Originally Posted by
dr_torch
If I may ask, how do you get that information?
There are a few tools available; expertflyer / KVS (Cost) and some others that are (free) I think if you join ANA then you have a rewards tool havent used it som dont know to much to tell you.
I personally use expertflyer and one of the benefits is that you can save as search for an flight and if space opens up you will be notified.