UA 2437 then BR 643 at O'Hare
Kansas City → Chicago → Anchorage
Timetable, Chicago time
13:15UA 2437 from Kansas City at the gate
11:55BR 643 to Anchorage leaves the gate
22 h 40 apart on the timetable, overnight
BR 643 leaves 22 h 40 after UA 2437 arrives on the timetable: more than half a day, so not a connection we count.