Cheap flights from Atlanta to San Juan from $81

If you’re not able to fly to San Juan in August, then September is your next best option. Flight prices from Atlanta to San Juan during September average around $103.

The cheapest day to depart from Atlanta to San Juan is on a Tuesday when prices can be found for as low as $317. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $371.

The cheapest time of day to fly to San Juan is in the morning when flights can be purchased for as low as $338. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $378 on average. Flights to San Juan from Atlanta in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Atlanta Hartsfield-Jackson to San Juan Luis Munoz Marin Intl for the best Atlanta Hartsfield-Jackson - San Juan flight prices

You are more likely to see cheaper flights to San Juan from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $326 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Atlanta for as low as $278 on momondo.

Spirit Airlines and Delta are the most popular carriers operating from Atlanta Hartsfield-Jackson to San Juan

Frontier, Delta and Spirit Airlines are the top three most popular airlines that fly to San Juan from Atlanta according to our data. Frontier is the first choice among our users, with 44% of people opting to fly with this airline when traveling to San Juan. Keep in mind that there are 7 different airlines that fly to San Juan on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% of flights between Atlanta and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 21% of their flights experiencing any sort of delay.

The number of flights available between Atlanta and San Juan is 13 per day as of May 2026. The most frequent departure time is 4:00PM, with 42% of daily flights leaving in the afternoon.

The number of flights available between Atlanta and San Juan is 97 per week as of May 2026. The most frequent departure day is Sun, with 21% of weekly flights leaving on this day.