We do not have enough data on this route to provide a reliable graph showing how many days before departure it is the best to book.
However, usually the closer it is to the departure, the more expensive the tickets are.
The most popular airlines on the route Salt Lake City Intl Airport - San Antonio Intl Airport: Delta Airlines (DL), Frontier Airlines (F9).
There is no direct flight on the route from Salt Lake City Intl Airport to San Antonio Intl Airport
Il volo con scalo più breve dura 5h 5min.
Salt Lake City (UT) San Antonio (TX)