Austin (AUS) to Las Vegas (LAS): 1,088 miles (1,752 km) great-circle, about 2h 40m nonstop by our estimate. Cheapest fare observed: $320 round-trip on Frontier, nonstop, departing May 21, 2026.
$320 round-trip, Frontier F94683, departing 2026-05-21 at 22:52, returning 2026-05-25. The recorded itinerary left on a Thursday, returning on a Monday 4 nights later; the fare was observed 26 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $320, it ranked 17th of the 30 round-trip fares we recorded from AUS (median $292). That is 29.4 cents per great-circle mile (round-trip price over one-way distance), above the AUS median of 22.5 cents across 30 round-trip routes.
Routes from AUS of similar length: Miami (1,101 mi) at $283 and Fort Lauderdale (1,103 mi) at $258.
Frontier had the cheapest fare on 13 of 30 AUS routes. It is the 23rd longest of the 30 routes we track from AUS.
Of 32 departure airports with a fare to Las Vegas, Austin (AUS) ranked 29th at $320. Lowest: $51 from San Francisco (SFO); highest: $465 from Los Cabos (SJD); 16 nonstop. Cheapest-fare airlines (routes): Frontier (24), Alaska Airlines (2), Air Canada (1), American Airlines (1), JetBlue (1) and Southwest (1), plus 2 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Chicago, America/Los_Angeles; flight time is our estimate.