| Cheap Flights: Austin to/from Long Beach, California $108-$113 [Aug-Nov] (Weekends) â Southwest Southwest has round-trip flights from Austin (AUS) to Long Beach, California (LGB) for $108-$113 with a connection. $53-$57 each-way. Flights mid-August to November. Weekends available. Origin/Destination reversible. Samâs Club is selling $500 Southwest Gift Cards for $449 [linked]. You can save an additional $50 on Southwest flights if you travel often enough or with a big enough group to burn through the Gift card credit. Note: Nonstops are available for $10 more, each-way. Click for more details and booking links Cheap Flights: Austin to/from Long Beach, California $108-$113 [Aug-Nov] (Weekends) â Southwest . | 