There are reports that a turbulence left at least 26 injured and 4 seriously.
Chinese media reported over 20 people injured on a China Eastern flight.
Passengers suffered bone fractures, scalp lacerations and soft tissue injuries caused by falling baggage or collisions with overhead lockers, it cited local hospitals as saying.
One witness told the Xinhua news agency: "We felt strong turbulence twice and minor turbulence three times".More news: UK: Banned building materials suspected in London fire
The injured are being treated in two hospitals in Kunming, capital of southwest China's Yunnan Province after the plane landed safely at 8:50 am today, state-run Xinhua news agency reported. The turnout at 1500 GMT on Sunday was at its lowest for the second round of parliamentary elections at the same time of day since at least 1997, according to historical data given on the Interior Ministry.
No passengers or crew were injured. "We were lucky the plane did not crash".
According to the reports, the nearly two dozen people were injured when Flight MU774, from Paris to Kunming, experienced severe turbulence.
The plane landed safely an hour later and those who needed medical help were taken to hospital, Xinhua said.
On June 11, a China Eastern Airlines flight MU736 bound for Shanghai, had to make an emergency landing and return to Sydney after a hole emerged in one of the aircraft's engines.