Infants 15 days to 24 months of age: Infants may travel, for no charge, on the lap of a fare-paying adult OR you may purchase a ticket for a seat in order that the infant be secured in an FAA approved car seat during flight (recommended).
Children & Minors: Allegiant does not accept unaccompanied minors under the age of 15. Passengers 15 years or older are considered an adult. Passengers younger than 15 years old must be accompanied by an adult who is ticketed on the same reservation.
Hotel Reservations: Passengers must be 21 years or older to check-in to a hotel.
Car Rental: Passengers must be 21 years or older to rent a car, and underage driver surcharges may apply.