The Keystone Service is a 195 mile (314 km) regional passenger train service from Amtrak, that operates between the Harrisburg Transportation Center in Harrisburg, Pennsylvania, and 30th Street Station in Philadelphia, running along the Philadelphia to Harrisburg Main Line (known as the Keystone Corridor). Most trains then continue along the Northeast Corridor (NEC) to Penn Station in New York City.
Trips between Harrisburg and New York take approximately 3+1⁄2 hours, including 1+3⁄4 hours between Harrisburg and Philadelphia. There are also several express services that can cut the journey times of both by approximately 15 minutes.