What is it like in September to Jan. in Qingdao? And can i find cheap flight tickets from Pakistan?

Hey, you are lucky that the hottest season has passed and the weather in Sep. to Jan. can be pretty pleasant. During these months, the hightest temp may reach about 27C and the coldest months are Dec. and Jan. when the lowest temp may fall to -5C. I suggest you prepare both short and long sleeved shirt, one or two pairs of shorts, light sweater, jacket, jeans, overcoat and long john in case.

For flight, it seems that the Pakistan International Airlines is the best choice. You can fly from your capital to Beijing and transfer to another flight to the city. You may try to book the air tickets from Travel China Guide, which offers great discounts. I've used their service a couple of times.