Flight International Airport departs from Doha International Airport at 02:30 and arrives at Kathmandu Tribhuvan International Airport at 09:40.
The flighttime is about 4h 10m. The distance travelled ("as the bird flies"): 3758 Km. So the average speed is roughly 902 Km.
There is an 3 hour time difference between Doha and Kathmandu
The best day to arrive at Doha is Thursday and it would be best to avoid Saturday, as prices are on average 470.8% higher than on Thursday. (Average prices, based on 113575 datapoints.)
We have a lot more statistics for flights H9 564 and between Doha and Kathmandu.