Practical information about Khon Kaen
Khon Kaen is accessible by plane, train or bus and from there you can reach by bus just almost every corner of Thailand. There is a large local bus network (songtahews with numbers) that can take you for a few baths throughout the city. And there are tuk-tuks also like everywhere in Thailand.
It is better to have a car or a motobike when you visit Khon Kaen because there are many interesting places in the area such as archaeological sites, amazing rock formations or beautiful temples with nice exterior paints that are not very easy access by public transportation. So if you want to enjoy everything Kohan kaen province has to offer, it is better to have your own mean of locomotion.
In bangkok, buses to Khon Kaen leave from Mochit Northern Bus Terminal abs=d take 6h30 to come (online booking available on this website