Photo: Cyrus Shepherd-Oppenheim in a Facebook image.
Shepherd-Oppenheim was identified as the man who allegedly stole cash, a digital camera, a leather make-up case and a small travel bag from two passengers' carry-on luggage.
He was arrested in Philadelphia on Tuesday around midnight after the United Airlines plane arrived from San Francisco, police say.
Shepherd-Oppenheim has been charged with theft and receiving stolen property.
Photo: Cybill Shepherd in 1998.
He is the son of "Moonlighting" star Cybill Shepherd and chiropractor Bruce Oppenheim, who divorced in 1989.
It was not immediately clear if he had a lawyer.