$96 Cheap Flights from San Juan (SJU) to San Antonio (SAT)

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Find available prices by choosing your travel dates.

Cheap Flights from San Juan to San Antonio (SJU-SAT)

Prices were available within the past 7 days and start at $96 for one-way flights and $192 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
American Airlines
Delta
United
Southwest Airlines
Flights from San Juan (SJU) to San Antonio (SAT)
Origin airport
Luis Munoz Marin Intl.
Destination airport
San Antonio Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$192
Distance
2178 mi

San Juan to San Antonio Flights

The cheapest times to fly from San Juan to San Antonio

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to San Antonio are during the month of May. You can find some of the cheapest flights from San Juan to San Antonio with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Juan to San Antonio

Sunday is one of the best days to book for cheap flights from San Juan to San Antonio: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Juan to San Antonio

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to San Antonio in 2025. You can also book with separate airlines for your outbound and return journeys, from $96 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to San Antonio flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to San Antonio airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to San Antonio Intl. Airport (SAT) cost?
You can score cheap return flights from Luis Munoz Marin Intl. Airport (SJU) to San Antonio Intl. Airport (SAT) starting from $221. Book your seat and get ready to go. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines flight leaving SJU on May 16 2025 and touching down at SAT. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from SJU to SAT?
The cheapest flights from SJU to SAT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SJU to SAT?
Right now, the cheapest airline operating one-way flights from SJU to SAT is Spirit Airlines. You can take off on this route from $110. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SJU on June 18 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to San Antonio Intl. Airport (SAT)?
There are no daily direct flights from Luis Munoz Marin Intl. Airport (SJU) to San Antonio Intl. Airport (SAT). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be cruising above the clouds in no time at all.
What day of the week has the most flights from SJU to SAT?
Usually you’ll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to San Antonio Intl. Airport (SAT)?
Choose a flight from Luis Munoz Marin Intl. Airport (SJU) to San Antonio Intl. Airport (SAT) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to San Antonio Intl. Airport (SAT) last-minute?
Waiting until just before your departure to book a flight from SJU to SAT often results in higher prices. While you may come across some last-minute deals, they aren’t always guaranteed. Keep your travel schedule open to maximize your chances of scoring a bargain.
Is it cheaper to book a SJU to SAT flight and hotel package?
You’ll generally save money by booking a SJU to SAT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s simple to manage it all in one convenient place. After choosing your ideal accommodations and flights, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to San Antonio Intl. Airport (SAT)?
If you reserved your SJU to SAT flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.