UL 563 then BA 309 at Charles de Gaulle
Colombo → Paris → London Heathrow
Timetable, Paris time
07:30UL 563 from Colombo at the gate
14:30BA 309 to London Heathrow leaves the gate
7 h 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
UL 563 and BA 309 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.