UA 1246 then AA 2386 at Charlotte
Denver → Charlotte → Cedar Rapids
Timetable, Charlotte time
21:29UA 1246 from Denver at the gate
19:40AA 2386 to Cedar Rapids leaves the gate
22 h 11 apart on the timetable, overnight
AA 2386 leaves 22 h 11 after UA 1246 arrives on the timetable: more than half a day, so not a connection we count.