Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 10:25 and arrives at Guwahati Lokpriya Gopinath Bordoloi International Airport at 12:45.
The flighttime is about 2h 20m. The distance travelled ("as the bird flies"): 1609 Km. So the average speed is roughly 690 Km.
The best day to arrive at Delhi is Thursday and it would be best to avoid Wednesday, as prices are on average 180.3% higher than on Thursday. (Average prices, based on 810664 datapoints.)
We have a lot more statistics for flights IX 1067 and between Delhi and Guwahati.