AA 4189 then AA 1114 at O'Hare
Missoula → Chicago → Los Angeles
Timetable, Chicago time
17:52AA 4189 from Missoula at the gate
20:30AA 1114 to Los Angeles leaves the gate
2 h 38 apart on the timetable
The last days
AA 4189 and AA 1114 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.