You could know the inventory pretty well with FareCast[1] and ExpertFlyer[2]. Paying a few bucks to lock in a lower fare before prices skyrocket at the last min

You could know the inventory pretty well with FareCast[1] and ExpertFlyer[2]. Paying a few bucks to lock in a lower fare before prices skyrocket at the last minute seems quite reasonable. 1: http://www.bing.com/travel/ http://www.bing.com/travel/ 2: http://expertflyer.com/ http://expertflyer.com/