Taking public bus is a great way to discover Paris. The RATP (Paris transportation public company) serves the main sites of the capital and its close suburbs through their 351 bus lines and 12,500 stops.
These lines include 31 Noctlilien lines (buses that run at night) and special buses that only serve the Parisian airports (Roissy-Charles-de-Gaulle and Orly).
Rates: « ticket +" (zones 1 & 2)
1 ticket: 1,80€ (2€ if you buy it in the bus)
10 tickets: 14,10€ (children under 10: 7,05€)
Opening hours: First bus: arround 5.30am ; Last bus: between 8.00pm to midnight (Each bus line have differents hours).
Night Buses: 31 lines are open in Paris between 11pm to 6am.
RoissyBus: (Roissy-Charles-de-Gaulle airport) 11€
Departure: Place de l’Opéra Garnier, 11, rue Scribe 75009 Paris
Departures from Paris to CDG airport: 5.15am-0.30am;
From CDG airport to Paris: 6am-0.30am
Orlybus (Orly airport): 7,70€
Departure Place Denfert Rochereau 75014 Paris;
Departures from Paris to Orly airport: 5.35am-midnight;
from Orly airport to Paris: 6am-0.30am