UA 2124 then K4 996 at O'Hare
Houston → Chicago → Anchorage
Timetable, Chicago time
12:29UA 2124 from Houston at the gate
04:15K4 996 to Anchorage leaves the gate
15 h 46 apart on the timetable, overnight
K4 996 leaves 15 h 46 after UA 2124 arrives on the timetable: more than half a day, so not a connection we count.