Be sure to check in half an hour before the plane takes off. Therefore, it is best to arrive at the airport in advance according to the situation, especially when there are many people during the Golden Week and Spring Festival. Some airports are very strict. If it is time, they won't do it, such as Beijing airport.
It is best to check the fruit knife in the luggage, otherwise 90% may be confiscated. In addition, small animals can't be brought on the plane, and they can only be checked with quarantine certificates, which is very troublesome. Potted plants and flowers are ok.
When checking luggage, some airports will charge an insurance premium of around 10 yuan, such as Fuzhou Airport; If your suitcase is unlocked, some airports will force you to spend 5 yuan to buy a small lock, such as Guangzhou airport.