Would anyone be able to give me the best route to get from Charles De Gaulle airport to the Porte De Montreuil station. I have had a look at the map on the following page - http://www.aparisguide.com/maps/metro.htm - but can't see an easy route between the two or where i could switch stations to get on a different line.
by train, change from RER "B" to line 5 at Gare du Nord, then to line 9 at Republique.
Alternatively, take bus 351 direct from Roissypole (5mn from terminal 1) direct to Porte de Montreuil, journey time 59mn. Use the journeyplanner at http://www.ratp.com/ for specific times/days.