JetStar cancelled flight VF 281 to KNO on Jan 16, 2014 claiming it’s unsafe due to volcanic activity (depart: 1040a SGT). In the mean time, SilkAir landed 2 flights on the same day (depart: 730a, 12p SGT) without any problems.
There have been rumours that it’s common for JetStar to cancel flights due low passenger load, I’m starting to believe it.
Home Jetstar Asia review by M 2014-01-16