Delta, United, and American Airlines have round-trip flights from San Antonio and Austin (SAT/AUS) to San José (SJO) for $365-$374 with a connection. Flights April to October. Weekends available. Origin/Destination reversible.
Note: Carry-on bag is allowed for free on Delta and American Airlines. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Note: United “Basic Economy” fares do not include a free carry-on bag. Only a personal item (like a small laptop bag) is free. Seats are randomly assigned for free prior to boarding. If you have the United MileagePlus credit-card, use the “free checked bag” perk.
Note: The personal item size on United flights is smaller (9-in/10-in/17-in) than Frontier or Spirit (8-in/14-in/18-in).