Share this: Facebook Twitter LinkedIn SFMTA.com/16780 45 to Caltrain Depot 4, 16 min 45 Union/Stockton arrives in 4 minutes. Predictions valid as of 1:54:15 PM 4/23/2025 min Arriving Prediction Unavailable Stop closed — no service Predictions valid as of Predictions unavailable for any route as of Route & Arrival Details 41 Union 45 Union/Stockton 5 a.m. - 10 p.m. daily Destination Predicted Arrivals Caltrain Depot 4, 16 min Live Map