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. 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. A notarized letter of consent is a crucial requirement when traveling with minors without both parents or guardians. Passport control would generally be the ones asking. However, airlines can also ask for it. Use our Child Travel Consent form to prove that a child can travel without their parents or guardians. We will be sharing some family travel tips about what documentation is needed, such as a travel consent letter, for international travel with a minor.