Cheap flights from San Francisco Bay Area to San Antonio from $109

If you aren’t able to travel during the month of May, then book flights to San Antonio from San Francisco Bay Area during July instead. Flights to San Antonio in July, while not as cheap as those in May, still average around $117.

The cheapest day to depart on your flight to San Antonio is on a Wednesday when prices can be found for as low as $404. 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 Monday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Monday is $623.

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 San Francisco Bay Area to San Antonio in the evening for as low as $426. 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 in the morning, with an average ticket price of $502. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from San Francisco to San Antonio for the best San Francisco Bay Area - San Antonio flight prices

You are more likely to see cheaper flights to San Antonio from San Francisco Bay Area when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio 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 Antonio from San Francisco Bay Area for as low as $278 on momondo.

There are 4 cabin classes available to choose from on San Francisco Bay Area to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Southwest, Delta, and Frontier are the most popular carriers operating from San Francisco Bay Area to San Antonio

United Airlines, Southwest and Delta are the top three most popular airlines that fly to San Antonio from San Francisco Bay Area according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 8 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

4 flights are operational daily from San Francisco Bay Area to San Antonio as of June 2026. The most popular departure time for this route is 6:00PM, with 93% of flights per day taking off in the evening.

31 flights are operational weekly from San Francisco Bay Area to San Antonio as of June 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.