I transit in Beijing to go to Phuket. I have a short connection 1H40. Do I have enough time ?

Hi, Manon. I assume that you will transfer from international to international, right? 60 minutes is enough within T3; 100 minutes within T2; 120 minutes between T2 and T3. So, the time is enough for you to transfer within the same terminal, but it is not enough between terminals. Hope you can catch the flight.