Originally Posted by AsiaMission

I am planning to take my family of five ( 4 adults + 1 kid) From YOW to YVR with a stop over for 5 days in YYC, next year, Aug 2008. I just did a mock-booking on my account, it shows 125,000 AP, which is good for five passengers on AP and on the same flight.
My question is, how far ahead should I book these AP tickets? 4,5 months, or should be earlier?
I appreciate any inputs and advices very much.