Under what circumstances will the flight be cancelled?

The delay caused by mechanical failure can be solved by human efforts, so the delay time will not be long. The long-term delay or even cancellation of most flights is caused by irresistible weather. Severe conditions such as lightning, typhoon, tornado, low cloud, low visibility (fog, sandstorm, floating dust) and road icing over the take-off airport and air route will directly threaten the aircraft structure, communication equipment and aircraft take-off and landing.

Especially in Chengdu and Chongqing, there are many thunderstorms in summer and heavy fog in winter. Chengdu Shuangliu Airport has a horizontal visibility of 800 meters and a cloud height of 100 meters. Below these standards, no flight can take off or land. If you manage to fly, you will be in danger. This is how 70% of aviation accidents in the world happen.

Precautions for canceling flights

Passengers who meet the above scope of application can apply for a change of ticket before the departure of the original ticket flight, and can change it once for free. Flights before (including) the same flight will not be refunded or replenished. Passengers who apply for a change of ticket outside the above scope or apply for a change of ticket again will be handled according to the use of the ticket, and the corresponding fees will be charged. ?

Passengers who meet the above scope of application can cancel their seat reservation before the flight takes off, and can apply for a free refund at the original ticket issuing place within the validity period of the ticket, without charging a refund fee; If the seat ticket is not cancelled before the flight takes off, the refund fee will be charged according to the original ticket use conditions. Tickets that have been voluntarily refunded or changed will not be refunded.

Refer to the above? People's Daily Online-Chengdu Shuangliu Airport cancelled 234 flights due to thunderstorm, the largest area this year.