The flight duration from Kathmandu, Nepal, to Delhi, India, can vary depending on several factors, including the airline, the specific route taken, and weather conditions. On average, a direct flight from Kathmandu to Delhi takes around 1 hour and 30 minutes.

However, it’s important to note that flight durations can be subject to variations due to factors such as air traffic, weather conditions, and specific flight schedules. Additionally, if there are layovers or connecting flights involved, the total travel time will be longer.

To get the most accurate and up-to-date information about flight durations and schedules, it’s recommended to check with the respective airlines or use online flight search engines that provide detailed flight information.