Share this: Facebook Twitter LinkedIn SFMTA.com/16730 31 to Ocean Beach 12, 34 min Predictions valid as of 5:48:42 PM 3/29/2025 min Arriving Prediction Unavailable Stop closed — no service Predictions valid as of Predictions unavailable for any route as of Route & Arrival Details 31 Balboa 5 a.m. to 10 p.m. daily Destination Predicted Arrivals Ocean Beach 12, 34 min 31BX Balboa B Express (Suspended) Live Map