| Cheap Flights: Austin to/from San Jose, Costa Rica $241-$250 r/t [January-March] â JetBlue JetBlue has round-trip flights from Austin (AUS) to San Jose, Costa Rica (SJO) for $241-$250 with a connection. Flights January to March. Departures on Monday, Friday, and Sunday. Very few extended weekends available. Origin/Destination reversible. Click for more details and booking links Cheap Flights: Austin to/from San Jose, Costa Rica $241-$250 r/t [January-March] â JetBlue . | 
