FR 797 then FR 552 at Dublin
Riga → Dublin → Manchester
Timetable, Dublin time
00:45FR 797 from Riga at the gate
07:25FR 552 to Manchester leaves the gate
6 h 40 apart on the timetable
Dublin’s board gives an arrival time for only about 47% of its flights, so many days show no gate time.
The last days
FR 797 and FR 552 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.