The next day, Hartman managed to get past British Airways ticket agents and onto a plane, prosecutors said. She made it to Los Angeles that same year after trying several times to board a plane in San Jose.
Guglielmi says Hartman this week got through a federal Transportation Security Administration checkpoint at a domestic terminal without a ticket before taking a shuttle to the worldwide terminal. She was also banned from possessing firearms and is not allowed near O'Hare, per the judge's orders.
She was charged with one misdemeanor count of criminal trespassing and one felony count of theft greater than $500, in connection with the cost of the plane ticket that she did not possess.
Hartman spent a year in Cook County Jail after repeated episodes of attempting to board aircraft at O'Hare and Midway airports. She was then sent back to O'Hare and arrested by U.S. law enforcement officials.
She was detained at Heathrow Airport after her arrival on 15 January and sent back to Chicago, where she arrived on 18 January, Chicago Police said.
Chicago Department of Aviation spokesperson said no passengers were endangered during the incident. A TSA spokesman said in a statement Friday they were looking into the matter as to how Hartman was able to walk past the security.
This is at least the tenth time that Hartmann has tried her luck.
"We are working with our law enforcement partners to support a comprehensive and thorough investigation, while continuing to maintain the highest levels of security at O'Hare Airport", Huffman said in a statement. She was scheduled to appear in bond court on Saturday.
While, in 2016 she was placed on mental health probation for two years.
"And it's not as if she is, 'Catch me if you can.' It's nearly like, 'Just come catch me, ' " Assistant State's Attorney Jeff Allen told reporters during the hearing.
Hartman has long struggled with homelessness and mental health and has had encounters with authorities at airports across the United States.
She also told police that she felt safer inside the airports than living on the streets.