Delta Flight 2311 Makes Emergency Descent, Diverts to Las Vegas After Cabin Pressurization Issue

LAS VEGAS, NEVADA — Delta Air Lines Flight 2311 safely diverted to Harry Reid International Airport in Las Vegas after experiencing an unexpected cabin pressurization problem that prompted an emergency descent during its scheduled journey from Los Angeles to Salt Lake City.

The incident occurred on Sunday, September 6, 2026, when the Boeing 737-900, carrying 174 passengers and six crew members, suffered a pressurization issue while cruising at approximately 36,000 feet. In accordance with established emergency procedures, the flight crew initiated a rapid descent to a safer altitude, and passenger oxygen masks were automatically deployed.

Air traffic control recordings captured the pilots advising controllers that the aircraft was making a rapid descent and requesting clearance to descend to 9,000 feet before diverting to Las Vegas. The aircraft landed safely at Harry Reid International Airport at approximately 6:16 p.m. local time without further incident. All passengers and crew deplaned normally, and no serious injuries were reported.

In a statement following the incident, Delta Air Lines said the flight crew followed established training and safety procedures after the unexpected pressurization problem occurred. The airline emphasized that the safety of passengers and crew remains its highest priority and arranged alternative travel for those affected by the diversion.

A loss of cabin pressure is a rare but well-understood aviation emergency that requires pilots to descend quickly to an altitude where passengers can breathe safely without supplemental oxygen. The deployment of oxygen masks and an emergency descent are standard precautionary measures designed to protect everyone on board.

The Federal Aviation Administration is expected to review the incident as part of its routine oversight of in-flight emergencies. Meanwhile, Delta is working to determine the cause of the pressurization issue that led to the precautionary diversion.

The successful landing and orderly response underscore the effectiveness of airline safety protocols and the professionalism of the flight crew in managing an unexpected in-flight emergency.