Sibu - Miri Transport Questions

Anyone know what are the daily bus times available from Sibu to Miri and how long will the journey takes ?

I need to arrive Miri airport to catch the 1.10 pm flight to Mulu.

Shall I leave Sibu 1 day ahead or leave Sibu on the same day in the morning ?

Or is there anu Sibu - Miri flights ?

Thanks

FlyAsianXpress (the Air Asian subsidiary) has an 08:15 and 18:15 (6:15 PM) flight from Sibu to Miri, though this subsidiary often has equipment problems and cancels flights.

FlyAsianXpress

Not sure if you could get to Miri by morning bus in time. But you have the evening before and next morning options, it seems.

Thanks, RedApe,

Looks like I cannot risk trying those flights.

I am free from Sibu the night before. I tried all sites on Sibu bus to Miri but none can provide me with useful details. Do you happen to know of any websites or bus Companies that I can try ?