No way I'd risk that! Book earlier flight - out of SJC or SFO, whatever.

If your luck is anything like mine, we'd leave SJC 10 minutes late, it would take 10 minutes to get off the plane at IAH, you'd spend 10 minutes trying to figure out which terminal you're in and how to get to the other one and by the time you'd done all that the CDG flight will have closed.

Is this flight much cheaper than AF from SFO?