CD 5999 then KL 991 at Schiphol
Willemstad → Amsterdam → London City
Timetable, Amsterdam time
11:00CD 5999 from Willemstad at the gate
17:20KL 991 to London City leaves the gate
6 h 20 apart on the timetable
The last days
CD 5999 and KL 991 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.