Flurries caused more than 50 flights to be grounded Monday morning, according to the airport.
No one was hurt when passengers exited the plane on the runway Wednesday afternoon.
Parking rates in the city are among the highest compared to other major U.S. metro areas, according to a new report.
Metra said it will save hundreds of thousands of dollars by no longer selling tickets through its website.
No injuries have been reported from the falling debris Thursday, the Chicago Fire Department said.
A new study found local drivers spent an average of 57 hours stuck in traffic last year.