Originally Posted by
xliioper
So if OP is looking at booking ATL-ATH non-stop DL flights, there is no advantage to booking them on AF/KL websites.
One flight at which I was looking at has this as the outbound with a stop in Paris...
...and this as the return with a stop in Amsterdam.
Both Air France and KLM Royal Dutch Airlines offer this option as well as Delta Air Lines. Neither are non-stop either way.
The flights to and from the United States are operated by Delta Air Lines.