| Nonstop Flights: Austin to/from Los Angeles $124-$133 r/t [May, Aug-Mar] â United / Delta / Alaska Airlines United, Delta, and Alaska Airlines have round-trip flights from Austin (AUS) to Los Angeles (LAX) for $124-$133, NONSTOP. Flights in May, August, September, October, November, December, January, February, and March. Weekends available. Origin/Destination reversible. Carry-on bag and personal item are allowed without additional fee on Delta and Alaska Airlines. Unitedâs âBasic Economyâ fares do not allow for a free carry-on bag. Only a personal item (like a small laptop bag) is free. Seats are randomly assigned for free prior to boarding. If you have the United Explorer credit-card, use the âfree checked bagâ perk. The personal item size on United is smaller (9 x 10 x 17 inches) than Frontier or Spirit (8 x 13 x 18 inches). Click for more details and booking links Nonstop Flights: Austin to/from Los Angeles $124-$133 r/t [May, Aug-Mar] â United / Delta / Alaska Airlines . | 