In the comments to my primer on using FlightStats.com to find available flights (both revenue flights that have availability when you face irregular operations in your travels, and award space on several airlines as well), worldtraveler2018 asks:
Gary, Is it correct to say that Air France no longer shows Business Class Award fare class O anymore (e.g., thru ExpertFlyer)? I checked ExpertFlyer for JFK-CDG flights on 12/24 and don’t see any O fare, but I found Business Class award space at airfrance.com.
“O” is business class award and upgrade space on Air France. Historically it has been viewable at FlightStats.com and also at Expertflyer.
Unfortunately it seems that ‘O’ inventory no longer shows up in either place for Air France transatlantic flights. It does still show on other routes such as intra-Europe flying and Paris-Asia.
And it also still shows up at AirFrance.us which for many will be the easiest way to find he space.
Unfortunately award space that appears on Air France’s website is no longer always bookable by Delta. But it’s bookable with Air France’s own Flying Blue miles, and points transfer from American Express Membership Rewards instantaneously.
Luckily, Air France is one of the few partner airlines whose award space will show up on the (very broken) Delta.com website. Just study up on How to Make Delta’s Skypesos Work for You and you’ll find the search process for those seats a bit easier.