Frontier flight headed to O'Hare Airport diverted due to passenger disturbance

A Frontier Airlines flight from San Juan to Chicago’s O’Hare International Airport was diverted to Miami due to a passenger disturbance, landing safely without injuries. The same day, a United flight from O’Hare to Minneapolis was diverted to Wisconsin after an unruly passenger attempted to breach the cockpit. The FAA reported over 640 such incidents in 2026 and enforces penalties up to $43,658 per violation.