Cheap flights from San Antonio to Las Vegas from R2 146

The month of December is, on average, the cheapest month to fly to Las Vegas from San Antonio, with most prices found around R4 625. The month of January is another great option to travel to Las Vegas, with average flight prices from San Antonio averaging around R4 658.

Fly from San Antonio to Las Vegas Harry Reid Intl for the best San Antonio - Las Vegas Harry Reid Intl flight prices

You are more likely to see cheaper flights to Las Vegas from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around R5 545 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from San Antonio for as low as R4 458 on momondo.

There is only 1 cabin class available to choose from on San Antonio to Las Vegas flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 16% of flights between San Antonio and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Southwest have had the fewest delays on this route over the last 12 months, with about 15% of their flights experiencing any sort of delay.

As of November 2026, 2 flights take off from San Antonio and land in Las Vegas each day. The most common flight departure time for this route is 14:00, with 45% of daily flights taking off in the afternoon.

As of November 2026, 19 flights take off from San Antonio and land in Las Vegas each week. The most common flight departure day for this route is Mon, with 32% of weekly flights taking off on this day.