How to get Paris from Orly

You have several options for transport to Paris from Orly Airport:

• The RER B (suburban train) connects to Orly airport via the Orlyval airport train. Follow the signs from Orly Ouest or Orly Sud to "Orlyval", then from the Antony train station, connect to the RER B, direction Paris. If need be, you can then connect to the Paris metro at stations Denfert Rochereau, Saint-Michel, Chatelet-les-Halles, or Gare du Nord.
  Departs: every 7-10 minutes, from 6:00 a.m. to 11:00 p.m.
  Price: 9.60 Euros (note that you must buy a special ticket from an RATP ticketer at the airport).

• The RER C (suburban train) connects to Orly Airport via shuttles that leave from the Porte de Rungis station. From the airport, take a shuttle to Porte de Rungis, then the RER C to Paris.
  Departs: Shuttles for Porte de Rungis leave every 15 minutes, 5:45 a.m.- 11:15 p.m., from gate G- quai 1 at Orly Sud and from the arrival level at Orly Ouest.
  Price: 5.65 Euros each way (approx. $7.50)

• The Orlybus is a direct bus run by the RATP (metro) connecting Orly Airport to Denfert Rochereau in southern Paris.
  Departs: Every 15 minutes, 5:35 a.m. to 11:00 p.m. from Orly Sud and Orly Ouest. Trip takes about 25 minutes.
  Price: 6.30 Euros

• Air France shuttles depart from Orly Ouest and Orly Sud and stop at metro stations Porte d'Orleans, Montparnasse, and Invalides.
  Departs: Every 15 minutes, from 6:00 a.m. to 11:30 p.m.
  Price:
  Adults: 9 Euros one-way, 14 Euros round-trip
  Children 2 to 11: 4.50 Euros
  Group discounts: 15% off for groups over 4 people

• Taxis depart regularly from Orly Sud and Orly Ouest. the average fare to Paris is 20-30 Euros.