"We continue to urge the FAA to address ongoing staffing shortages," a Port Authority spokesperson told Newsweek.

The Federal Aviation Administration said staffing issues, low clouds and construction were hindering traffic at the airport, resulting in average delays of about four hours for some arrivals. Officials recommended travelers check with their airlines to see if their flights were affected.

United Airlines says its forced to cancel 35 daily flights from Newark due to staffing and technology issues at the airport, a major hub.