Share this: Facebook Twitter LinkedIn SFMTA.com/15508 91 to West Portal Station 10, 40, 66 min Predictions valid as of 7:28:42 AM 4/6/2025 min Arriving Prediction Unavailable Stop closed — no service Predictions valid as of Predictions unavailable for any route as of Route & Arrival Details 91 3rd Street/19th Avenue Owl 12 a.m. - 5 a.m. nightly Destination Predicted Arrivals West Portal Station 10, 40, 66 min Live Map