Verified answer

This may not be of much help if you are already booked on a flight to SFO, but it is much easier to get to Santa Cruz from SJC (San Jose Airport).

A good option from there is a taxi to Amtrak station (very short ride), and Amtrak bus.

If there is a way to get down to San Jose from SFO,

that might work.

Years ago Greyhound did pick up at SFO,

but I guess they discontinued that.

I took the Santa Cruz Airporter from San Jose once,

and the van was not in very good condition and they

made sure every seat was filled. I was not very

impressed.

Here are directions from UC Santa Cruz:

http://ling.ucsc.edu/~cgsw/directions.html

(also has San Jose and driving directions)

To get from SFO to Santa Cruz via public transportation, take BART from the SFO BART Station to the Millbrae BART Station ($1.50 for a one-way ticket). Transfer to Caltrain, and go Southbound to San Jose Diridon Station ($5 for a one-way ticket). Take the Highway 17 Express from Diridon Station to the Santa Cruz Metro Center ($4 for a one-way ticket).

(Yes that's a lot of transfers).