What must I write in a child's travel consent form? If children are not travelling with both their parents, (ie: if they are travelling alone, or with another adult), this form can be used to give permission.The intention of this letter is to provide consent for a minor child to travel without the company of both legal parents. The most important preparation for traveling with a child out of state after divorce is obtaining consent from the child's other legal guardians. How do I write a consent letter for my child to travel? A child travel consent form allows a minor to travel alone or with another person or group. A travel consent is used to when traveling with minor children whether on trips with organizations, family members, or one parent. Know what documents a child needs to travel to or from the U.S. All children, including infants, must have their own travel documents. To download and fill out the document, ensure that you have a pdf reader installed. See what documents a child needs to travel to or from the US alone or with a parent or relative.