Spirit Airlines charges a fee for unaccompanied minors to ensure their safety and provide additional support during their journey. The fee, which is typically around $100 each way, covers the extra supervision and assistance required for children traveling alone. This service includes priority boarding, dedicated attention from airline staff, and monitoring throughout the flight. The policy is designed to make the travel experience smoother and more secure for young passengers. Parents and guardians are advised to review Spirit Airlines' guidelines and prepare their child for the journey to ensure a safe and pleasant trip.