Share this: Facebook Twitter LinkedIn SFMTA.com/13043 31 to Ocean Beach 4, 34 min 31 Balboa arrives in 4 minutes. Predictions valid as of 1:46:23 PM 3/18/2025 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 4, 34 min 31AX Balboa A Express (Suspended) Live Map