Twenty passengers have sued Delta Air Lines in Utah, alleging the carrier ignored repeated weather warnings before a violent turbulence event aboard Flight 56 from Salt Lake City to Amsterdam last year.
The lawsuit claims the airline failed to divert the aircraft despite forecasts of dangerous convective weather and kept the seatbelt sign off while cabin service continued, exposing passengers and crew to serious injuries.
According to the Aviation Law Group, the complaint was filed on Friday in the Third Judicial District Court for Salt Lake County.
It alleges that Delta Flight 56 encountered extreme turbulence less than an hour after departing Salt Lake City on July 30, 2025, and later diverted to Minneapolis-St. Paul International Airport after the incident.
Plaintiffs alleged that many suffered head injuries, broken bones, spinal trauma, concussions and lasting psychological distress.
They have sought damages under the Montreal Convention, which governs liability for injuries on international flights.
