Originally Posted by
fliesdelta
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?
The only reason you would consider going through Puebla is, as I mentioned in my previous post, because there is a direct bus from MEX airport to Puebla, which eliminates the need to get to TAPO. Depending on the length of layover in Puebla, though, it may be more desirable to get to TAPO (see my previous post for instructions) and take the direct bus to Huajuapan from there.