Denny's 5201 Granite Lane 6:00 AM - 10:00 PM 6:00 AM - 10:00 PM 6:00 AM - 10:00 PM 6:00 AM - 10:00 PM Open 24 Hours Open 24 Hours 6:00 AM - 10:00 PM5201 Granite Lane Sioux Falls, SD 57107 US