| Cheap Flights: Austin or San Antonio to Quito, Ecuador $289-$293 r/t â Delta Delta has round-trip flights from Austin or San Antonio (AUS/SAT) to Quito (UIO) for $289 with a connection. Flights February to June. Weekends available. Note: Carry-on bag is allowed for free on Delta. 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. We donât charge a subscription fee. All of 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 our content, you are being ripped off. Read More Cheap Flights: Austin or San Antonio to Quito, Ecuador $289-$293 r/t â Delta . | 