Flight Tribhuvan International Airport departs from Kathmandu Tribhuvan International Airport at 21:25 and arrives at Surabaya Juanda International Airport at 11:50.The flight has a short stop at Kuala Lumpur.
The flighttime is about 13h 25m. The distance travelled ("as the bird flies"): 2969 Km. So the average speed is roughly 221 Km.
There is an 1 hour time difference between Kathmandu and Surabaya
The best day to arrive at Kathmandu is Tuesday and it would be best to avoid Sunday, as prices are on average 184.18% higher than on Tuesday. (Average prices, based on 35979 datapoints.)
We have a lot more statistics for flights OD 181 and between Kathmandu and Surabaya.