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.Use our Child Travel Consent form to prove that a child can travel without their parents or guardians. A child travel consent form allows a minor to travel alone or with another person or group. There are forms you can download and sign for this. Send them with POAs, insurance cards, and this form. A minor travel consent form is needed when a child is traveling without one or both of their legal guardians. Does anyone know where I can find a form to authorize travel for my grandson cruising with me, and not with his parents? A notarized letter of consent is a crucial requirement when traveling with minors without both parents or guardians. While it's recommended to have notarised written consent, it's definitely not required and in my experience you're highly unlikely to be asked for it.