KL 640 then SK 6706 at Schiphol
San Diego → Amsterdam → Madrid
Timetable, Amsterdam time
09:40KL 640 from San Diego at the gate
13:35SK 6706 to Madrid leaves the gate
3 h 55 apart on the timetable
The last days
KL 640 and SK 6706 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.