AA 1489 then QF 3770 at San Francisco
Charlotte → San Francisco → Los Angeles
Timetable, San Francisco time
15:43AA 1489 from Charlotte at the gate
20:08QF 3770 to Los Angeles leaves the gate
4 h 25 apart on the timetable
The last days
AA 1489 and QF 3770 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.