Originally Posted by
bizclassboy
From experience I would say all the best seats are gone 23 h and 59 min before take off
As a non-status member two years ago, I was able to preselect the best Upper Deck seat on one occassion and recently was able to select the best seat for my OH (non-status) at T-23 (ish) on a 777 LGW-MCO.
As others have stated, it depends on which route you fly and how busy it is.