Serial Stowaway Woman Grounded at Chicago Airport

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Chicago - Look... Up in the sky.... Is it a bird? Is it a plane?

Nope, it's the "Serial Stowaway!"

Sixty-four-year-old Marilyn Hartman was arrested for violating her probation after being spotted at Chicago O'Hare International Airport.

Hey, she may look like an innocent grandma, but this lady has been busted for hopping free flights for years, from San Francisco to Arizona to Florida and more.

She won't reveal how she does it, but she must be pretty good at it.

Because of her history of attempting to board planes without a ticket, she isn't allowed to even step onto airport property. "As soon as she's given freedom of movement, she goes back," a prosecutor said. "Her history is, once she's released, she goes back."

This time, Hartman has been charged with a felony so she's really in hot water.

Her public defender says it's hard dealing with cases like Hartman's because "they're mentally ill and in custody, and there needs to be more alternatives."

With a bond set at $150,000, perhaps Hartman's free flying days have been grounded for good.