1 How long does raw chicken last after being frozen and thawed? 2  Chicken that has been defrosted in the fridge can be kept for an additional 1 to 2 days in the refrigerator before cooking; chicken that was thawed in the microwave or in cold water should be cooked immediately. How long does raw chicken last after the sell-by date? 2  After chicken is purchased, it may be refrigerated for 1 to 2 days — the sell-by date on the package may expire during that storage period, but the chicken will remain safe to use after the sell by date if it has been properly stored.