Share this: Facebook Twitter LinkedIn SFMTA.com/16731 Prediction Unavailable min Arriving Prediction Unavailable Stop closed — no service Predictions valid as of Predictions unavailable for any route as of Heavy downtown traffic. Expect Muni delays to & from the area. Route & Arrival Details 31 Balboa 5 a.m. to 10 p.m. daily Destination Predicted Arrivals Ocean Beach Prediction Unavailable 31BX Balboa B Express Live Map