KLM Royal Dutch Airlines Flight Check-In FAQ's
1. How long before the flight can I cancel my check-in? +
If in case you wish to cancel your check-in, you will have to do the process one hour before your scheduled departure time.
2. Can I cancel my flight after check-in? +
No, you won’t be able to cancel your flight after you’ve checked in. In order to do so, you will have to cancel your check-in first and then cancel your flight.