Dog Fleas Survival Guide: How Long They Live Without a Host

Dog fleas can survive without a host for a limited time, typically living only a few days up to two weeks without a blood meal. Adult fleas rely on the warmth and blood of their hosts, such as dogs or cats, to survive and reproduce. Without a host, fleas may hide in environments like grass, carpets, or pet bedding, but their survival depends heavily on temperature and humidity. In optimal warm and humid conditions, adult fleas might survive closer to two weeks, while flea eggs, larvae, and pupae stages can last from days to several months, with pupae able to remain dormant for up to six months waiting for a host.