There is no single universal age rule
Airlines set their own minimum ages and decide when the formal unaccompanied-minor service is mandatory, optional, or unavailable. The rule can also change for international journeys, connections, and flights operated by a partner airline.
Begin with the operating carrier on every segment, not only the logo shown on the ticket. A codeshare can look like one airline online while another airline's acceptance rules control the flight.
The service is a defined handover process
Where accepted, the service normally sets procedures for check-in, transfer to airline staff, supervision during parts of the journey, and release to a named adult. It is not a private chaperone and it does not remove immigration or consent requirements.
- Confirm who must stay at the departure airport and for how long.
- Check the identification required from both handover adults.
- Ask whether connections, terminal changes, or the last flight of the day are permitted.
- Keep the airline's confirmation and emergency contact details accessible.
Prepare for changes without alarming the child
A simple explanation of check-in, security, boarding, and arrival can make the journey more predictable. Pack essential contact details and permitted comfort items, and agree what the child should do if a flight changes.
If the airline changes the itinerary, ask it to reconfirm the service on the new operating flight. The original request does not automatically guarantee acceptance after rebooking.