Tagging onto this.
Coming into/departing Union Station. Which blue line stop closest to US? Also, headed from US to ORD on Friday. How much, & cash or credit? Return on Sunday from ORD to US. How much, & cash or credit? I seem to remember the fares are different & can't remember if you need cash for both, credit for both, or cash one way & credit the other.
Cheers.