AA 3157 then AA 6221 at DFW
Houston → Dallas-Fort Worth → Tulsa
Timetable, Dallas-Fort Worth time
13:29AA 3157 from Houston at the gate
14:12AA 6221 to Tulsa leaves the gate
43 min apart on the timetable
The last days
AA 3157 and AA 6221 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.