A passenger airplane is landing on Newark Liberty International Airport in Newark, New Jersey, on January 19, 2022.A United Airlines passenger airplane is landing on Newark Liberty International Airport in Newark, New Jersey, on January 19, 2022.

United Airlines will reduce flights from Newark Liberty International Airport in an effort to reduce delays that have disrupted travelers' plans this year.

The cuts affect about 12% of United's schedule in its New Jersey hub.

The delays are the result of capacity constraints, airport construction and air traffic control, according to United executives.

The US airline industry has had a higher rate of flight delays and canceled flights this year. Staffing shortages at some airlines have hampered a surge in air travel this year due to regular issues such as storms. There is a shortage of pilots and airlines have reduced flights and destinations.

Over the July 4 holiday and the rest of the summer, Pete Buttigieg urged airline CEOs to make sure they don't have any more disruptions.

"After the last few weeks of irregular operations in Newark, caused by many factors including airport construction, we reached out to the FAA and received a waiver allowing us to temporarily adjust our schedule there for the remainder of the summer."

United will reduce the number of flights it operates to certain markets.

Even though we have the planes, pilots, crews, and staff to support our Newark schedule, this Waiver will allow us to remove about 50 daily departures which should help minimize excessive delays and improve on-time performance.

In the first half of the year, 31% of flights at Newark were delayed, the second-worst rate in the country.

Several airlines have trimmed their schedules this year.