If you are traveling alone with your child, you may be required to present documentation proving you are the parent or legal guardian. You may also need a letter of permission from the other parent for your child to travel.

While not always a strict legal requirement for domestic travel, it is strongly recommended that you carry a Child Travel Consent Form (also known as a "Minor Travel Consent") if you are traveling with your child without the other parent. This document provides proof that the non-traveling parent or guardian has granted permission for the trip, which can prevent significant delays at border crossings or airport security. In 2026, authorities and airlines are increasingly vigilant about preventing international child abduction; if you are traveling internationally, a notarized letter is often mandatory for entry into certain countries. The letter should include the child's full name, birth details, your travel itinerary, and the contact information of the non-traveling parent. If you have sole custody, you should instead carry a copy of the court order or a birth certificate that lists only your name. Having the letter notarized at least a week before departure is the gold standard, as it verifies the signatures and makes the document legally official, ensuring a smooth and stress-free journey through various immigration checkpoints.