Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at Feb 23rd. As of Feb 20th, it's showing the cheapest ticket sales at $930. That is 1% below the average price for this route, so you can spend that extra cash on an adventure rather than the flight.
Question : Is the price you found a good deal?
Answer : Prices for this trip tend to change much less than other flights from the United States. They can range from $930 to $953. However, the sooner you book, the better price you tend to get.
Question : How long do most people stay in Zhengzhou?
Answer : Of course you're not most people, but if you were, you'd stay roughly 76 days.