Moving air traffic controllers means retraining them on the quirks of a new facility, and the process can take years.

United Airlines slashes 35 Newark flights daily due to FAA staffing shortages and tech failures as travel disruptions mount.

The airport, which serves as a critical transportation hub for the New York metropolitan area, has seen more than 1,400 flights delayed or canceled during the seven-day crisis. On the worst days, over 40% of flights were delayed and 20% canceled entirely, creating ripple effects throughout the U.S. air transportation network.