Cheap flights from Atlanta to San Diego from $128

If you are unable to visit San Diego during the month of September, then departing from Atlanta during the month August is also very affordable. Most momondo users find prices during this month for around $287.

The cheapest day to depart from Atlanta to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $358. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $538. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $336. Flights in the morning are often more expensive with an average ticket price of $502.

Fly from Atlanta Hartsfield-Jackson to San Diego for the best Atlanta Hartsfield-Jackson - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $356 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Atlanta for as low as $283 on momondo.

Southwest, Sun Country Air, and Delta are the most popular carriers operating from Atlanta Hartsfield-Jackson to San Diego

Delta, Frontier and Alaska Airlines are the top three most popular airlines that fly to San Diego from Atlanta according to our data. Delta is the first choice among our users, with 53% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 9 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $119.

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 7h 19m.

Phoenix (PHX) has the shortest average layover time for this route: 1h 24m.

The number of flights available between Atlanta and San Diego is 22 per day as of May 2026. The most frequent departure time is 9:00PM, with 50% of daily flights leaving in the afternoon.

The number of flights available between Atlanta and San Diego is 158 per week as of May 2026. The most frequent departure day is Fri, with 16% of weekly flights leaving on this day.