How early do group tickets for group tours usually leave?

There is no specific time definition for this. Generally speaking, this group ticket at home and abroad depends on the situation given by the airline. For example, if the plane picks up passengers quickly and the position is often vacant, the agent or travel agency that booked the group ticket before will be required to issue the ticket as soon as possible. Generally, tickets can be issued three working days before departure in Southeast Asia, and after visas from some countries in Europe and Australia come out, that is, about one week before departure. It's hard to say what China has. Hope to adopt