WN 3525 then UA 2001 at Denver
Chicago Midway → Denver → Cedar Rapids
Timetable, Denver time
20:20WN 3525 from Chicago Midway at the gate
18:00UA 2001 to Cedar Rapids leaves the gate
21 h 40 apart on the timetable, overnight
UA 2001 leaves 21 h 40 after WN 3525 arrives on the timetable: more than half a day, so not a connection we count.