| Nonstop Flights: Austin to/from Fort Lauderdale $137 r/t â JetBlue JetBlue has round-trip flights from Austin (AUS) to Fort Lauderdale (FLL) for $137, NONSTOP. Flights January to March. Weekends available. Note: Carry-on bag is allowed for free on JetBlue. 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 Fort Lauderdale $137 r/t â JetBlue . | 