How long can I compensate for the flight weather delay?

Legal analysis: as long as it is the airline's own reasons, including mechanical failure, insufficient airline capacity, aircrew reasons, etc. Airlines can't be exempted. Usually, if the flight is delayed for more than 4 hours, the airline should compensate the passengers. However, according to the relevant regulations, airlines do not need to compensate for flight delays caused by force majeure factors such as bad weather or air traffic control. Just arrange accommodation, catering and transportation.

Legal basis: According to the provisions of the Guiding Opinions of the Civil Aviation Administration of China on Economic Compensation for Passengers Due to Flight Delay (Trial), if an airline causes flight delay due to its own reasons, it should not only do a good job in the case of abnormal flight according to the relevant provisions of the China Civil Aviation Passenger and Luggage Domestic Transportation Rules, but also consider the flight delay of more than 4 hours (inclusive) but not more than 8 hours (inclusive). Economic compensation can take many forms. Airlines should respect the wishes and choices of passengers through cash, ticket discounts and mileage. The specific compensation methods and schemes are formulated by airlines according to their own conditions under this framework.