Cheap flights from Atlanta to San Antonio from $100

If you aren’t able to travel during the month of February, then book flights to San Antonio from Atlanta during January instead. Flights to San Antonio in January, while not as cheap as those in February, still average around $285.

The cheapest day to depart on your flight to San Antonio is on a Friday when prices can be found for as low as $349. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $427.

According to our data, the cheapest time of day to fly to San Antonio is in the afternoon. momondo users have found flights departing from Atlanta to San Antonio in the afternoon for as low as $324. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the morning, with an average ticket price of $418. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to San Antonio from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $342 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Atlanta for as low as $256 on momondo.

There are 4 cabin classes available to choose from on Atlanta to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Atlanta to San Antonio.

As of November 2026, prices for Atlanta to San Antonio flights are approximately 66% cheaper when compared to flights at the same time last year.

Frontier, Southwest, and United Airlines are the most popular carriers operating from Atlanta Hartsfield-Jackson to San Antonio

Delta, Frontier and Southwest are the top three most popular airlines that fly to San Antonio from Atlanta according to our data. Delta is the first choice among our users, with 41% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 6 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

The number of flights available between Atlanta and San Antonio is 15 per day as of November 2026. The most frequent departure time is 6:00PM, with 52% of daily flights leaving in the evening.

The number of flights available between Atlanta and San Antonio is 107 per week as of November 2026. The most frequent departure day is Wed, with 29% of weekly flights leaving on this day.