AF 4103 then U2 3806 at Charles de Gaulle
Nairobi → Paris → Milan
Timetable, Paris time
05:05AF 4103 from Nairobi at the gate
09:35U2 3806 to Milan leaves the gate
4 h 30 apart on the timetable
Charles de Gaulle’s board gives an arrival time for only about 46% of its flights, so many days show no gate time.
The last days
AF 4103 and U2 3806 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.