Flight Changi Airport departs from Singapore Changi Airport at 11:30 and arrives at Chennai Chennai International Airport at 13:10.
The flighttime is about 4h 10m. The distance travelled ("as the bird flies"): 2634 Km. So the average speed is roughly 632 Km.
There is an 2.5 hour time difference between Singapore and Chennai
The best day to arrive at Singapore is Sunday and it would be best to avoid Thursday, as prices are on average 194.98% higher than on Sunday. (Average prices, based on 486360 datapoints.)
We have a lot more statistics for flights 6E 1004 and between Singapore and Chennai.