GC and Non-GC Travellers, where do you buy the tickets to China?

Whether you have AP or different visas, can you share where you buy tickets going back to China with best price? how much is the reasonable cost now if I want to travel in July? I'll fly out of NJ/NY area. Thanks in advance.

I am sorry if this post is not appropriate on this forum, I really don't know where to get info but I know people here can help me.