Passengers prefer frequency over aircraft size. DEL-BOM is like JFK-LAX. If capacity allows, airlines should (and do) fly 30 daily A320 instead of 10 daily A380

Passengers prefer frequency over aircraft size. DEL-BOM is like JFK-LAX. If capacity allows, airlines should (and do) fly 30 daily A320 instead of 10 daily A380. Fuel consumption of A320neo is lower (esp if you can push utilisation higher) so that there's no real reason to use A380. Runway capacity also isn't really, A320s (and B737) can be spaced very closely on approach and departure, up to a third of that of a A380.