Southwest has round-trip flights from San Antonio (SAT) to San Francisco (SFO) for $110, with a connection. $53-$57 each-way. Flights March to May. A good amount of Friday and Saturday departures. Origin/Destination reversible.
Note: Southwest doesn’t charge bag fees, change fees, or cancellation fees. If you’ve already purchased a Southwest ticket, and the fare drops, you can call them to have the difference refunded to you in the form of a travel voucher.
Note: You can save an additional $100 if you purchase your Flight+Hotel together as a package on Southwest Vacations and use the ANYUSA coupon-code.
Click for more details and booking links Cheap Flights: San Antonio to/from San Francisco $110 r/t – Southwest