Originally Posted by
flyerCO
AF/KLM offer DoD upgrades for cash or miles. You can upgrade before then, but it requires a higher economy fare class.
However if going to be stuck in economy I would go with AZ, then AF, and finally KLM. However AZ can be more expensive usually.
They are all approx. the same price (not worth choosing one over another based on the difference) so we will go with AZ. It will be a loooonnnnggg flight.
Off chance, would you know the range of miles or cash that they typically offer upgrades for on DoD? It's probably better to connect in FCO than CDG anyway. It was a mess when I was there a couple of weeks ago.