K4 557 then AA 3484 at O'Hare
Anchorage → Chicago → St Louis
Timetable, Chicago time
14:14K4 557 from Anchorage at the gate
09:30AA 3484 to St Louis leaves the gate
19 h 16 apart on the timetable, overnight
AA 3484 leaves 19 h 16 after K4 557 arrives on the timetable: more than half a day, so not a connection we count.