The best month to arrive at Miri is May and the most expensive month to fly is December. (Average prices, based on 560 datapoints.)
The best day to arrive at Miri is Wednesday and it would be best to avoid Monday, as prices are on average 68.21% higher than on Wednesday. (Average prices, based on 560 datapoints.)
The cheapest airline flying to Miri is FireFly. They are 49% cheaper than MasWings. (Average prices, based on 576 datapoints.)