Originally Posted by
magicrat
There is a "cargo city" bus that runs from the cargo area to the terminal. Walk out of the FDX door to the end of the parking lot and bang a right. The bus stops in front of the truck lot. Can't miss it. It will drop you off at departures. Walk into the terminal and cross the skywalk to arrivals. You will see a Septa station at terminal C and A (?). Take that to 30th street station.
Just a slight correction (as I'm based in PHL and see people make this mistake all the time). When you're crossing the bridge from Departures to Arrivals, only go halfway across, then down the escalator to the train platform. Don't go all the way to baggage claim.