allegiant unaccompanied minor policy. Allegiant Air permits kids to journey alone who’re aged 15 years or older. In case the traveler is 14 years previous or youthful, he/she should be guarded by an individual getting old 15 years or older. To grasp extra insights into the Allegiant Airlines kids coverage, be at liberty to dial 1-877-563-0127 / +1-860-590-8822 (toll-free).