UA 560 then AF 2104 at Newark
St Louis → New York → Atlanta
Timetable, New York time
13:20UA 560 from St Louis at the gate
15:21AF 2104 to Atlanta leaves the gate
2 h 01 apart on the timetable
The last days
UA 560 and AF 2104 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.