FlyRow wrote:O&D is indeed served via Thalys, but HV does fly to Paris Orly I believe.
Very true. Air France and KLM have a duopoly on the Amsterdam - Charles de Gaulle route. Until Transavia started Orly - Amsterdam this route was unserved.
By the way, some connecting traffic is also routed on the train. Both airports got a train station that is served on the Thalys and the trains got a flight number that can be included in a booking with Air France-KLM. This is specially done to attract Belgian customers who can start their journey in Brussels. They take the train to Amsterdam or Paris and then connect to their flight, all on the same ticket.
However Amsterdam is the only airport in the Netherlands that has flights to Paris. You'd expect Rotterdam or Eindhoven to have a connection to either Charles de Gaulle or Orly, but no. If you do a search for flights from Eindhoven to Paris you're routed through Amsterdam. First on the KLM bus that links Maastricht and Eindhoven to Schiphol and then on either a flight or a train to Paris.