From New York City to Philadelphia
US Bus Station.com, Your Local Bus and Coach Route Database

Departs are usually from NYC:
 New York Penn Station
 New York 34th and 8th by Tick Tock (Phil. or Bos.)
 New York 6th Between Grand & Watts (To DC or Phil)
 88 E. Broadway
 28 Allen St/86 Allen St.
To Philadephia:
 55 N 11th St Philadelphia
 1015 Arch St.
 55-57 N 11th St.
 30th Street Station
 Chinatown, Philadelphia
 Philadelphia – Cherry Hill Mall
 Philadelphia 30th between Market & Chestnut

Most of buses are express and have wi-fi on board!
Departs are every hour from 6.00am to 11.00pm.
It is advisable to arrive at least 15 minutes before departing.
Average Cost: From 10$ to 25$ one way
Average Duration: Between 2hours and 3hours