AA 3487 then AA 6282 at O'Hare
Missoula → Chicago → Milwaukee
Timetable, Chicago time
18:25AA 3487 from Missoula at the gate
18:56AA 6282 to Milwaukee leaves the gate
31 min apart on the timetable
The last days
AA 3487 and AA 6282 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.