| Cheap Flights: Austin to/from Aruba $352-$366 r/t [August-September] â JetBlue JetBlue has round-trip flights from Austin (AUS) to Aruba (AUA) for $352-$366 with a connection. Flights August to September. Departures on Monday, Friday, and Sunday. Very few extended weekends available. Origin/Destination reversible. Click for more details and booking links Cheap Flights: Austin to/from Aruba $352-$366 r/t [August-September] â JetBlue . | 