The journey from Berwyn to San Francisco is a cross-country trip of approximately 3,400 kilometers. Flying is the only practical mode of transport, with direct flights from O'Hare to San Francisco International Airport. Driving is a massive undertaking that takes 35 to 40 hours of active driving time and is best suited for a multi-day road trip. San Francisco is a dense, hilly city where public transit (MUNI and BART) is highly effective, making a car unnecessary for most visitors.
Total Distance: 3,400 km driving distance; 3,000 km straight-line air distance.
BART trains run directly from SFO to downtown San Francisco.
September to November for the best weather and fewer crowds.