Summer and fall are the most common times to find fruit flies in your home. Although they may occur year-round, the usual abundance of ripening fruit in many people’s homes in the summer and fall tend to attract more flies. Fruit flies are often identified by their erratic flying patterns, usually near ripening fruit in the kitchen. They are small, between one-eighth and one-fifth of an inch long. They usually have red eyes and can vary in color from black to tan. Fruit flies aren’t a direct health risk, but they can be extremely annoying.