a VirtualTourist member
how many hour by bus?, are there straight buses?
I do not think there are any direct buses, but if there are they might take 10 to 12 hours for the journey.
My advise: take the train to Purwokerto and there find a bus to Wonosobo.
6-7 hours by bus including traffic jam.
Name of the bus is Dedi Jaya, depart from Pulogadung or Lebakbulus bus terminus.
usually at afternoon
Be ready for "crazy" trip because Dedi Jaya driver is popular as "a racer" :)