AC 7035 then WN 3356 at Denver
Calgary → Denver → Atlanta
Timetable, Denver time
00:05AC 7035 from Calgary at the gate
06:15WN 3356 to Atlanta leaves the gate
6 h 10 apart on the timetable
The last days
AC 7035 and WN 3356 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.