Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 09:00 and arrives at Singapore Changi Airport at 17:25.
The flighttime is about 5h 55m. The distance travelled ("as the bird flies"): 2903 Km. So the average speed is roughly 491 Km.
There is an 2.5 hour time difference between Delhi and Singapore
The best month to arrive at Delhi is July and the most expensive month to fly is January. (Average prices, based on 308 datapoints.)
The best day to arrive at Delhi is Monday and it would be best to avoid Tuesday, as prices are on average 385.58% higher than on Monday. (Average prices, based on 62551 datapoints.)
We have a lot more statistics for flights SQ 401 and between Delhi and Singapore.