From
San Francisco
Best option
Caltrain → VTA Orange Line
Catch Caltrain at 4th/King, ride south to Mountain View (roughly 45 min on a Baby Bullet), then transfer to VTA Light Rail — take the Orange Line heading toward Mountain View and get off at Great America station. Five-minute walk to the gates. No traffic, no parking, and lets you buy beer on the train back. This is the cleanest way from the city.
Rideshare
45–70 min without traffic; expect 2–3x surge pricing post-match.
Drive
Not recommended. 101 South backs up for hours before kickoff. Parking $60+.