There is a substantial risk of misconnect. I would come in the night before. You can call UA and drop the SMF-SFO segment. Ask if they will waive the change fee because you are concerned about misconnecting with all the recent weather problems at SFO. Disregard advice above to the contrary, it is unsound.
Originally Posted by
fearless2357
You cannot drop the first leg and keep the same exact fare; your fare is always contingent on you keeping the same origin and final destination, even if you are flying one less flight.
It's an award flight. The fare is exactly the same.