| Nonstop Flights: San Antonio to/from Mexico City $218-$246 r/t [September-February] â Aeromexico Aeromexico has round-trip flights from San Antonio (SAT) to Mexico City (MEX) for $218-$246, NONSTOP. Flights September to February. Weekends available. Origin/Destination reversible. 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: San Antonio to/from Mexico City $218-$246 r/t [September-February] â Aeromexico . | 