It's part of a new "Wingmate" program.
It could be especially convenient for parents, who want to stay with their children before they take off, or if friends want to surprise someone who just arrived.
You do have to apply before you can use a Wingmate pass.
"Whether you're supporting family in their journey to their gate or planning a heartwarming surprise for a friend arriving on a domestic flight, a Wingmate Pass will get you there," the airport wrote on its website.
Find out more at PHL.org/Wingmate.