From San Francisco bus to Merced. 3 h 36 min $34. From Civic Center/UN Plaza BART to Richmond Transit Station Amtrak then train to Merced Amtrak. 4 h 22 min $54. From Civic Center/UN Plaza BART to Iron Horse Pkway, bus to Turlock Transpo, then bus to Merced Transpo. 6 h 3 min. From San Francisco drive to Merced. 2 h 16 min $15.