AA 402 then AA 3990 at DFW
San Francisco → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
11:14AA 402 from San Francisco at the gate
21:20AA 3990 to Amarillo leaves the gate
10 h 06 apart on the timetable
The last days
AA 402 and AA 3990 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.