About how long should it take to drive in from Manteca to SFO, to catch a 1:00PM flight on a Tuesday?
It should take about 1.5 hours. Great time for a flight as you will miss commute traffic.
The drive via the San Mateo Bridge should take approx 1 1/2 hours. Allow 90 minutes for domestic check-in and 15-30minutes to check in your rental. It is in a different building. You take a people mover to get to the terminals. The time assumes no traffic problems, which in the bay area, is never a given. Be conservative in your estimate.