I went Nepal after four years. I was going Nepal with my wife, son, my mother-in-law and my wife’s friend (Marie). I was so excited, I was so thrilled to going back to see my family. Because my son is going to meet my side of family in Nepal first time. He was three and half year. So nobody have seen him in real, but they seen him in pictures.
We bought plane ticket six month ahead. From http://www.zentravels.com and I regret that I bought from there.

(London Airport waiting for ticket)

But their service is sucks. When we went to Chicago airport the lady of the boarding counter says that we don’t have returning ticket from Katmandu. It wasn't good news to hear. We call Zen travels and talked to them. He was telling do not worry everything will be fine but it wasn’t. See what happen in London airport. We waited for ticket for four hours, so in Bahrain. So i suggest if you buy a ticket for Nepal think and look for good and responsible travel agencies, not the chipper who start bargained from the beginning. Also Zen travels change their price four times. It was sucked. I will never do business with them. I have several picture every where I have waited for ticket. But I am not going to post that here.