Why didn't the Spring Airlines plane from Urumqi to Shenyang take off?

1. If the airline is cancelled, the cancellation time will be too long due to weather and flow control.

2. There are also reasons for airlines. Because of mechanical reasons or few passengers, considering the cost, cancel the flight.

Spring Airlines cancelled flights frequently recently, mainly because of the epidemic. In order to stop the spread of the epidemic and respond to the call of the country, Spring Airlines had to cancel its aviation.