Most U.S. airlines will permit children who have reached their fifth birthday to travel unaccompanied. Kids ages 5 through 11 who are flying alone must usually travel pursuant to special ?unaccompanied minor? procedures. On some airlines, these procedures are required for unaccompanied children as old as 14.

Yes, an 11-year-old can fly alone, but they must use the Unaccompanied Minor (UM) service on almost all major airlines. Airlines generally consider children aged 5 to 14 as unaccompanied minors if they are not traveling with someone at least 15 to 18 years old. When you book an 11-year-old as a UM, the airline takes legal responsibility for the child; a staff member will escort them through security, wait with them at the gate, and hand them over to a flight attendant. Upon arrival, the child is escorted through the airport and only released to the specific adult named in the paperwork after a photo ID check. There is typically a mandatory fee for this service, ranging from $50 to $150 per flight. Some budget airlines, particularly in Europe (like Ryanair), do not allow children under 16 to fly alone at all. Always check the specific airline's policy, as some allow 12-year-olds to fly as "young adults" without the UM service, but for an 11-year-old, the formal escort service is almost universally required for safety and security.