AA 1926 then CI 5235 at O'Hare
St Louis → Chicago → Seattle (SEA)
Timetable, Chicago time
09:00AA 1926 from St Louis at the gate
00:55CI 5235 to Seattle (SEA) leaves the gate
15 h 55 apart on the timetable, overnight
CI 5235 leaves 15 h 55 after AA 1926 arrives on the timetable: more than half a day, so not a connection we count.