Why was the plane from Beijing to Changchun cancelled on September 8?

The weather in the capital airport is bad, and there are too many flights at the airport, so the plane in front can't land. An airplane is an airplane that is heavier than air. It has a power plant, one or more engines generate forward thrust or pull, and the fuselage has fixed wings to generate lift, flying in the upper, middle and lower atmosphere. The reason for the cancellation of the plane from Beijing to Changchun on September 8 was that the weather at the Capital Airport was bad and there were too many flights at the airport, so the plane in front could not land.