Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 17:55 and arrives at Goa Dabolim International Airport at 20:35.
The flighttime is about 2h 40m. The distance travelled ("as the bird flies"): 516 Km. So the average speed is roughly 194 Km.
The best day to arrive at Delhi is Saturday and it would be best to avoid Wednesday, as prices are on average 39.66% higher than on Saturday. (Average prices, based on 978663 datapoints.)
We have a lot more statistics for flights SG 8144 and between Delhi and Goa.