FR 839 then FR 561 at Manchester
Porto → Manchester → Dublin
Timetable, Manchester time
10:20FR 839 from Porto at the gate
12:00FR 561 to Dublin leaves the gate
1 h 40 apart on the timetable
The last days
FR 839 and FR 561 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.