AA 5340 then AA 3475 at O'Hare
Knoxville → Chicago → Appleton
Timetable, Chicago time
09:10AA 5340 from Knoxville at the gate
09:48AA 3475 to Appleton leaves the gate
38 min apart on the timetable
The last days
AA 5340 and AA 3475 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.