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.If children are not travelling with both their parents, (ie: if they are travelling alone, or with another adult), this form can be used to give permission. 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. This file provides detailed information about the Child Travel Consent Form, including who needs it and how to fill it out. There are forms you can download and sign for this. Send them with POAs, insurance cards, and this form. 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. Here are the steps to write one: 1. Document Header - Begin with a clear and descriptive title, like "Child Travel Consent Form."