Originally Posted by
mithcc
Does anyone knows when KLM/Delta/AF tends to lower their prices? It's just to get an idea...
They tend to "lower their prices" only during some kind of sale/promotion period, and it sounds like you just missed out on a sale.
Given that your travel is so soon, and during the busy summer holiday season, I would say the chances of prices coming down again are slim to remote.
(Going from €500 to €1000 is, though, quite a jump. Are you sure the first price mentioned was correct?)