| Nonstop Flights: Austin to/from Boston $137 r/t â JetBlue / Delta JetBlue and Delta have round-trip flights from Austin (AUS) to Boston (BOS) for $137, NONSTOP. Flights in February. Weekends available. Note: Carry-on bag is allowed for free on JetBlue and Delta. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate. We donât charge a subscription fee. All of our deal notifications are available for FREE via Instagram, Facebook, Twitter, our Webpage, and our E-mail list. If you are paying someone a subscription fee for our content, you are being ripped off. Read More Nonstop Flights: Austin to/from Boston $137 r/t â JetBlue / Delta . | 