Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 14:00 and arrives at Bagdogra Bagdogra Airport at 16:00.
The flighttime is about 2h 00m. The distance travelled ("as the bird flies"): 1247 Km. So the average speed is roughly 624 Km.
The best day to arrive at Delhi is Monday and it would be best to avoid Wednesday, as prices are on average 10591.55% higher than on Monday. (Average prices, based on 295464 datapoints.)
We have a lot more statistics for flights AI 851 and between Delhi and Bagdogra.