Minor children may be able to travel to another country without either one of their parents. Children must have their own passport, visa or other international entry documentation required of adults.

Yes, a 16-year-old can technically cross the border alone, but the documentation requirements are significantly more stringent than for adults. In 2026, while a minor of this age is capable of traveling independently, customs and border protection agencies globally—especially at the U.S. and Canadian borders—require a valid passport for air travel. For land or sea crossings between the U.S. and Canada, 16-year-olds must also present a passport, unlike younger children who might use a birth certificate. Critically, it is highly recommended (and often mandated by airlines) that the minor carries a notarized Child Travel Consent form signed by both parents or legal guardians. This document proves that the minor has permission to travel solo and helps prevent issues related to child abduction or human trafficking. Without this form, border agents have the authority to detain the minor until their parentage and permission can be verified, which can lead to significant travel delays.