Can I reserve a seat for children?

Small children travel free of charge on ÖBB trains and buses and without a ticket. Children under 6 years of age do not receive their own seat, so a reservation will not be charged.
You can also purchase seat reservations for small children without your own ticket, but you would have to be at least 6 years old. As soon as a child is 6 years old, a reservation will be charged.