AA 1756 then UA 8243 at Denver
Dallas-Fort Worth → Denver → Cleveland
Timetable, Denver time
09:49AA 1756 from Dallas-Fort Worth at the gate
17:40UA 8243 to Cleveland leaves the gate
7 h 51 apart on the timetable
The last days
AA 1756 and UA 8243 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.