| Nonstop Flights: Austin or San Antonio to Charlotte, NC or Phoenix $97 r/t [January-March] â American Airlines American Airlines has round-trip flights from Austin or San Antonio (AUS/SAT) to Phoenix or Charlotte (PHX/CLT) for $97, NONSTOP. Flights January to March. No Weekends. Departures on Monday, Tuesday, Wednesday, and Thursday. Change fees are waived and carry-on bag is allowed for free. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate. Want a notification sent straight to your phone when any new deals are found? Join our Telegram channel and never miss another deal. Patreon supporters receive a recap of all the airfare deals currently available from Austin and San Antonio everyday. We donât charge a subscription fee. Our deal notifications are available for FREE via Instagram, Facebook, Twitter, Telegram, our Webpage, and our E-mail list. If you are paying someone a subscription fee for this content, you are being ripped off. Click for more details and booking links Nonstop Flights: Austin or San Antonio to Charlotte, NC or Phoenix $97 r/t [January-March] â American Airlines . | 