Authorities say he used one of his father's credit cards to buy a ticket to San Jose, near where his mother lives. The boy carried no identification with him.
Weaver was found at a ticket counter at the San Jose Airport and taken to his uncle's house.
His parents say the teen has /*Asperger's syndrome*/ and has a fascination with planes.
His father, Dan Weaver, says he's stunned as to how his son managed to pull it off.
"I don't think he has any ID, so I'm confused as to how he got onto the plane," said Dan Weaver. "It's very difficult to get on a plane these days, and somehow he managed to get a ticket, get through security, get on a plane. And then I understand that it was not a direct flight. So he had to get off a plane, get back on another plane, all without anybody, you know, raising a question."
Airport and transportation officials say minors only need a boarding pass, and not an ID, to get on a plane.
Two days prior to the incident, Kenton made at least two unsuccessful attempts to leave home, but both times he was returned to his dad. There's no word on whether he will be returned to Florida.
The Associated Press contributed to this story.
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