K4 785 then AA 3239 at O'Hare
Anchorage → Chicago → Pittsburgh
Timetable, Chicago time
12:32K4 785 from Anchorage at the gate
12:29AA 3239 to Pittsburgh leaves the gate
23 h 57 apart on the timetable, overnight
AA 3239 leaves 23 h 57 after K4 785 arrives on the timetable: more than half a day, so not a connection we count.