AA 331 then UA 2077 at DFW
Louisville → Dallas-Fort Worth → Denver
Timetable, Dallas-Fort Worth time
09:35AA 331 from Louisville at the gate
16:55UA 2077 to Denver leaves the gate
7 h 20 apart on the timetable
The last days
AA 331 and UA 2077 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.