Thanks for the info. I was able to see the schedule on my iPhone, that Norton message just worries me as I don't know if someone hacked the Express Air site.
It is a worry that we can't book until 30 days, if anything goes wrong we wouldn't be able to get cheap alternatives. It really surprises me that it is so difficult to get from DJJ to the western side of West Papua. We can get back to UPG on Garuda for around $60 each if we book more than 6 months in advance and there are 2 flights daily, we would get the morning one, spend the day in Makassar looking around and then get either Sriwijaya or Batavia to SOQ at 4am. There doesn't appear to be an airport hotel at UPG and it is far from the town so I guess we just have to go there late at night and wait. I did email Mau Ke Mana for a quote to price compare. I don't expect this flight to be cheap as they have a monopoly on the route.