DL 2804 then UA 457 at O'Hare
Boston → Chicago → Cleveland
Timetable, Chicago time
22:36DL 2804 from Boston at the gate
21:36UA 457 to Cleveland leaves the gate
23 h apart on the timetable, overnight
UA 457 leaves 23 h after DL 2804 arrives on the timetable: more than half a day, so not a connection we count.