When a child chooses to fly alone, they are entitled to follow certain rules and regulations to ensure their safety. Well, when you are flying with Bulgaria Air, then there is no need to panic as they have listed their Bulgaria Air Unaccompanied Minor Policy, which allows parents/guardians and kids to acquire knowledge about how their safety with the airlines will be kept at top priority. Kids of the age group 3 to 5 will get an escort from the airline, and the full cost will be applied with 50% of M Class.