Originally Posted by Billyfergus

From KLM Website:-

Rebook your flight

While most of our schedule is not impacted by the outbreak of the Coronavirus, we are extending the rebooking possibilities to all our flights.

If you have a KLM ticket starting with 074, issued on or before Tuesday 31 March 2020, and valid for travel between Wednesday 4 March 2020 and Sunday 31 May 2020, regardless of the destination, you can postpone your trip at no extra cost. View your flight details or change your booking directly in My Trip.