FR 7851 then FR 554 at Dublin
Cardiff → Dublin → Manchester
Timetable, Dublin time
00:50FR 7851 from Cardiff at the gate
07:25FR 554 to Manchester leaves the gate
6 h 35 apart on the timetable
Dublin’s board gives an arrival time for only about 43% of its flights, so many days show no gate time.
The last days
FR 7851 and FR 554 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.