Travel insurance is generally not a mandatory requirement for flying to or entering Chengdu, China, especially for those on a standard Tourist L visa. However, it is highly recommended by travel experts and government agencies to protect against significant financial risks. While most visitors do not need to provide proof of insurance for entry, certain visa types or specialized travel permits, such as those required for visiting Tibet from Chengdu, may mandate coverage that includes medical evacuation and high-altitude sickness. Furthermore, because foreigners cannot receive free healthcare in China and must often pay for medical services upfront in cash or through local bank cards, having a comprehensive plan that covers medical emergencies, trip cancellations, and flight delays is essential for peace of mind. For those working in China, contributing to the official social insurance system is a legal requirement, but for short-term travelers, the choice of "official" or private insurance remains optional but strongly advised to mitigate the potential for high out-of-pocket expenses.