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.A child travel consent form is strongly recommended if a child travels alone, with only one parent or an authorized adult. The intention of this letter is to provide consent for a minor child to travel without the company of both legal parents. A child travel consent form allows a minor to travel alone or with another person or group. Your child will need a Child Travel Consent any time they're traveling without all their parents or legal guardians present. You can ask the judge to order that only one parent can consent to the child getting a passport. A clear statement that grants permission for the child to travel with you. Signatures from both parents, and a notary public if needed. One or both parents who are married or in a common-law relationship and live together with the child.