Allegiant Air Unaccompanied Minor Policy
Call this number for Children & Minors: +18704327330. Allegiant Air Unaccompanied Minor does not allow unaccompanied minors that are under fifteen and fly alone. An adult is defined as someone who is fifteen years of age or older. Youngsters under fifteen years old are required to travel in the same car as an adult who has a reserved seat. Please give us a call at +18704327330 if you need any other information.
Yes, you can change or cancel your Allegiant Airlines ticket up to 24 hours in advance without incurring any fines. Reservations must be made at least one week (168 hours) in advance of the intended departure time in order for this policy to be in force.
Link : https://www.flyamericans.com/blog/allegiant-air-unaccompanied-minor