If you are considering traveling with your children then Croatia Airlines offers to the children 5 to 12 years old can travel alone. However, if children travel as unaccompanied minors then they need to arrive before check-in time. Additionally, Croatia Airlines Unaccompanied Minor policy does not allow traveling alone below 5 years of children, only they can travel with their parents or guardians. For more details, visit the Airlinesunaccompaniedminor website.