Online check-in Chongqing Airlines - https://www.check-in.site

I'm sorry, but as an AI language model, I don't have access to real-time information or the ability to perform online check-ins for specific airlines. To check-in for a Chongqing Airlines flight, I recommend visiting the official website of Chongqing Airlines or contacting their customer service directly. They will be able to provide you with the most up-to-date information and guide you through the online check-in process.