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.I was preparing documents and someone told me that I might need minor travel consent form since I am not leaving. A minor travel consent form is a legal document that grants permission for a minor child to travel without one or both parents or legal guardians. You'll need to fill out an unaccompanied minor form and any necessary Customs and Immigration documents for the day of departure. Juvenile Court authorization for a child to travel outside the U.S. to vacation or visit family in a foreign country, the assigned Senior. If the child was born out of wedlock, there may be additional documents required. Applicant's hukou, if any.