Frequency from Charles de Gaulle to Paris (Opéra):06:00 to 20:45: every 15 minutes
20:45 to 23:00: every 20 minutes

Roissy Bus stops at Paris - Charles de Gaulle:
Terminal 1: Entrance 30, at arrivals level
Terminal 2A-2C : Gate 9
Terminal 2D-2B : Gate 11
Terminal 2G: terminal linked to Terminal 2C (Gate 4) by the free N2 shuttle bus.
The N2 shuttle bus runs from 05:30 to 23:00 (approx. every 6 minutes).
Average journey time: 15 minutes.
Terminal 3: Arrivals hall
Frequency from Paris (Opéra) to Charles de Gaulle:
05:45 to 20:00: every 15 minutes
20:00 to 22:00: every 20 minutes
22:00 to 23:00: every 30 minutes

Departures/Arrivals:
Opéra in the city - bus stop is in front of the American Express office on Rue Scribe See google map here
Journey time: 45mins/1hr
One-way fare €9.40
Your ticket can be bought from the driver - try and have correct change available.Fare : 9.40 Euro
(You can use all RATP travel passes on the Roissy Bus, including the Paris Visite Card, as long as they are valid for zones 1-5)
You can see route below on RATP plan: