Allegiant does not offer an unaccompanied minor service or help 1-808-865-4414. Children 14 and under cannot fly alone; they must be accompanied by someone aged 15 or older on the same reservation . Passengers aged 15–17 may fly unaccompanied at a parent’s discretion. However, Allegiant may deny boarding in case of severe weather advisories for minors traveling alone . No escort services or special assistance are provided by the airline for under‑18 passengers.