A child travel consent letter is a signed statement in which a parent or legal guardian authorises a minor to travel. It is most often needed when a child is not travelling with both parents — for example, travelling with one parent only, with a grandparent, relative or family friend, entirely unaccompanied, or as part of a school, sports or church group. The document reassures airlines and border officials that the trip is authorised, which matters most on international and cross-border journeys where authorities are alert to child trafficking and parental abduction.
A useful letter identifies everyone involved and the trip itself. Include the child's full name, date of birth, nationality and passport number; the consenting parent(s) or guardian(s) with their relationship to the child, ID or passport numbers, contact details and signatures; and, where someone is accompanying the child, that adult's full name, relationship, ID or passport number and contact details. Set out the destination (and any transit points), the purpose of the trip, and the departure and return dates. Add an emergency contact, and expressly authorise the accompanying adult to consent to emergency medical treatment on the child's behalf.
Many airlines and immigration authorities will not accept a plain typed note. They commonly require the letter to be notarised — signed before a notary public or commissioner for oaths — so the signatures can be relied on as genuine. Officials also frequently ask to see the letter together with supporting documents: the child's birth certificate (which shows the parents' names), the child's and the parents' passports, and copies of the parents' national IDs. Carry originals as well as copies. Because a formally sworn document is often expected, the same commissioner for oaths who prepares an affidavit can usually attest a travel consent letter.
Requirements vary widely. Each airline sets its own rules and forms — particularly for unaccompanied minors, who usually need the airline's own unaccompanied-minor service booked in advance — and every destination country, plus any country you transit through, applies its own entry conditions. There is no single global standard, so confirm the exact requirements directly with your airline and with the destination country's immigration authority before you travel, and prepare the documents well ahead of the departure date.
Some situations need extra paperwork. If a parent has died, carry the death certificate alongside the birth certificate; if one parent has sole legal custody, carry the court order or custody document. Where a parent will be away for a longer period or needs someone else to make decisions for the child, a broader power of attorney may be more appropriate than a single-trip letter, and families arranging ongoing care sometimes back it with a written agreement setting out responsibilities. This page is general guidance, not legal advice — when in doubt, confirm with your airline, the relevant immigration authority, or a qualified professional.