| Nonstop Flights: Austin to Newark/New York $114-$119 r/t [August-November] â Spirit Spirit has round-trip flights from Austin (AUS) to New York/Newark (EWR) for $114-$119, NONSTOP. Flights August to November. Departures on Monday, Tuesday, Wednesday, Thursday, and Saturday. Extended weekends available. Click for more details and booking links Nonstop Flights: Austin to Newark/New York $114-$119 r/t [August-November] â Spirit . | 