AM 412 then AA 1055 at Miami
Mexico City → Miami → Dallas-Fort Worth
Timetable, Miami time
11:41AM 412 from Mexico City at the gate
18:30AA 1055 to Dallas-Fort Worth leaves the gate
6 h 49 apart on the timetable
The last days
AM 412 and AA 1055 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.