Originally Posted by
JDiver
Without further checking from here right now (I'll do so later) the easiest might be MEX to Puebla and on to Huajuapan de León from the terminal there. Theravada would be possible, but I think you'd be in for a terminal change.
OK, been digging some more. Looks like there is direct service from TAPO to HUajuapan, so it'd be a matter of finding my way to TAPO, and get on the bus there.
Would going through Puebla be preferable for some reason?