I bought a plane ticket online, and the text message came saying that I had to check in at the airport two hours in advance. Is it really necessary to advance two hours? How can I change the ticket I

I bought a plane ticket online, and the text message came saying that I had to check in at the airport two hours in advance. Is it really necessary to advance two hours? How can I change the ticket I bought online? Domestic flights stop boarding 30 minutes in advance. If you are boarding at a small airport, you can board the plane 45~60 minutes in advance. There are few flights at small airports, so it won't take long to queue up for security check. If it is a large airport, such as Shanghai Pudong, Hongqiao, Capital Airport, Guangzhou Baiyun Airport, etc. Due to too many flights, the airport security queue is long and the checked baggage is delayed. Try to arrive at the airport 60~90 minutes in advance to change the boarding pass and checked baggage.

Now they are all e-tickets. You can go directly to the airline counter (or the self-service terminal) to apply for boarding pass (and checked baggage). Then check in and board the plane;