Originally Posted by
caGALINDO
expertflyer used to do that
now, in my dreams
Not sure what you mean, but ExpertFlyer continues to allow Flight Alerts to be set for MilesAAver award classes Z, U and T on any specific flight.
Go to the Awards & Upgrades tool, put in the date(s) and route(s) and class(es) you want to check. On the far right side of the results page is a "!" icon where you can than set an alert for the class you want on that particular flight/date.
I believe this is what the OP was asking for.