| Cheap Flights: Austin to Aruba $291-$294 r/t [May, Oct-Feb] â American Airlines American Airlines has round-trip flights from Austin (AUS) to Aruba (AUA) for $291-$294 with a connection. Flights in May, September, October, November, December, January, and February. Most availability is after August. Click for more details and booking links Cheap Flights: Austin to Aruba $291-$294 r/t [May, Oct-Feb] â American Airlines . | 
