AA 4757 then K4 996 at O'Hare
Pittsburgh → Chicago → Anchorage
Timetable, Chicago time
14:03AA 4757 from Pittsburgh at the gate
03:45K4 996 to Anchorage leaves the gate
13 h 42 apart on the timetable, overnight
K4 996 leaves 13 h 42 after AA 4757 arrives on the timetable: more than half a day, so not a connection we count.