Use our Child Travel Consent form to prove that a child can travel without their parents or guardians. 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. 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. Provide your child's basic information. A child travel consent form allows a minor to travel alone or with another person or group. 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. When a kid goes on a trip without a parent or legal guardian, migration officers can require to show a letter of consent.