| Nonstop Flights: Austin to San Jose, California $137 r/t [August-December] â Alaska Airlines Alaska Airlines has round-trip flights from Austin (AUS) to San Jose, California (SJC) for $137, NONSTOP. Flights August to December. Departures on Tuesday, Wednesday, and Saturday. Extended weekends available. Click for more details and booking links Nonstop Flights: Austin to San Jose, California $137 r/t [August-December] â Alaska Airlines . | 