AA 6276 then AA 2387 at San Francisco
Phoenix → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
10:03AA 6276 from Phoenix at the gatealso QR 9504
14:01AA 2387 to Dallas-Fort Worth leaves the gatealso QF 3158, IB 4166, G3 6173, RJ 7624
3 h 58 apart on the timetable
The last days
AA 6276 and AA 2387 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.