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.Minor children may be able to travel to another country without either one of their parents. Rocket Lawyer has a free travel consent form you can fill and print, then you just have the parents sign and notarize. I was preparing documents and someone told me that I might need minor travel consent form since I am not leaving. A child travel consent form allows a minor to travel alone or with another person or group. It's just a freeform letter that says your children have permission to travel with their other parent. One or both parents who are married or in a common-law relationship and live together with the child. Both parents usually have custody rights over the child. Documents for minors travelling in the EU. Rules and authorisations.