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 Lombok is June and the most expensive month to fly is December. (Average prices, based on 1022 datapoints.)
The best day to arrive at Kuala Lumpur is Monday and it would be best to avoid Wednesday, as prices are on average 43.3% higher than on Monday. (Average prices, based on 1024 datapoints.)