Share this: Facebook Twitter LinkedIn SFMTA.com/13573 Prediction Unavailable min Arriving Prediction Unavailable Stop closed — no service Predictions valid as of Predictions unavailable for any route as of Route & Arrival Details 18 46th Avenue 6 a.m. to 10 p.m. daily 31 Balboa 5 a.m. to 10 p.m. daily 31AX Balboa A Express Live Map