| Cheap Flights: San Antonio to/from San Jose del Cabo $258-$273 r/t â United United has round-trip flights from San Antonio (SAT) to San Jose del Cabo (SJD) for $258-$273 with a connection. Flights January, February, March, and May. Extended Weekends available. Note: United âBasic Economyâ 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. 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). We donât charge a subscription fee. All of our deal notifications are available for FREE via Instagram, Facebook, Twitter, 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: San Antonio to/from San Jose del Cabo $258-$273 r/t â United . | 