontier Airlines flights from ATL to SAN. You’ll also be able to compare other airlines servicing the same nonstop trip.

To find the earliest departure from ATL to SAN with Frontier Airlines, filter your search by “Morning” and “Early Morning.” Choosing an early flight generally means cancellations are less likely.**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.

Jump on a Frontier Airlines flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to San Diego, and you’ll most likely arrive at San Diego Intl. Airport (SAN). This is the airline’s primary hub in this city.

With a rewarding loyalty program, Frontier Airlines is a top choice for many passengers journeying from ATL to SAN. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*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 is typically charged if you cancel or change your booking more than 24 hours after it’s confirmed. To secure plane tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when searching for flights. To learn more about canceling or changing your reservation, visit “Trips,” select your flight and tick “Manage Booking.”