To enter Huayna Picchu you must first enter Machu Picchu, so it is logical that the entrance is included, today there are many options and times to buy access to Huayna Picchu, there are two very early shifts and also other alternatives such as the Mountain from Machu Picchu, prices also vary. So all these services and prices change by season and every year, we could not publish precise information, maybe when you read this article the regulation will change. The best thing you can do is contact your tourism agent or Hierba Buena Tours to sort out the management of your tickets.
Remember to make your reservations well in advance, in this case it is better to do it six months before.