Sita Air is an airline based in Kathmandu, Nepal, operating domestic services within Nepal. The airline was established in 2003. The airline's main base is Tribhuvan International Airport with hubs at Pokhara Airport and Nepalgunj Airport.

Tribhuvan International Airport is an international airport located in Kathmandu, Bagmati, Nepal. It has a tabletop runway, a domestic terminal and an international terminal. As the country's main international airport, it connects Nepal to over 40 destinations in 17 countries. The airport is designed in a shape of an airplane when looked from above. The runway extending from the nose to the tail, with the terminal buildings aligned along the fuselage. The distinct shape is visible after takeoff, and while hovering.