Flight Changi Airport departs from Singapore Changi Airport at 08:35 and arrives at Delhi Indira Gandhi International Airport at 11:50.
The flighttime is about 5h 45m. The distance travelled ("as the bird flies"): 2903 Km. So the average speed is roughly 505 Km.
There is an 2.5 hour time difference between Singapore and Delhi
The best day to arrive at Singapore is Wednesday and it would be best to avoid Friday, as prices are on average 358.88% higher than on Wednesday. (Average prices, based on 305703 datapoints.)
We have a lot more statistics for flights AI 381 and between Singapore and Delhi.