PSA is adding a number of round-trip flights.

The San Diego-based airline said it will offer 26 daily round trips between Los Angeles and San Francisco beginning June 12. It currently offers 17 round trips daily. The new schedule calls for flights every hour on the half-hour between 6:30 a.m. and 10 a.m. and between 3 p.m. and 8 p.m. PSA said it will continue to offer flights ever hour during the remainder of the day. PSA also will increase its daily flights between Los Angeles and Las Vegas to 10 a day from seven next month.