Operations at United Airline's massive hub at Newark Liberty International airport have stabilised following a sharp reduction in daily air traffic mandated by the Federal Aviation Administration.

Newark Airport is expecting a busy Memorial Day Weekend as usual, but officials do not expect any significant delays.

Newark Liberty International Airport is one of the largest hubs of United Airlines, and the congested airport is also the Chicago-based carrier's biggest operational challenge. The company told 1.5 million customers in a note on Thursday that congestion at Newark has eased since it reduced flights there.

Transportation Secretary Sean Duffy plans to reduce the number of flights in and out of the Newark Liberty International Airport for the “next several weeks.”

Newark Liberty International Airport will see a reduction in flights as the Federal Aviation Administration works to upgrade the technology at the airport and address safety concerns, U.S. Transportation Secretary Sean Duffy announced on May 12.