15th Street station is a subway station on the SEPTA Market–Frankford Line and all routes of the Subway–Surface trolley lines in Philadelphia, Pennsylvania. A free interchange is available between all of the rapid transit lines here, including the Broad Street Line at City Hall, which is connected to 15th Street by an underground passage. It is the busiest station on the Market-Frankford Line, with 29,905 boardings on an average weekday.
The station is attached by underground pedestrian walkways to SEPTA Regional Rail's Suburban Station, the Broad Street Line's Walnut–Locust Station, the PATCO Speedline's 12–13th & Locust and 15–16th & Locust Stations; as well as the Market–Frankford Line's own 13th Street, 11th Street, and 8th Street Stations. However, no free interchange is available to any of these stations.
Riders to the station will find themselves in the very heart of Center City. City Hall lies across the street from the station, and such attractions as Love Park, the Penn Center area, and the Comcast Center are within immediate walking distance.