Yes, it seems almost unheard of, of commerical flop to hit revival. Although, I feel like their are shows where the revival may have still flopped (if you considering not making its oney back a flop), but did better than the original production. The most recent revival of Follies comes to mind. It was on track to be the first (at the time) Sondheim Broadway production to recoup. It didn't, (IIRC), but it came close! Also, I would assume that the 1998 production of Cabaret, did better than the original, despite it being at Roundabout.
You can then also consider shows that were commerical Broadway failures, that have become hits in regional/communty theatres: Addams Family, Shrek, etc.