The odds are slim to none that Air France will even let you board in the U.S. There are a lot of examples published today of people over the past few days that have been turned away at the airport. They tried to argue that the airline sold them the ticket so they should be able to fly. And using excuses like...I have family there I need to visit. Neither are going to cut it.

There are exceptions for essential business with unique skills that require documentation etc from a EU firm, but even those are hit and miss from what I hear.

The only option that is solid is traveling to Croatia. You have to have a prepurchased room for the entire stay though and can't leave the country. People are reporting that the airlines tried to turn them away in the U.S. but when showing them the IATA listing for Croatia and the Govt information that Americans can travel there, they have been allowed to board.

So, in summary, if you can actually get on the plane you MIGHT make it through immigration on arrival. But the way things seem to be handled right now is that the airlines are blocking this in the U.S. and making sure you DON'T get on.