BY 237 then U2 2171 at Manchester
Dalaman → Manchester → Amsterdam
Timetable, Manchester time
03:20BY 237 from Dalaman at the gate
11:55U2 2171 to Amsterdam leaves the gate
8 h 35 apart on the timetable
The last days
BY 237 and U2 2171 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.