BY 2457 then U2 7852 at Manchester
Heraklion → Manchester → Amsterdam
Timetable, Manchester time
02:20BY 2457 from Heraklion at the gate
09:00U2 7852 to Amsterdam leaves the gate
6 h 40 apart on the timetable
The last days
BY 2457 and U2 7852 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.