Aer Lingus allow kids to travel alone with the help of their Unaccompanied minor program. Furthermore, this service ensures a seamless and secure travel experience for children aged 5 to 11 years flying alone. However, children aged 12 to 15 can fly alone without using the Aer Lingus Unaccompanied Minor services, but if they add, then get to accord with its related proviso. In order to inquire more about UMNR's feature, you can get a hold of their customer service.