How long does it usually take to cancel a flight?

The time of flight cancellation notice will vary according to the specific situation. Passengers need to be informed one week in advance of normal flight cancellation, but special circumstances, such as aircraft failure, depend on the situation. Generally speaking, passengers need to be notified 24 to 72 hours in advance of the cancellation of international flights, and passengers are generally notified several hours to one day in advance of domestic flights. Before traveling, it is recommended to check the flight dynamics in time and keep the contact information with airlines updated so as to receive relevant notices in time.