Flight Tribhuvan International Airport departs from Kathmandu Tribhuvan International Airport at 12:50 and arrives at Colombo Bandaranaike International Airport at 16:10.
The flighttime is about 3h 50m. The distance travelled ("as the bird flies"): 667 Km. So the average speed is roughly 174 Km.
There is an 0.5 hour time difference between Kathmandu and Colombo
