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.

Flights at the New Jersey airport have been canceled and delayed in recent weeks amid communications problems plaguing air traffic control systems and ongoing construction.

According to the New York Post, a blackout on April 28 for air traffic controllers overseeing Newark led to many workers taking trauma leave, exacerbating its staff shortage. In addition, a Newark Airport runway is closed for “rehabilitation work” leaving the airport with only one functioning runway.

The FAA has imposed new limits on one of America's busiest airports, hourly capping operations as travelers face continuing delay

The interim rule will cap the number of arrivals and departures at Newark Liberty International Airport at 28 apiece per hour. That’s in line with the limits imposed after about half a dozen controllers went on a 45-day trauma leave following the first outage on April 28.

The temporary restrictions are being imposed after repeated flight delays and cancellations. The cap will increase to 68 flights per hour in mid-June.

Live" was the latest program to take aim at Newark Airport's delays during a sketch in its May 17 season finale.

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 interim rule will cap the number of arrivals and departures at Newark Liberty International Airport at 28 apiece per hour. That’s in line with the limits imposed after about half a dozen controllers went on a 45-day trauma leave following the first outage on April 28.

Construction on one of Newark Airport's busiest runways has been ongoing since mid-April — but, there is an end in sight.