Cheap Flights: Austin to/from San Jose, California or Portland, Oregon $121-$131 r/t [October-December] â American Airlines American Airlines has round-trip flights from Austin (AUS) to San Jose, California or Portland, Oregon (SJC, PDX) for $121-$131 with a connection. Flights October to December. Departures on Tuesday, Wednesday, and Saturday. Extended weekends available. Origin/Destination reversible. Click for more details and booking links Cheap Flights: Austin to/from San Jose, California or Portland, Oregon $121-$131 r/t [October-December] â American Airlines . | Read More |