According to EatByDate, most yogurt lasts 2 to 3 weeks after the expiration date. Certain varieties of yogurt may have a shorter or longer shelf life. For example, Greek yogurt and reduced fat yogurt only last 1 to 2 weeks after the printed expiration date.
Yogurt that contains fruit typically only lasts 7 to 10 days. Any type of yogurt that has been opened should only be consumed up to a week after the expiration date. Yogurt can safely be stored in the refrigerator by placing the foil top back on the carton or by placing it in a container with a lid.