CBS news reported that Chicago Police spokesman Anthony Guglielmi said Hartman managed to make her way through a federal Transportation Security Administration checkpoint at a domestic terminal without a ticket.
She then boarded a flight to the United Kingdom and was detained by British Customs Officials at Heathrow International Airport in London on January 15, police said. NBC 5's Phil Rogers reports. She has been jailed and mentally evaluated and at one point insisted she would not cause trouble again. Personnel assumed she was confused. In a hearing Saturday afternoon, a judge ordered her released on her own recognizance, but ordered her to undergo psychological treatment and stay away from O'Hare and any British Airways planes. It is believed she managed to get onto a British Airways flight with some kind of large group.
Hartman, 66, made it overseas before authorities realized she had taken the flight without a passport or ticket. She had no passport, and on arrival in London she was detained.More news: Russian money laundering probed at Trump's Doonbeg golf course
She was busted for the stunt at least eight times in 2014.
The Chicago Department of Aviation released a statement, advising that no passengers had been put at risk by the episode.
Hartman had reportedly wandered around Chicago O'Hare for two days without being questioned.More news: The Cranberries' Dolores O'Riordan Dead At 46 (Week in Review)
The Transportation Security Administration is investigating how Hartman was able to get through security, a spokesman said in a statement Friday.
Hartman has been arrested several times on charges she attempted to or successfully boarded flights, with the most recent instance in 2016. "During the initial investigation it was determined that the passenger was screened at the security checkpoint before boarding a flight. Upon learning of the incident TSA, and its aviation partners took immediate action to review security practices throughout the airport". During various stages of her confinement she has been treated for psychiatric issues.
According to CBS, Hartman has said that she likes being at airports because they make her feel safe. She recently left that facility. She is next expected in court January 25.More news: Daniel Cormier Breaks Down His UFC 220 Title Fight Against Volkan Oezdemir