AA 2645 then AA 4923 at Houston
Chicago → Houston → Los Angeles
Timetable, Houston time
13:30AA 2645 from Chicago at the gate
15:23AA 4923 to Los Angeles leaves the gate
1 h 53 apart on the timetable
The last days
AA 2645 and AA 4923 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.