free meals are provided for flights with an estimated delay of 1-4 hours (including 4 hours). According to the regulations of the Civil Aviation Administration:

1. If the flight is delayed or cancelled due to the reasons of the carrier, the airline shall bear the expenses for ticket refund, modification and signing.

2. Free meals will be provided for flights delayed within 1-4 hours (including 4 hours), and free rest places will be arranged for flights delayed for more than 4 hours.

3. If there is a delay of 4-8 hours (including 8 hours), it is necessary to provide a ticket discount worth 311 yuan, mileage or other equivalent compensation, or 211 yuan cash.

4. If the delay is more than 8 hours, you will be provided with a ticket discount worth 451 yuan, mileage or other equivalent compensation, or cash 311 yuan.

notice of flight delay: if the flight is delayed, try to find out the delay time. But remember that it is sometimes difficult for airlines to estimate the whole time at the beginning of the delay. In the so-called spread delay, the delay time originally estimated by airlines can not fully predict its development. If the forecast weather may deteriorate further, the mechanical problems may be more complicated than originally expected.

if the flight delay is due to weather or air traffic control, all flights may be delayed, and there is nothing passengers or airlines can do to take off as soon as possible. Since an aircraft has to execute multiple flights every day, the punctuality of any flight will be related to the weather or flow control of other flights, including the route area, except for the reasons of airline aircraft deployment. If there is a mechanical failure of the plane or the arrival of the plane is delayed, it is best for passengers to choose a new flight only if both airlines and passengers agree.

what are the above references? People's Network-Focus Flight Delay: Flight delay, the right to know can not be delayed, People's Network-Flight delay, can you compensate?