More than 146,368 square miles, or an area equivalent to the size of Montana, had been searched, the Coast Guard said.
The boy was bitten on the head and is in serious but stable condition. An official said his father saved his life by scaring the mountain lion away.
Passengers on the LAX-bound flight described their 18-hour wait in the terminal as 'hell.'
The suspect, 26-year-old Timothy H. Miller, told police he picked up the child because he thought he could buy drugs from him, according to an affidavit.
The National Association of Hispanic Journalists said it rescinded the network's invitation to its conference due to failed conversations over its news coverage.