You should have access. Maybe print this page?

Flying Blue Gold and Platinum or SkyTeam Elite Plus
You and a guest of your choice can take advantage of free entry to the 530 Air France and SkyTeam lounges.

You have access to the lounges when you travel:
on an AIR FRANCE, KLM, or SkyTeam international flight,
on an Air France flight within Paris that departs from Paris-Charles de Gaulle, Paris-Orly West and airports in certain select cities,
on a KLM flight within the Netherlands that departs from Amsterdam-Schiphol,
on a SkyTeam flight within one country that connects to a SkyTeam international flight on the same day,
upon arrival on a long-haul SkyTeam flight to Paris-Charles de Gaulle Terminal 2C,
upon arrival on a SkyTeam international flight to Amsterdam-Schiphol (KLM Crown Lounges), Dubai, Glasgow, Houston, Johannesburg, and Toronto.

http://www.airfrance.us/US/en/common/guidevoyageur/aeroport/salon_presentation_airfrance.htm