Share this: Facebook Twitter LinkedIn SFMTA.com/15709 43 to Fort Mason 7, 8 min Predictions valid as of 3:38:30 PM 6/12/2025 min Arriving Prediction Unavailable Stop closed — no service Predictions valid as of Predictions unavailable for any route as of Route & Arrival Details 31BX Balboa B Express 43 Masonic 5 a.m. - 12 a.m. daily Destination Predicted Arrivals Fort Mason 7, 8 min Live Map