Cheap flights from San Antonio to the United States from $41

In general, August is the cheapest month to fly from San Antonio to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $299. If you aren’t able to travel during the month of August, then book flights to United States from San Antonio during September instead. Flights to United States in September, while not as cheap as those in August, still average around $299.

According to our data, Thursday is the cheapest day to fly to United States from San Antonio. The lowest ticket price found for a Thursday departure recently was $402. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $624. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

The cheapest time of day to fly to United States is in the afternoon when flights can be purchased for as low as $299. Try not to purchase tickets at noon because they tend to be around $730. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from San Antonio to Denver Intl for the best San Antonio - United States flight prices

You are more likely to see cheaper flights to United States from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from San Antonio for as low as $292 on momondo.

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

Frontier, Spirit Airlines, and Delta are the most popular carriers operating from San Antonio to United States

Frontier, Delta and Southwest are the top three most popular airlines that fly to United States from San Antonio according to our data. Frontier is the first choice among our users, with 35% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 10 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between San Antonio and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening 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. Thursday 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 6% of their flights experiencing any sort of delay.

66 flights are operational daily from San Antonio to United States as of March 2026. The most popular departure time for this route is 7:00AM, with 44% of flights per day taking off in the afternoon.

The number of flights available between San Antonio and United States is 467 per week as of March 2026. The most frequent departure day is Wed, with 25% of weekly flights leaving on this day.