AC Transit operates a bus from San Francisco to El Sobrante every 2 hours. Tickets cost $3 and the journey takes 1 h 2 min.
How to get from San Francisco to El Sobrante
From Transbay Temp Terminal bus to Park Central:Hilltop Dr. 1 h 2 min $2. From Civic Center/UN Plaza BART to El Cerrito Del Norte BART, bus to Richmond Parkway Transit Center, then line 16 bus to Fitzgerald Dr - Best Buy. 1 h 21 min $8. From San Francisco taxi to El Sobrante. 26 min $140. From San Francisco drive to El Sobrante. 26 min $2. From San Francisco Uber to El Sobrante. 26 min $40.