AA 3980 then F9 3129 at Detroit
Chicago O'Hare → Detroit → Dallas-Fort Worth
Timetable, Detroit time
16:09AA 3980 from Chicago O'Hare at the gate
19:37F9 3129 to Dallas-Fort Worth leaves the gate
3 h 28 apart on the timetable
The last days
AA 3980 and F9 3129 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.