Philadelphia police say 55-year-old Joseph Pereira of Wexford is awaiting a bail hearing on invasion of privacy and harassment charges.
US Airways spokesman Morgan Durrant says Pereira has been suspended pending an investigation.
Police say a witness reported that took a photograph up a girl's skirt at an airport newsstand last week.
A district spokeswoman says Pereira resigned as a girls softball coach at North Allegheny High School, near Pittsburgh. District spokeswoman Joy Ed says there have been no other complaints about Pereira in 13 years of coaching.
It was not immediately clear if he has a lawyer.
