How do I write a consent letter for my child to travel? The form linked below is permission to travel.Download and fill it out. The intention of this letter is to provide consent for a minor child to travel without the company of both legal parents. 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. A child travel consent form allows a minor to travel alone or with another person or group. Legal Requirement: Many countries and some airlines require a travel consent form for minors traveling without one or both parents. A child travel consent form is strongly recommended if a child travels alone, with only one parent or an authorized adult. Want to know what is a Child Travel Consent and how to fill one out? This video is for you.