Our Batik flight from Jakarta to Sorong left an hour early. We made the flight but just. Our flight from Sorong to Jakarta was cancelled without notice. We were rerouted from Sorong to Makassar on a flight that left early and then had to catch another Batik flight to Jakarta. Batik was well organized to rush us through but it was a little nerve racking. I would suggest you confirm your flights with this airline the night before or the morning of, if you can.