As of March 2026, Delta Air Lines charges a $150 USD fee each way for its Unaccompanied Minor (UMNR) service. This fee is mandatory for children aged 5 to 14 traveling without an adult and is optional for teenagers aged 15 to 17. The fee covers up to four children traveling together on the same itinerary. This service provides a Delta employee escort from check-in through the flight and during any connections, ensuring the child is safely handed over to the authorized guardian at the destination. In 2026, Delta continues to offer "Sky Zones" in major hubs like Atlanta and JFK—secure, kids-only lounges where minors can wait for connections with snacks and video games. Note that children under 5 are generally not permitted to travel alone, and those using the UMNR service must typically travel on nonstop or direct flights to minimize risks.