FR 673 then FR 122 at Dublin
Lisbon → Dublin → London Gatwick
Timetable, Dublin time
23:20FR 673 from Lisbon at the gate
07:25FR 122 to London Gatwick leaves the gate
8 h 05 apart on the timetable, overnight
Dublin’s board gives an arrival time for only about 46% of its flights, so many days show no gate time.
The last days
FR 673 and FR 122 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.