AF 57 then U2 3816 at Charles de Gaulle
Las Vegas → Paris → Milan
Timetable, Paris time
10:50AF 57 from Las Vegas at the gate
14:20U2 3816 to Milan leaves the gate
3 h 30 apart on the timetable
Charles de Gaulle’s board gives an arrival time for only about 57% of its flights, so many days show no gate time.
The last days
AF 57 and U2 3816 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.