Flight International Airport departs from Doha International Airport at 19:50 and arrives at Colombo Bandaranaike International Airport at 03:25.
The flighttime is about 5h 05m. The distance travelled ("as the bird flies"): 3220 Km. So the average speed is roughly 633 Km.
There is an 2.5 hour time difference between Doha and Colombo
The best day to arrive at Doha is Friday and it would be best to avoid Thursday, as prices are on average 121.17% higher than on Friday. (Average prices, based on 82004 datapoints.)
We have a lot more statistics for flights QR 658 and between Doha and Colombo.