AA 1578 then AA 4124 at DFW
Ontario → Dallas-Fort Worth → Midland
Timetable, Dallas-Fort Worth time
12:12AA 1578 from Ontario at the gate
16:02AA 4124 to Midland leaves the gate
3 h 50 apart on the timetable
The last days
AA 1578 and AA 4124 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.