CI 5226 then UA 4576 at O'Hare
Anchorage → Chicago → St Louis
Timetable, Chicago time
06:25CI 5226 from Anchorage at the gate
22:00UA 4576 to St Louis leaves the gate
15 h 35 apart on the timetable
UA 4576 leaves 15 h 35 after CI 5226 arrives on the timetable: more than half a day, so not a connection we count.