Little confusing looking at the metro map. Looks like we'd take the RER B then transfer to the RER A at les halles?
1 answer
That's correct, to get from CDG Airport to Paris, Charles de Gaulle Etoile / Arc de Triomphe station you would take the RER B from CDG Airport to Chatelet Les Halles station, transfer to RER A direction Poissy / St-Germain-en-Laye / Cergy until Charles de Gaulle Etoile station.