Cheap flights from San Antonio to San Juan from $186

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $322.

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from San Antonio is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $273. 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 $376.

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 $420 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 $377 on momondo.

There are 2 cabin classes available to choose from on San Antonio to San Juan Luis Munoz Marin Intl Airport 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 San Antonio to San Juan Luis Munoz Marin Intl Airport.

As of June 2026, prices for San Antonio to San Juan Luis Munoz Marin Intl Airport flights are approximately 12% more expensive when compared to flights at the same time last year.

Frontier, Southwest, and JetBlue are the most popular carriers operating from San Antonio to San Juan Luis Munoz Marin Intl

American Airlines, Southwest and United 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 39% of people opting to fly with this airline when traveling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 6 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 23% 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 120 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.

Wednesday 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 23% of their flights experiencing any sort of delay.

Atlanta (ATL) was the most common stop: 32% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Tampa (TPA) have the shortest average one-way travel time: 6h 13m.

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