How do I get from Hotel de l'avre (right by La Motte-Picquet Grenelle station) to Orly airport using the metro??? Thanks-you Sarah
Cheapest: Take Metro line 6 to Place d'Italie. Take Metro line 7 to Villejuif-Louis Aragon. Take bus 285 to Orly.
A little faster but still cheap: Take Metro line 6 to Denfert-Rochereau. Take the Orlybus from there to the airport.
Fastest but most expensive: Take Metro line 6 to Denfert-Rochereau, the RER B to Antony, and the Orlyval driverless shuttle train from there to the airport.
See this zoomable map of the Metro and RER system for central Paris.