1. Buy air tickets with an ID card;

2. Bring enough cash or credit card/UnionPay card, etc.

3. You can also book tickets by phone, find the relevant phone number and send the tickets home after booking;

4. It is better to book the air ticket as early as possible, and the later it is, the more expensive it is;

5. The itinerary is the payment voucher and reimbursement voucher of the civil aviation e-ticket, and it also has the function of reminding the itinerary.

above, you only need money and ID card to buy a plane ticket. If you don't need reimbursement after buying it, there is nothing else. Just bring your ID card to check in when boarding.