AA 3488 then AA 939 at DFW
Lubbock → Dallas-Fort Worth → San Francisco
Timetable, Dallas-Fort Worth time
16:55AA 3488 from Lubbock at the gate
20:38AA 939 to San Francisco leaves the gate
3 h 43 apart on the timetable
The last days
AA 3488 and AA 939 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.