Getting from Orly to Paris
 

The way I read it I have to take a light rail to Anthony and then the RER B to St Michel
or
Take the RER C directly to St. Michel.
Taking the RER B. and the lightrail would be approx. 15 euros and the RER C approx. 7 euros.
It would seem like RER C would be the logical choice or am I missing something? First time arriving at Orly and am confused. Please help!

Orly is closer to Paris than Charles de Gaule a taxi is a good choice for me, also the AirvFrance bus is not a bad choice depending on your destination.

Second the taxi. It might be about 20E, depending on where to.

To complete the information on the difference between RER B and C, you first have to take a shuttle bus to the RER C station whereas the lightrail station is just outside the terminal

Orlyval + RER B = €10.90.

Airport shuttle bus to the Pont de Rungis RER station + the RER C = €6.50.

Parisian - if I take the shuttle to RER C then I will go directly to St.Michel?

All the options are at www.ratp.fr

Yes, the RER C goes directly from Pont de Rungis to Saint-Michel Notre-Dame.

Thank you all. So I think I'll take the shuttle to RER C to St.Michel. We will only have a carry on each.
I'll let you,know how,we make out. Traveling Oct. 6.