Originally Posted by
benzemalyonnais
it's usually 200 rmb each way, which is some 30$ or so. your fare is 600 rmb ai, so I'll guess that either you got a very very decent SH - BJ fare or you're flying to a nearby city.
I'm pretty sure that it's still y50; it's the fuel surcharge that fluctuates (currently y150 on PEK-SHA).