See what documents a child needs to travel to or from the US alone or with a parent or relative. Non-US citizen children traveling to the US.Minor (Child) Travel Consent Form. A minor (child) travel consent form shows that a child has permission to travel without both parents or legal guardians. We will be sharing some family travel tips about what documentation is needed, such as a travel consent letter, for international travel with a minor. Ensure hasslefree travel for your child with a minor travel consent form. Discover tips and templates for smooth journeys. A letter for permission to cruise is generally required when a non custodial non parent brings along a minor. Minor travel consent form giving partental authorization for child to travel with another person or only one parent. Minor travel consent form giving partental authorization for child to travel with another person or only one parent.