| Nonstop Flights: Austin to Boston $167 r/t [September-November] â Delta / jetBlue Delta and jetBlue have round-trip flights from Austin (AUS) to Boston (BOS) for $167, NONSTOP. Flights September to November. Departures on Tuesday, Wednesday, and Saturday. Extended weekends available. Carry-on bag is allowed for free on Delta. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate. Click for more details and booking links Nonstop Flights: Austin to Boston $167 r/t [September-November] â Delta / jetBlue . | 