Cheap flights from Miami to San Antonio from $80

If you aren’t able to travel during the month of January, then book flights to San Antonio from Miami during August instead. Flights to San Antonio in August, while not as cheap as those in January, still average around $254.

The cheapest day to depart on your flight to San Antonio is on a Thursday when prices can be found for as low as $270. 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 $537.

According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Miami to San Antonio in the evening for as low as $290. 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 at noon, with an average ticket price of $392. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Miami to San Antonio for the best Miami - San Antonio flight prices

You are more likely to see cheaper flights to San Antonio from Miami when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $321 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Miami for as low as $175 on momondo.

There are 3 cabin classes available to choose from on Miami to San Antonio 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 11% on your flight if you consider stops on a Miami to San Antonio flight.

As of March 2026, prices for Miami to San Antonio flights are approximately 213% more expensive when compared to flights at the same time last year.

Southwest and United Airlines are the most popular carriers operating from Miami to San Antonio

Spirit Airlines, American Airlines and Southwest are the top three most popular airlines that fly to San Antonio from Miami according to our data. Spirit Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 7 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% of flights between Miami and San Antonio have experienced a delay on any given week. The average delay length over the past 12 months has been 131 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the morning 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, American Airlines have had the least number of delays on this route over the last 12 months; with about 25% of their flights experiencing any sort of delay.

Atlanta (ATL) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $351.

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 6h 09m.

Atlanta (ATL) has the shortest average layover time for this route: 1h 10m.

2 flights are operational daily from Miami to San Antonio as of March 2026. The most popular departure time for this route is 9:00PM, with 100% of flights per day taking off in the evening.

The number of flights available between Miami and San Antonio is 17 per week as of March 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.