Flight Lal Bahadur Shastri Airport departs from Varanasi Lal Bahadur Shastri Airport at 20:05 and arrives at Delhi Indira Gandhi International Airport at 21:45.
The flighttime is about 1h 40m. The distance travelled ("as the bird flies"): 642 Km. So the average speed is roughly 385 Km.
The best day to arrive at Varanasi is Monday and it would be best to avoid Friday, as prices are on average 68.74% higher than on Monday. (Average prices, based on 132100 datapoints.)
We have a lot more statistics for flights SG 2420 and between Varanasi and Delhi.