G7 3375 then AS 9912 at O'Hare
St Louis → Chicago → Columbus (Ohio)
Timetable, Chicago time
17:47G7 3375 from St Louis at the gate
15:30AS 9912 to Columbus (Ohio) leaves the gate
21 h 43 apart on the timetable, overnight
AS 9912 leaves 21 h 43 after G7 3375 arrives on the timetable: more than half a day, so not a connection we count.