How can one book an unaccompanied minor flight with Spirit Airline? Lufthansa Airlines allows kids to travel solo, who are between 5 to 11 years.Unaccompanied youngsters should have every one of the archives helpful in both the city of beginning and the city of objective. According to the Lufthansa Minor Policy travellers matured somewhere in the range of 5 and 11 years who are not going with somebody who is no less than 12 years of age are considered as 'unaccompanied minors'. Unaccompanied minors flight tickets must be bought by calling the client care number or via the carrier's ticket counter.