Answered by ZUPAN | Dec. 24, 2019 12:50
Ju, if you have correctly presented your flight itinerary, you are definitely eligible for 24 hour visa free transit and you don't need any kind of visa. Your entire transit time in China will be 22 hours and 20 minutes and that is less than 24 hours. Great.
You will print out your flight tickets and have those printouts with you. Also, you will declare at check-in in Helsinki that you will travel to the Philippines via China using 24 hour visa free transit. After a check of your tickets, you will be allowed to board the plane. During your check-in, you will inform yourself whether your luggage will be tagged to Chengdu or Guangzhou. It is very hard to predict this detail because it depends on airline and also on airport policies, so try to be informed in the best way possible.
Upon your arrival in Chengdu, you will approach 24 hour visa free transit counter where you will apply for a temporary entry permit to be allowed to proceed with your journey because your next flight will be a domestic one. Also, if you will have to, you will collect your luggage and perform a recheck for your flight to Guangzhou. Just be very fast to accomplish everything on time. The good thing is that you, I assume, have a single (through) ticket all the way to Guangzhou, so Sichuan Airlines will definitely help you to catch your flight to Guangzhou.
Upon your arrival in Guangzhou, you will be free to exit the airport and to explore the city for some time, but be careful to return at the airport for your flight to the Philippines :) Also, I assume, that you will take some other airlines from Guangzhou to the Philippines, so you will have to collect your luggage and perform new check-in for your final flight, probably by Cebu Pacific.