AA 4039 then AA 5621 at DFW
Abilene → Dallas-Fort Worth → Midland
Timetable, Dallas-Fort Worth time
11:52AA 4039 from Abilene at the gate
12:32AA 5621 to Midland leaves the gate
40 min apart on the timetable
The last days
AA 4039 and AA 5621 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.