Please be aware that Kuala Lumpur has multiple airports and that these results are for all airports serving the city.
The best month to fly between Kuala Lumpur and Delhi is February and the most expensive month to fly is June. (Average prices, based on 3778 datapoints.)
The cheapest airline flying from Kuala Lumpur to Delhi is AirAsia X. They are 52% cheaper than MasWings. (Average prices, based on 3784 datapoints.)