Originally Posted by
irishguy28
That's why I would advise engaged flyers not to build strategies where their (re-)qualification depends on last-minute, potentially disrupted travel wherever possible. Travel in the dying days of December is always going to be risky, given what happens in both CDG and AMS if a snowflake shows up within 50 clicks (or, in AMS, if the wind gets above 5 knots!

)
But a "retro-claim" on a straightforward KLM flight can be initiated as soon as you land. Try it next time!

Or you don't build your strategy, just see what happens. As for December, it's Christmas. Always a heavy travel period in Europe. That is if your period even is calendar year based.
Automatic retroclaim on a straightforward KLM flight did not help when I got rerouted due to strike