AA 1731 then UA 3681 at DFW
Louisville → Dallas-Fort Worth → Newark
Timetable, Dallas-Fort Worth time
07:39AA 1731 from Louisville at the gate
16:48UA 3681 to Newark leaves the gate
9 h 09 apart on the timetable
The last days
AA 1731 and UA 3681 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.