Italian minors under 14 years of age can only fly duly accompanied and with one of the following types of identification:
An individual Italian National ID (national flights), which should be valid "per l'spatrio (for expatriation)"for international flights.
An Italian passport (national and international flights).
For international flights and along with the individual Italian National ID valid for international flights or a valid Italian passport, any minor under the age of 14 not accompanied by their parents or legal guardians should carry a travel permit (Dichiarazione di Acompagno”) stating the identity of their escort, which should be validated by the corresponding Italian local authority (“Questura local”). For more information, please check with the corresponding local Italian authority.