$62+ Cheap flights from Ontario to San Antonio (ONT - SAT)

For as low as $148, Frontier can have you in San Antonio from Ontario in 11h 09m. The distance between Ontario and San Antonio is about 1163 mi.

According to our current data, Frontier ($110), Spirit Airlines ($118), and Delta ($200) offers the cheapest pricing from Ontario to San Antonio. Frontier is 66% cheaper than the average price of flights available within the next 90 days to this destination.

The cheapest airlines for a one-way flight from Ontario to San Antonio are Frontier ($71), United Airlines ($109), and American Airlines ($128).

Yes. In addition to deals on Ontario 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 Ontario to San Antonio.

Yes. Cheapflights offers flight deals from Ontario 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.

Currently, September is the cheapest month in which you can book a flight from Ontario to San Antonio (average of $58). Flying from Ontario to San Antonio in July is currently the most expensive (average of $98). 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.