A child travel consent form is strongly recommended if a child travels alone, with only one parent or an authorized adult. If only one parent is traveling with the child fill out subsection iii.Enter the traveling parent's name, passport number, country of issue and date issued. 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. The intention of this letter is to provide consent for a minor child to travel without the company of both legal parents. A child travel consent form allows a minor to travel alone or with another person or group. Your child needs a Child Travel Consent when they're traveling without all their parents or legal guardians. Parents may have joint custody even if the child resides with only one parent. It's required when a child is traveling alone, with just one parent, or with someone who isn't their guardian, whether domestically or internationally.