Connecting flights (Kashgar to Bangkok, Bangkok to Guangzhou), do not leave the international transit area, do not need a Thai visa, but do you need a passport?

I suggest you ask the airline, as different countries and different flights have different requirements, it is recommended to prepare a passport.

Thailand can get a visa on arrival for Chinese citizens, not visa-free! So a passport is a must!

Should be needed! <br/>You can also consult Ctrip, they are more professional. <br/>My reply is helpful to you, please click to accept, thank you. <br/>Have a nice trip!

A passport should be indispensable.

Passports are required to take international flights, and I can’t go through customs in Kashgar with my ID card alone, and I can’t even go through the check-in procedures for the first flight.