Flight Changi Airport departs from Singapore Changi Airport at 18:55 and arrives at Kathmandu Tribhuvan International Airport at 22:10.
The flighttime is about 5h 15m. The distance travelled ("as the bird flies"): 2030 Km. So the average speed is roughly 387 Km.
There is an 2 hour time difference between Singapore and Kathmandu
The best day to arrive at Singapore is Sunday and it would be best to avoid Monday, as prices are on average 47.34% higher than on Sunday. (Average prices, based on 46692 datapoints.)
We have a lot more statistics for flights SQ 5416 and between Singapore and Kathmandu.