SWISS International Air Lines has a well-structured Unaccompanied Minor (UMNR) policy that generally allows children aged 5 to 11 to travel alone using the mandatory UM service, while it remains optional for teens aged 12 to 17, depending on route and parental preference. The service includes airport assistance, priority boarding, in-flight monitoring by cabin crew, and supervised handover to the authorized guardian at arrival. Parents must complete consent forms and ensure all travel documents are in order, especially for international flights. Fees vary by route (short-haul vs long-haul), and not all connections are permitted, so nonstop or SWISS-operated flights are strongly recommended—overall, SWISS is considered one of the more reliable and parent-friendly airlines for minors flying solo.