Bus from Chaiyaphum to Udon

Hi,

New to the board, just wondering how long the bus ride from Chaiyaphum takes to get to Udon?

Thanks in advance,
Kev

I've never taken that bus bus i know the route, and i'm thinking 4-5 hours.

Thanks kevh, better than bussing it back to BKK to fly back to Perth

I did it about three years ago.It took about four and a half hours which includes two stops of about 15 mins at bus stations if you want to buy something to eat or go to the loo.
I think that the last bus from Chaiyaphum was about 3pm......very cheap.