Report Abuse. Chicken that has been frozen properly will last 3 months if frozen in the stores package. If repackaged into freezes bags and all air removed it will last up to 6 months.The store packaged frozen chicken is safe to eat but you may find some freezer burn which will effect the taste and be a little tough.f your chicken was super-fresh when you put it in the freezer, it should be okay for about 9 months (your freezer may be different).