UA 1178 then BR 643 at O'Hare
Cleveland → Chicago → Anchorage
Timetable, Chicago time
14:54UA 1178 from Cleveland at the gate
14:50BR 643 to Anchorage leaves the gate
23 h 56 apart on the timetable, overnight
BR 643 leaves 23 h 56 after UA 1178 arrives on the timetable: more than half a day, so not a connection we count.