Flight 4332 from New Orleans was taxiing to the gate when its nose gear got off the tarmac pavement and onto the grass.
"We landed, and then as we were almost stopping, I guess all the rain and wind, we skidded off to the grass. But everybody was fine," David Behm, passenger, said.
Christina Clock was on another plane when she saw Flight 4332 off the tarmac.
"It was a little bit surprising," Christina Clock said. "I don't usually see things like that when I'm taxiing in from a flight. . . It caught everyone's attention."
Runway 27Left was closed while the passengers were moved by bus.
American Airlines released a statement, "American Eagle Flight 4332 from New Orleans to Chicago, operated by Republic Airlines, landed normally and safely this morning at Chicago O'Hare International Airport. While taxiing to the terminal at O'Hare, the aircraft exited the taxiway and the nose gear of the plane ended up in the grass. The aircraft is an Embraer E175 with 38 passengers and a crew of four. No injuries were reported. Passengers are being bused to the terminal."