Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 09:55 and arrives at Doha International Airport at 11:50.
The flighttime is about 4h 25m. The distance travelled ("as the bird flies"): 2844 Km. So the average speed is roughly 644 Km.
There is an 2.5 hour time difference between Delhi and Doha
The best day to arrive at Delhi is Monday and it would be best to avoid Sunday, as prices are on average 408.79% higher than on Monday. (Average prices, based on 134354 datapoints.)
We have a lot more statistics for flights QR 571 and between Delhi and Doha.