By the end of this year, United Airlines will retire its final 747-700 about one year earlier than expected.
The airline announced on Wednesday that itwill stop using the plane because its no longer cost effective.
Since the 747 premiered in 1970, Boeing has delivered more than 1,500 of the planes to airlines. But over the past few years, demand for the jumbo jet has decreased. Last year, Boeing warned that it may stop production on the 747.
Airline officials told employees that the plane is no longer competitive. It requires more maintenance than other aircraft in the fleet and customers are less satisfied with their experience onboard
Delta is the only other American airline with a 747-400 fleet. They will also retire their planes later this year.