A child travel consent form allows a minor to travel alone or with another person or group. A clear statement that grants permission for the child to travel with you.Signatures from both parents, and a notary public if needed. How to fill out the Child Travel Consent Form Instructions and Guide? The form can be used when a minor travels with only one parent or legal guardian, alone, or with another adult or organization. Travel consent forms for Under 18's. Anyone under the age of 18 will need the consent of their parent or legal guardian if they want to travel. A child travel consent form allows a minor to travel alone or with another person or group. Establishing parentage identifies the child's legal parent. The intention of this letter is to provide consent for a minor child to travel without the company of both legal parents.