

Istanbul --> Wuhan ---> Guangzhou ---> Ho Chi Minh
I'm a Bulgarian citizen so I'm eligible for the 144-hour visa free transit. There are two flight options. The first one has a 22 hour stay in the city and a 19h wait in Guangzhou before continuing to Ho Chi Minh. The flight is purchased altogether with China Southern. Would I be allowed to travel visa free with it? Can I leave the airports to explore the city or I must stay at the airport/transit area at all time?
The second option is a flight from Istanbul to WH with only a 2h layover, flying to Guangzhou from there and after a 3 hour layover, flying out of China to Vietnam. It shouldn't be a problem in general as the total time spent in China would be less than 7 hours including the flight between WH and Guangzhou. What concerns me a little bit is that you've written: "A: departure country ⇒ B: WH ⇒ C: the third country or region". Do I need to flight from WH directly out of China or can I have a second layover? With both of the potential itineraries, I'm buying a single ticket from Istanbul to Vietnam. Please explain! Thank you for your help!