W4 7039 then W4 6021 at Fiumicino
Milan → Rome → Barcelona
Timetable, Rome time
09:00W4 7039 from Milan at the gate
12:40W4 6021 to Barcelona leaves the gate
3 h 40 apart on the timetable
Fiumicino’s board shows about 63% of departures at their timetable time, so delays of a few minutes don’t show here.
The last days
W4 7039 and W4 6021 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.