AA 804 then F9 3990 at DFW
Oaxaca → Dallas-Fort Worth → Detroit
Timetable, Dallas-Fort Worth time
15:15AA 804 from Oaxaca at the gate
14:55F9 3990 to Detroit leaves the gate
23 h 40 apart on the timetable, overnight
F9 3990 leaves 23 h 40 after AA 804 arrives on the timetable: more than half a day, so not a connection we count.