Unaccompanied Minors Flying Alone: Documents, Fees & Rules

Many families face the question of a child flying alone — without a parent or accompanying adult — when a kid is visiting relatives or heading to summer camp. Most airlines run a dedicated Unaccompanied Minor (UM) service for this, though the rules, age limits and paperwork vary by airline. This guide explains what you need to get a child traveling safely and legally.

✈️ From what age can a child fly alone

• Most airlines require the UM service for children aged 5-12
• Teenagers aged 12-17 are often allowed to fly alone without the UM service, though parents can still request it
• Almost no airline allows a child under 5 to fly unaccompanied
• The exact age limit is on the airline's website — always check it before booking

📄 Documents you'll need

• The child's valid passport — with at least 6 months of validity from the travel date; see passport validity rules
• A notarized consent letter from the parent(s), especially when only one parent is traveling with the child
• The name, phone number and passport details of the person picking the child up at the destination
• The airline's UM form, signed by both the sending and receiving parent

💶 The UM service — cost and booking

The UM service is a paid extra — usually $12-30 one way, depending on the airline and route. It has to be added separately when booking or right after, by phone or at the airline's office, since online check-in usually doesn't work for UM passengers.

🛫 How it works at the airport

• The sending parent goes to the check-in desk with the child — see the check-in desk guide
• An airline staff member walks the child from check-in to the aircraft and hands them over to a flight attendant
• On arrival, the receiving adult must show ID before the child is released — no handover happens without it
• For a long or connecting flight, check in advance whether the airline accepts UM passengers on connections at all

🌍 What to watch for abroad

In some countries, border control asks extra questions when a child is traveling without a parent — especially in the Schengen area. Always carry the original consent letter, not just a photo of it.

Getting ready

With the right paperwork in place, a child flying alone is a safe, straightforward process. For more practical tips, see the travel documents guide, and search flights on Travel365's price calendar.