To save up to 34% on this flight, we recommend booking at least 35 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Hays to San Antonio from $146 1-2 weeks out and tickets from $182 for flights departing within the next 72 hours.
One of the essential ways to save on airfare from Hays to San Antonio is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 4% on airfare.