AA 3507 then 1I 605 at O'Hare
Moline → Chicago → St Louis
Timetable, Chicago time
07:25AA 3507 from Moline at the gate
11:301I 605 to St Louis leaves the gate
4 h 05 apart on the timetable
Today
From the airport’s board at 16:37 Chicago time
11:06AA 3507 reached the gate3 h 41 late
10:461I 605 left the gate44 min early
−20 min between the gates
The last days
AA 3507 and 1I 605 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.