| Nonstop Flights: Austin to/from Los Angeles $53-$98 r/t â Spirit / Delta / American / United Delta, Spirit, United, and American have round-trip flights from Austin (AUS) to Los Angeles (LAX) for $53-$98, NONSTOP. Flights January to May. Most departures are on Tuesdays, Wednesdays, or Saturdays. Cheapest fare is on Spirit. Note: Carry-on bag is allowed for free on Delta and American. Note: Spirit and United fares do not include a free carry-on bag. Only a small personal item, like a Jansport City Scout backpack is free. You can avoid paying for seat selection if you accept the randomly assigned seat prior to boarding. We donât charge a subscription fee. All of our deal notifications are available for FREE via Instagram, Facebook, Twitter, our Webpage, and our E-mail list. If you are paying someone a subscription fee for our content, you are being ripped off. Read More Nonstop Flights: Austin to/from Los Angeles $53-$98 r/t â Spirit / Delta / American / United . | 