| Cheap Flights: Austin or San Antonio to San Jose or Liberia, Costa Rica $200-$297 r/t [January-May.2021] â Delta Delta has round-trip flights from Austin or San Antonio (AUS/SAT) to San Jose or Liberia, Costa Rica (SJO/LIR) for $200-$297 with a connection. Liberia flights January to March. San Jose flights January to May. Weekends available. A negative COVID PCR test result is required for entry. Change fees are being 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 Cheap Flights: Austin or San Antonio to Liberia, Costa Rica $200-$297 r/t [January-May.2021] â Delta . | 
