Cheap flights from Dallas to San Antonio from $89

If you aren’t able to travel during the month of September, then book flights to San Antonio from Dallas during August instead. Flights to San Antonio in August, while not as cheap as those in September, still average around $281.

The cheapest day to depart on your flight to San Antonio is on a Saturday when prices can be found for as low as $239. 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 $529.

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 Dallas to San Antonio in the evening for as low as $320. 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 $356. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Dallas/Fort Worth to San Antonio for the best Dallas - San Antonio flight prices

You are more likely to see cheaper flights to San Antonio from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $330 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Dallas for as low as $198 on momondo.

There are 3 cabin classes available to choose from on Dallas to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

American Airlines, Southwest, and Frontier are the most popular carriers operating from Dallas to San Antonio

Southwest, American Airlines and United Airlines are the top three most popular airlines that fly to San Antonio from Dallas according to our data. Southwest is the first choice among our users, with 56% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 4 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

The number of flights available between Dallas and San Antonio is 50 per day as of August 2026. The most frequent departure time is 7:00PM, with 41% of daily flights leaving in the evening.

350 flights are operational weekly from Dallas to San Antonio as of August 2026. The most popular departure day for this route is Sun, with 17% of flights per week taking off on this day.