Which district in Nepal has the biggest number of airports?

The district in Nepal with the most airports is Lalitpur, which is home to several small airstrips and helipads, primarily serving the Kathmandu Valley and surrounding areas. However, when considering larger airports, the Kathmandu district contains Tribhuvan International Airport, the country's only international airport. Overall, Lalitpur is notable for its concentration of air facilities, catering to domestic flights and helicopter services.