Take the RER B train (direction Saint-Rémy-lès-Chevreuse) to either

a) the station Massy-Palaiseau and then the bus number 91.06C,  91.06B or 91.10 to Moulon or

b) the station Le Guichet and then the bus number 9 to Moulon.

RER B stations at the airport:

Terminals 1 and 3: station “Aéroport Charles de Gaulle 1”

How to reach this train station?

Terminal 1: take the free CDGVAL shuttle (journey time: 6 minutes).

Terminal 3: use the pedestrian walkway.

Terminal 2: station “Aéroport Charles de Gaulle 2 TGV”

How to reach this train station?

Terminals 2C, 2D, 2E and 2F: you can walk to the station.

Terminal 2A: you can walk to the station or take the free N1 shuttle.

Terminal 2G: you can take the free N2 shuttle.

Tickets can be purchased from the ticket offices and ticket machines in RER stations.

Take the Orlyval train to the RER station “Antony”. Then, at the station “Antony”, take the RER B train (direction Saint-Rémy-lès-Chevreuse) to either

a) the station Massy-Palaiseau and then the bus number 91.06C,  91.06B or 91.10 to Moulon or

b) the station Le Guichet and then the bus number 9 to Moulon.

Tickets can be purchased from RATP/Orlyval ticket offices and machines.

Take the shuttle bus to Porte Maillot (boulevard Pershing, metro/RER station “Porte Maillot”). The shuttle departs from the bus station of the airport between terminals 1 and 2. Frequency depends on flights. Check the schedule: https://www.aeroportparisbeauvais.com/en/access-parking/paris-airport-shuttle/

From Porte Maillot take the metro line number 1 to Châtelet-les-Halles. Then take the RER B train (direction Saint-Rémy-lès-Chevreuse) to either

a) the station Massy-Palaiseau and then the bus number 91.06C,  91.06B or 91.10 to Moulon or

b) the station Le Guichet and then the bus number 9 to Moulon.