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.Travel permit does not conflict with any laws, Court orders, or supervision requirements;. 4. Financial means available for the trip and return;. 5. In the US, if you are 18 or older, you do not require parental approval either to obtain a passport or to travel internationally. If you travel alone with your minor(s), you'll need a Travel Permission Letter. A completed Declaration Under Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA) (form FL-105) is attached. 2. This form includes the traveller's name, passport number, and date of birth. A consent letter demonstrates that a child has permission to travel outside Canada from every parent or guardian who is not accompanying them on the trip. Documentation.) ❑ A child, grandparent, grandchild, sibling, spouse or domestic partner of the person listed on the birth certificate.