For Fremont, particularly towards the south side, SJC is even closer than OAK. If your ground transportation plans include renting a car, it'll also be faster at SJC (the shuttle bus to the OAK rental car center adds a substantial delay). The route is served by Delta, American, and Southwest, but with fewer options that meet your schedule. With a moderate amount of luck, the option I'd choose is DL1644, 8:10-9:32.