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.North Oakland Transportation Authority. Who qualifies as a "child" depends on local laws for consent. Hi, My wife and my newborn son are about to go visit family in Korea. The intention of this letter is to provide consent for a minor child to travel without the company of both legal parents. I authorize my child to travel with the following individual: Travel Individual Name. Travel Relationship to Minor. In the introduction section, briefly explain the purpose of the form, which is to grant permission for the child to travel with the accompanying adult. This form is required for a minor to travel.