Delta has round-trip flights from San Antonio (SAT) to Las Vegas (LAS) for $173 with a connection. $87 one-way. Flights October and November. A few weekends available. Origin/Destination reversible. No Thanksgiving dates available.
Category: <span>Las Vegas</span>
Frontier has round-trip flights from Austin (AUS) to Las Vegas (LAS) for $56-$83, NONSTOP. Denver Flights August to November. Las Vegas/Orlando Flights August to October. Origin/Destination reversible.
Denver has the most calendar availability (Frontier Hub)
Other cities have limited availability (see example date list)
Southwest has round-trip flights from Austin (AUS) to Las Vegas, Minneapolis, or Chicago (LAS, MSP, MDW) for $164-$196, NONSTOP. Cheapest Departures on Tuesday, Wednesday, and Saturday. Origin/Destination reversible.
Las Vegas: Flights August to October.
Minneapolis: Flights August to September.
Chicago: Flights August to December.
American Airlines has round-trip flights from San Antonio (SAT) to Las Vegas, Nashville, Orlando, or Tampa (LAS, BNA, MCO, TPA) for $187 with a connection. Flights March to September. Weekends available. Origin/Destination reversible.
Southwest has round-trip flights from Austin (AUS) to Las Vegas, San Francisco, Nashville, or Portland Oregon (LAS, SFO, BNA, PDX) for $84-$150, NONSTOP or with connections. Flights January to February. Departures on Monday, Tuesday, Wednesday, Thursday, and Saturday. Origin/Destination reversible.
Southwest will announce a domestic airfare sale tomorrow, but their prices are already on their calendar. There is a VERY GOOD CHANCE that prices drop again when competitors match. So you may want to wait a bit before booking to see what pans out. (These are still good prices for the route, which is why I’m mentioning them now.)
Southwest has round-trip flights from Austin (AUS) to Las Vegas (LAS) for $117-$128, NONSTOP. Flights July to August. Extended weekends available. Origin/Destination reversible.
Southwest has round-trip flights from Austin (AUS) to Las Vegas (LAS) for $74-$99, NONSTOP. Flights July to August. Extended weekends available. Origin/Destination reversible.
Southwest has round-trip flights from Austin (AUS) to Las Vegas (LAS) for $117-$137, NONSTOP. Flights June to August. No Thursday departures. Very few weekends available. Origin/Destination reversible.
Southwest and Delta have round-trip flights from Austin (AUS) to Las Vegas (LAS) for $117, NONSTOP. Flights May to August. Departures on Monday, Tuesday, Wednesday, and Sunday. Origin/Destination reversible.
Delta has round-trip flights from Austin (AUS) to Las Vegas (LAS) for $117-$127, NONSTOP. Flights May to August. No Friday departures. Extended weekends available. Origin/Destination reversible.
Southwest and Delta have round-trip flights from Austin (AUS) to Las Vegas (LAS) for $149-$165, NONSTOP. Flights March to May. No Sunday departures. Very few weekends available. Origin/Destination reversible.
Southwest has round-trip flights from Austin (AUS) to Las Vegas (LAS) for $134, NONSTOP. Flights November to December. No Saturday departures. Weekends available. Origin/Destination reversible. Holiday blackouts.

Cheap Flights: San Antonio to Las Vegas or Orlando $133-$142 r/t [September-May] – American Airlines
American Airlines has round-trip flights from San Antonio (SAT) to Las Vegas or Orlando (LAS, MCO) for $133-$142 with a connection. Flights September to May. Departures on Tuesday, Wednesday, and Saturday. Extended weekends available.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
