It can depend on a lot of things - whether any plates or screws were put in, how you're doing with PT, how serious the surgery was... avg time is probably 3-4 months, but it can be longer based on those other factors. im on my 7th month and still in alot of pain why The avgerage time from ankle surgery is around 6-8 weeks. This includes rehilibation time and cast or bandage your ankle which be more if your ankle does not heal or was infected.