Air traffic control facilities across multiple U.S. cities are facing severe staffing shortages, leading to widespread flight delays and cancellations. Denver, Phoenix, Newark, and Burbank airports have been particularly affected, with some facilities operating at reduced capacity.

Burbank Airport experienced a critical breakdown Monday when its tower closed from 4:15 p.m. to 10 p.m. PDT due to a lack of air traffic controllers. Flights were delayed by an average of 2.5 hours, while controllers from San Diego managed incoming and outgoing traffic. A recorded message from a controller instructed pilots to contact “SoCal” for clearance, highlighting the operational challenges.

The Federal Aviation Administration (FAA) confirmed multiple facilities, including Philadelphia TRACON, Denver Center, Detroit TRACON, Indianapolis Center, Phoenix Airport, and the Phoenix TRACON, faced staffing advisories. Over 600 flights were delayed at Denver Airport alone, with more than 200 affected at Phoenix. The FAA acknowledged the systemic strain, stating that traffic into certain airports was slowed to ensure safety amid shortages.

Transportation Secretary Sean Duffy criticized the situation, citing increased absenteeism among controllers and the need for back pay once the government shutdown ends. NATCA, the union representing air traffic controllers, emphasized the fragility of the aviation system, urging accelerated hiring and training to address the shortage. The National Air Traffic Controllers Association noted that controllers are working extended hours, with some considering second jobs to manage financial pressures.

As of Tuesday morning, over 600 domestic flights remained delayed, according to flight tracking data. The crisis has exposed vulnerabilities in the nation’s air traffic infrastructure, with officials warning of escalating challenges without immediate intervention.