KL 612 then 2L 9525 at Schiphol
Chicago → Amsterdam → Zurich
Timetable, Amsterdam time
07:15KL 612 from Chicago at the gate
10:002L 9525 to Zurich leaves the gate
2 h 45 apart on the timetable
The last days
KL 612 and 2L 9525 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.