Can I stay for the cremation and take my pet’s ashes home with me? Can I stay for the cremation and take my pet’s ashes home with me? September 1, 2015 Erika Peterson No. The process takes up to four hours, not including cool down time for the incinerator. It is best to come back the day after the cremation. Newer I don't live here permanently and want to take the ashes back home to scatter them. Will there be a problem taking them on the plane? Older Can I get any ashes back if I have my pet communally cremated?