Spicejet (and another LCC, Paramount, that flies Embraers, mostly in south india on secondary routes) have a very small fleet.
So what they do is schedule maybe one flight a day and time it so that it is just after the morning flights of the regular airlines like IC / 9W, or late night flights after the last IC / 9W flights leave.
This basically means that a lot of people who couldnt be ticketed on that flight, or missed it by being stuck in traffic etc can ticket on the LCC (and in some cases get the airline to endorse their tickets to the LCC)
Of course seat pitch being rather less than regular carriers, and all Y instead of two class, means they can pack in rather more pax per flight.
And they can outsource a ton of their stuff (dont need a dedicated maintenance plant etc with such a tiny fleet)
Originally Posted by enjoystravel
The LCCs in India still puzzle me. In the US, when WN pursued the low cost model, it used secondary airports where the airport fee were lower and cost models were different with employee stock options, no defined benefits pensions, etc. It is not clear to me what edge Spicejet or AirDeccan has on the cost side. Air Deccan at least uses non fare revenues to bolster revenue but Spicejet does not seem to have any other significant revenue sources besides fares.