Planning a child’s solo trip is easier with the Delta Airlines Unaccompanied Minor Policy. Delta provides an Unaccompanied Minor Program for children ages 5–14 traveling alone, while travelers ages 15–17 can use the service when requested by a parent or guardian. The Delta unaccompanied minor service fee is $150 each way and covers up to four children traveling together.
https://unicorntravelz.com/umn....r-flight-rules/delta