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.

The FAA said it is reducing flight operations at Newark Airport due to equipment outages, staffing shortages and runway construction in order to alleviate delays and congestion.

At one point, the FAA had targeted 77 total arrivals and departures at Newark each hour, but at the start of construction on April 15 they requested airlines cut that down to 70 total during the day and 62 during specific hours in the late afternoons and evenings.