How long is the notice to cancel the flight due to the weather?

The airline will make a decision to cancel the flight at least one day in advance, and the cancellation for temporary reasons will not exceed one day. It will inform passengers before they leave for the airport, usually three or four hours in advance.

According to the situation, if the flight changes, it will be notified in advance, but if the flight standard is not enough, it will usually be notified at the last minute.

Airlines cancel or delay flights, resulting in failure to provide passengers with suitable seats (including class of cabin), or failure to stop at passengers' stopovers or destinations, or the flight connection of passengers' reserved seats is missed. Airlines will consider the reasonable needs of passengers and take one of the following measures:

Arrange follow-up flights with seats for passengers. After obtaining the consent of the passengers and the relevant carriers, go through the formalities of signing and transferring. Change the voyage listed in the original air ticket, arrange the flights of this airline or other carriers to transport passengers to their destinations or split the itinerary halfway.

Involuntary refund according to regulations. Airlines will take all necessary measures to avoid delays in passengers and passengers' luggage. If the airline has taken all necessary measures or it is impossible to take these measures, the airline will not be responsible.