KL 668 then HV 6869 at Schiphol
Austin → Amsterdam → Athens
Timetable, Amsterdam time
10:25KL 668 from Austin at the gate
16:20HV 6869 to Athens leaves the gate
5 h 55 apart on the timetable
The last days
KL 668 and HV 6869 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.