Originally Posted by
wendySFO
Air France has shuttle buses from Charles de Gaulle airport to Paris. Take the line to Place de l'Etoile (not the line to Montparnasse), I recall the first stop will land you right in front of the Le Meridien Etoile hotel. It is around 12 Euro one way. Worked well for me for arrival CDG around 8PM and pickup near Arc de Triomphe around 6AM.
That would be helpful if the OP is actually flying into CDG.
Taxi would be easier and quicker but, if you prefer, you can take the RER Line B to Chatelet Les Halles (one stop) and transfer on to RER Line A to Charles De Gualle Etoile (2 stops) and then Metro Line 1 to Porte Maillot (2 stops). Hotel is a short walk from here. A single ticket is €1.40, cheaper if you buy a carnet of 10 tickets.