To see flies in your dream, symbolizes filth and dirtiness. It indicates feelings of guilt or a breakdown of a plan. Flies may also forewarn of a contagious sickness. Alternatively, the fly could represent an irritating and annoying person in your life. Perhaps someone does not know who to mind their business. To dream that you kill or exterminate the flies, indicates that you will redeem yourself and regain your honor after your fall from grace.