Flight International Airport departs from Doha International Airport at 18:15 and arrives at Kuwait City Kuwait International Airport at 19:40.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 491 Km. So the average speed is roughly 347 Km.
The best day to arrive at Doha is Tuesday and it would be best to avoid Wednesday, as prices are on average 308.88% higher than on Tuesday. (Average prices, based on 103255 datapoints.)
We have a lot more statistics for flights KU 620 and between Doha and Kuwait City.