| Nonstop Flights: Austin to/from Miami $123 r/t â American American Airlines has round-trip flights from Austin (AUS) to Miami (MIA) for $123, NONSTOP. Flights January to February. No Friday departures. Extended Weekends available. Origin/Destination reversible. Note: Carry-on bag is allowed for free on American Airlines. 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 Miami $123 r/t â American . | 
