Cheap flights from St. Louis to San Antonio (STL - SAT) from $80

Booking a flight from Lambert-St Louis (STL) to San Antonio (SAT) is your only option if you wish to fly from St. Louis to San Antonio. On a typical day, there is 1 flight from Lambert-St Louis to San Antonio, all of which are around 5h 28m for a nonstop flight. You can also purchase a plane ticket from 5 airlines when you book a flight from Lambert-St Louis to San Antonio.

Yes, there are multiple flights from St. Louis to San Antonio for under $200. The cheapest flight booked recently is on Spirit Airlines for just $122, but on average you can expect to pay $206.

There are currently 12+ open flights from St. Louis to San Antonio within the next 7 days for less than $200.

Our cheapest airline available from St. Louis to San Antonio is Spirit Airlines. Our recent data shows that you can find tickets from as low as $122 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $150 and $264 round-trip. Spirit Airlines is currently priced 68% below the average price you’ll pay for this route.

For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $80. Users have also found prices from $119 and $124 on Frontier and American Airlines, respectively.

This is defined as Lambert-St Louis Airport (STL) and San Antonio Airport (SAT). Codes like San Antonio Airport are often used to just call airports uniquely.

The amount of baggage you can bring on your St. Louis to San Antonio flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter St. Louis to San Antonio flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on St. Louis to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to San Antonio.

Yes. Cheapflights offers flight deals from St. Louis to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Many airlines flying from St. Louis to San Antonio offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on St. Louis to San Antonio flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The St. Louis to San Antonio flight deals you see on this page were last updated on 6/6.

Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from St. Louis to San Antonio.

Currently, September is the cheapest month in which you can book a flight from St. Louis to San Antonio (average of $292). Flying from St. Louis to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.