Frontier Airlines employee stabbed to death by coworker on tarmac at Philadelphia airport, police say Posted by : AdminThursday, May 3, 2018 Add Comment Frontier Airlines employee stabbed to death by coworker on tarmac at Philadelphia airport, police say Fox News A Frontier Airlines worker fatally stabbed a coworker at Philadelphia International Airport Business Insider Frontier Airlines employee fatally stabbed inside Philadelphia International Airport terminal New York Daily NewsFull coverage