KL 672 then U2 2172 at Schiphol
Montréal → Amsterdam → Manchester
Timetable, Amsterdam time
08:25KL 672 from Montréal at the gate
14:55U2 2172 to Manchester leaves the gate
6 h 30 apart on the timetable
The last days
KL 672 and U2 2172 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.