Most direct and economical. Trains every 10–15 minutes, 40-minute ride, $2.50. Follow signs to CTA station, buy ticket, board toward Forest Park, exit at Clark/Lake.
Private shuttle, every 15 minutes, 45-minute ride, $17. Board at designated stop, exit at Union Station.
30–40 minutes, $30–$50. Pick up at taxi stand or rideshare zone.
Choose based on budget, luggage, and time preference.