For most of the past decade, Delta Air Lines has been the unquestioned leader in the commercial aviation industry. The carrier has been the first to innovate in key areas, has drastically reshaped the definition of a successful airline loyalty program through its valuable partnership with American Express,

A Delta Air Lines flight last week was canceled after the flight crew mistakenly deployed an emergency slide before boarding.

The planes, carrying more than 350 people, experienced "a loss of required separation" while preparing to land at the same Phoenix airport, the FAA said.

However, while Delta Air Lines confirmed the development, United Airlines reiterated that its flights to Tel Aviv remain suspended.