Cheap flights from San Antonio to San Juan from $88

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $305.

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from San Antonio is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $236. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from San Antonio because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $400.

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $212. Flights in the morning are often more expensive with an average ticket price of $380.

Fly from San Antonio to San Juan Luis Munoz Marin Intl for the best San Antonio - San Juan Luis Munoz Marin Intl flight prices

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $382 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from San Antonio for as low as $294 on momondo.

There are 2 cabin classes available to choose from on San Antonio to San Juan Luis Munoz Marin Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 1% on your flight if you consider stops on a San Antonio to San Juan Luis Munoz Marin Intl Airport flight.

As of March 2026, prices for San Antonio to San Juan Luis Munoz Marin Intl Airport flights are approximately 10% cheaper when compared to flights at the same time last year.

Spirit Airlines, United Airlines, and Delta are the most popular carriers operating from San Antonio to San Juan Luis Munoz Marin Intl

American Airlines, Southwest and Spirit Airlines are the top three most popular airlines that fly to San Juan Luis Munoz Marin Intl Airport from San Antonio according to our data. American Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 7 different airlines that fly to San Juan Luis Munoz Marin Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between San Antonio and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 128 minutes.

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

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

According to our data, Spirit Airlines 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.

Atlanta (ATL) was the most common stop: 30% of momondo users choosing 1-stop flights on this route connected there.

Flights via Tampa (TPA) offer the lowest average round-trip price of $266.

Flights connecting via Tampa (TPA) have the shortest average one-way travel time: 6h 20m.

Miami (MIA) has the shortest average layover time for this route: 1h 26m.