Question : How much should a trip from Changsha (CSX) to Calgary (YYC) cost?
Answer : Flight prices are fluctuating a lot less for this route than most routes from China, as they're ranging from $901 to $1,059. The further out you book a route, the more likely you are to save.
Question : How long do most people stay in Calgary?
Answer : Of course you're not most people, but if you were, you'd stay roughly 78 days.