A United Airlines plane skidded off the runway at about noon Saturday at O’Hare International due to slick conditions as a snowstorm moved through the Chicago area, the airline said.

Flight No. 656 from Phoenix to Chicago offed the solid surface. None of the 129 people on the flight were injured, as indicated by the Chicago Fire Department.

“It was a little unsettling when I looked over and we were in the grass,” said passenger Lydia McAfee

The travelers were escorted off the plane and after that bused to the terminal.

There was no word on the status of their flight.

Somewhere between of 4 and 9 inches of snow fell Friday night into Saturday morning in the Chicago area.