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 Tiruchirapalli is March and the most expensive month to fly is May. (Average prices, based on 29528 datapoints.)
The best day to arrive at Kuala Lumpur is Tuesday and it would be best to avoid Saturday, as prices are on average 16% higher than on Tuesday. (Average prices, based on 29524 datapoints.)