So far 116 flights had been delayed and 121 flights in and out of Xinzheng airport in Zhengzhou had been cancelled as the blizzard led to the airport's closure, state-run Xinhua news agency reported.
The airport is expected to reopen at 10 pm, Xinzheng Airport said.
Local meteorological authorities have issued a red alert, the highest of a four-tier warning system for severe weather, for the blizzard.
Rain and snow started to fall across most of Henan Province last night and several cities, including Zhengzhou and Luoyang, reported heavy snow.