JetBlue's unaccompanied minor (UM) program is designed to ensure the safety and comfort of children traveling alone. When a child between the ages of 5 and 14 is traveling without an adult (18 years or older), they are considered an unaccompanied minor. JetBlue charges a fee for this service, which covers the additional assistance and supervision provided to these young travelers , the jetblue unaccompanied minor fee charged by JetBlue is a comprehensive service that includes dedicated check-in, in-flight supervision, and assistance during connections, among other benefits. While the fee may vary depending on the flight itinerary, it is intended to cover the additional costs associated with ensuring the safety and comfort of children traveling alone. website : - https://travobravo.com/jetblue-airlines/jetblue-unaccompanied-minor/