Use our Child Travel Consent form to prove that a child can travel without their parents or guardians. How do I write a consent letter for my child to travel?Know what documents a child needs to travel to or from the U.S. All children, including infants, must have their own travel documents. A request form will need to be filled out upon arrival. We will call you when your documents are ready to be picked up. The intention of this letter is to provide consent for a minor child to travel without the company of both legal parents. You need to bring the birth certificate. To create this form, gather all necessary details about the child, the accompanying adult and the travel. Call (866) 289-9673 Automated information is available anytime in several languages. Investors are not required to fill out an FS Form 1199A.