For day trips to the likes of Todos Santos and La Paz, there are two bus companies, ABC and Aguila, in operation. Both companies also run a service between San Jose del Cabo and Cabo San Lucas.

The latter route will be Saturday-only. To Cabo San Lucas, Southwest will convert AirTran's service into its own on the route out of Orange County, Calif. Also on Aug. 10, Southwest will add a ...