Overview
- A pressurization failure on Delta Flight 2311 forced an automatic deployment of oxygen masks and a rapid emergency descent to about 9,000 feet, the airline and cockpit audio recordings show.
- The crew declared an emergency and diverted the Boeing 737‑900ER to Harry Reid International Airport in Las Vegas where the plane landed safely and passengers deplaned normally.
- Delta confirmed the flight carried 174 passengers and six crew members and arranged another aircraft so travelers could continue to Salt Lake City after the diversion.
- Passengers described distress, sudden ear pain and a traumatic experience in social posts, while pilot‑ATC audio recorded the crew’s call to descend and their confirmation that oxygen had deployed.
- Reports say the same aircraft stayed in Las Vegas for what was described as a likely minor valve or software fix and later completed the LAX–SLC leg, but formal technical findings and regulatory investigations have not yet been released.