| Cheap Flights: Austin to Aruba $278-$309 r/t [September-November] â JetBlue JetBlue has round-trip flights from Austin (AUS) to Aruba (AUA) for $278-$309 with a connection. Flights September to November. Weekends available. Aruba has additional requirements for entry, such as a $15 travel-insurance policy. Details are on their website. Click for more details and booking links Cheap Flights: Austin to Aruba $278-$309 r/t [September-November] â JetBlue . | 