How much does a Greyhound bus ticket cost from Reno NV to Ukiah CA?

Rather than give you a price that might change, let me direct you to Greyhound's web site, which will give you the current pricing and allow you to make reservations. It's in the "Related Links" section. (Another advantage of using their website: they've got a "web only" price that's currently about 15% cheaper than the standard fare for that particular trip.)