[jimworcs]

Phx is right.. you entitled to compensation and you should make your claim directly to Air France. Write to Air France giving the details of your original booking and the amended booking. Claim the payment under your EU rights under European Directive 261/2004. State specifically in your letter that you are making this claim under this directive. Any compensation you have received from Delta or any other source does not affect your right to claim this money.

It is possible the reason Delta compensated you is that this change was brought about by them. Delta have recently concluded an agreement with Olympic Airways to operate the route as a code-share with them. Olympic Airways is dropping all it's long haul flights as part of a re-structuring following their bankruptcy. As these flights are being combined, this may be why there are capacity problems on the route. Air France was only acting as a sale agent for Delta, but is ultimately responsible.