This blurb was posted on Facebook by Kan Air...not sure if it's the real thing, but if it is, there will be flights from Utapao to Ubon, Udon, Chiang Mai, and Khon Kaen.
I am going to take the bus to Khon Kaen (and I DO know it is a long trip - and I might fly on the other way). As far as I have been able to find out there are 2 companies having VIP buses to KK from Pattaya - and that is Chan Tours and 407. They both go at approximately the same time - and both uses 9 hours for the trip. Chan Tours is 100 baht cheaper - but both are really cheap so that is not a concern. Can anyone here say which bus is the nicest - or do I just have to trust that since 407 cost the most it is also the best ?