AA 1200 then K4 910 at O'Hare
Washington National → Chicago → Anchorage
Timetable, Chicago time
11:34AA 1200 from Washington National at the gate
00:30K4 910 to Anchorage leaves the gate
12 h 56 apart on the timetable, overnight
K4 910 leaves 12 h 56 after AA 1200 arrives on the timetable: more than half a day, so not a connection we count.