How long does it usually take to change the visa?

Legal analysis: if it conforms to the change process, it is generally immediate. However, you need to make up the corresponding ticket price difference or handling fee. Some airlines also have corresponding regulations for changed flights that have not taken off and have already taken off.

Legal basis: Civil Aviation Law of People's Republic of China (PRC).

Article 2 People's Republic of China (PRC)'s territory and maritime airspace are People's Republic of China (PRC)'s airspace. People's Republic of China (PRC) enjoys complete and exclusive sovereignty over its airspace.

Article 3 The competent civil aviation authorities in the State Council shall exercise unified supervision and administration over civil aviation activities throughout the country; According to the law and the decision of the State Council, the regulations and decisions related to civil aviation activities are issued within the authority of this department.

The Regional Civil Aviation Administration established by the competent civil aviation authority in the State Council shall, under the authorization of the competent civil aviation authority in the State Council, supervise and manage the civil aviation activities in various regions.