For Flying Blue : China Southern - FM miles and status benefits

Just note that on the Flying Blue side, they've temporarily stopped miles accrual on CZ this year "due to ongoing IT developments", whatever that means. So for the moment, it looks like benefits might also be paused too, which would be a pity......hope it comes back at some point.

For other airlines, check with the respective loyalty programme. You can sort of estimate what benefits there are based on reciprocity : https://www.csair.com/mcms/mcmsNewSi...mber/hyqy/hzhs