AA 1858 then DL 5626 at Charlotte
Omaha → Charlotte → Boston
Timetable, Charlotte time
09:55AA 1858 from Omaha at the gate
09:50DL 5626 to Boston leaves the gate
23 h 55 apart on the timetable, overnight
DL 5626 leaves 23 h 55 after AA 1858 arrives on the timetable: more than half a day, so not a connection we count.