Originally Posted by
CosmicGirl
Except that it is unlikely that €s spent on taxes and/or charges would count, so that €99 fare would translate to, say, a €58 base fare on AMS-BCN-AMS for instance. That's why I asked about the asterisk.
My next trip to LHR - in 2018 as it happens! - has a base fare of just €35 from a total price of €99.19
So instead of the 300 miles the KL website tells me this would stand to earn just €35*4 = 140 miles.