CV 21 then AA 3484 at O'Hare
Anchorage → Chicago → St Louis
Timetable, Chicago time
01:25CV 21 from Anchorage at the gate
15:20AA 3484 to St Louis leaves the gate
13 h 55 apart on the timetable
AA 3484 leaves 13 h 55 after CV 21 arrives on the timetable: more than half a day, so not a connection we count.