Originally Posted by
Xandrios
KLM Offers this during check in, IF they have spare business class seats. Does AF not do the same thing? Perhaps it works if you check in through klm.com?
KLM states that the can offer you a special deal to upgrade to C if there is large availibility via online check-in. However I've never experienced this, although I'm sometimes the very first or within the first 5 people to check in

I call it a mythe now