Share this: Facebook Twitter LinkedIn SFMTA.com/14473 31 to Caltrain 0, 17 min 31 Balboa Caltrain is arriving. Predictions valid as of 7:10:33 PM 5/29/2025 min Arriving Prediction Unavailable Stop closed — no service Predictions valid as of Predictions unavailable for any route as of 31 STOP TEMP. MOVED Board on other side of Buchanan Route & Arrival Details 31 Balboa 5 a.m. to 10 p.m. daily Destination Predicted Arrivals Caltrain Arriving, 17 min Downtown Prediction Unavailable Live Map