House flies are easy to identify by their large size (1/2 inch long), black body, and six legs. They have two large compound eyes that are often red or green. They also have a long, slender proboscis that they use to suck up food.
The best way to get rid of house flies is to eliminate their food sources by thoroughly cleaning your kitchen and bathroom. You can also use commercial fly traps or bait. If you have a severe infestation, you may need to call a professional exterminator.