From Rockford taxi to Rockford, IL - Clock Tower then bus to Chicago, IL - O'Hare International Airport. 1 h 20 min. From Rockford taxi to Rockford, bus to Cumberland, then subway to O'Hare. 1 h 26 min $63. From Rockford drive to Chicago O'Hare Airport (ORD). 1 h 23 min $8. From Rockford towncar to Chicago O'Hare Airport. 1 h 23 min $228.