How Long Do Flies Live?
There are many families of flies in North America. Although the life cycle of a fly can range from days to years depending on species and conditions, all flies undergo a complete four-stage life cycle that consists of egg, larva, pupa and adult stages.
The adult housefly can live up to one month in the wild. The fruit fly also lives for approximately 30 days after reaching adulthood. Flies survive longest in warmer temperatures and their ideal temperatures—between 75 and 80 degrees—are those found in most American homes.