Use our Child Travel Consent form to prove that a child can travel without their parents or guardians. Ensure safe travels for your child with our free travel consent form template and expert guide.Get consent from both parents and travel with confidence. Know what documents a child needs to travel to or from the U.S. All children, including infants, must have their own travel documents. Travel is: Domestic, International. Domestic. Use a child (minor) travel consent form to let someone under 18 travel alone or with someone other than their legal caretakers. According to the USA. Gov website, if a child is traveling abroad with one parent, the other parent must supply a notarized letter granting permission. 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.