How to get from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou by RER and bus?

Aéroport Cdg - Terminal 2 (Route de Service) to Chatou - Bus Schedule

The 2124 bus from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou runs from 06:30 to 20:46, with departures every 25-45 min. The trip takes about 1 hr 20 min, with regular service throughout the operating hours.

From Aéroport Cdg - Terminal 2 (Route de Service) to Chatou by RER and bus

To get from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou you’ll need to take one bus line and 2 RER lines: take the 2124 bus from Aéroport Cdg - Terminal 2 (Route de Service) station to Gare de Roissypôle - Aéroport station. Next, you’ll have to switch to the B RER and finally take the A RER from Châtelet - Les Halles station to Chatou - Croissy station. The total trip duration for this route is approximately 1 hr 20 min. The RER and bus schedule from Aéroport Cdg - Terminal 2 (Route de Service) may change. We recommend you check the updated RER and bus schedule to Chatou on the Moovit app.

80min

2124

Leaves from Aéroport Cdg - Terminal 2 (Route de Service)

Step by Step

1
Start from bus station
Aéroport Cdg - Terminal 2 (Route de Service)
2
2124
Wait for bus
2124
Gare de Roissypôle - Aéroport Cdg 1
3
Ride to bus station
Gare de Roissypôle - Aéroport
3 min
4
Walk to RER station
Aéroport Cdg 1 (Terminal 3)
60 m • 1 min
5

Wait for RER
B
Massy - Palaiseau
6
Ride to RER station
Châtelet - Les Halles
32 min
7

Wait for RER
A
Saint-Germain-En-Laye
8
Ride to RER station
Chatou - Croissy
21 min
9
Walk to
Chatou
610 m • 8 min

*Duration based on 8am traffic

Public transit directions from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou

The distance between Aéroport Cdg - Terminal 2 (Route de Service) and Chatou is approximately 48.01 km, which can typically be travelled in 80 min. Moovit will show you the directions from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou by RER and bus, so no matter how you choose to travel in Chatou – you will always have plenty of easy options.

RER And Bus schedule from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou

To check the RER and bus schedule from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou using the Moovit app, first download and open the app on your smartphone. Enter your starting point (Aéroport Cdg - Terminal 2 (Route de Service)) and destination (Chatou), then select the desired date and time of travel. Moovit will show all available RER and bus routes, estimated travel times, and any required transfers. You can view detailed departure and arrival times for each RER and bus, as well as real-time updates for delays or changes. Use this information to plan your trip and stay up to date with the latest RER and bus schedules.

Questions & Answers

What is the fastest way to get from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou?
The fastest way takes 80 minutes, using Bus line 2124, RER line B, RER line A.
Is there a direct bus between Aéroport Cdg - Terminal 2 (Route de Service) and Chatou?
No, you’ll have to take one bus line and 2 RER lines in total. The total travelling time is 1 hr 20 min.
Which bus line goes from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou?
The 2124 bus line goes from Gare de Roissypôle - Aéroport station near Aéroport Cdg - Terminal 2 (Route de Service) in Tremblay-En-France to Aéroport Cdg 1 (Terminal 3) station. From there you’ll have to take 2 RER lines till Aéroport Cdg 1 (Terminal 3) station near Chatou.
How long does it take to travel from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou by bus and RER?
The total travel time between Aéroport Cdg - Terminal 2 (Route de Service) and Chatou by bus and RER is about 1 hr 20 min.
Where do I get on the bus near Aéroport Cdg - Terminal 2 (Route de Service) to get to Chatou?
Get on the 2124 bus from the Gare de Roissypôle - Aéroport stop near Aéroport Cdg - Terminal 2 (Route de Service) in Tremblay-En-France.
Where do I get off the bus when travelling between Aéroport Cdg - Terminal 2 (Route de Service) and Chatou?
Get off the bus at the Aéroport Cdg 1 (Terminal 3) station, which is closest to Chatou.

Last updated on October 31, 2026

How to get from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou by RER and bus?

Aéroport Cdg - Terminal 2 (Route de Service) to Chatou - Bus Schedule

From Aéroport Cdg - Terminal 2 (Route de Service) to Chatou by RER and bus

Step by Step

Public transit directions from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou

RER And Bus schedule from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou

Related Routes

Questions & Answers

What is the fastest way to get from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou?

Is there a direct bus between Aéroport Cdg - Terminal 2 (Route de Service) and Chatou?

Which bus line goes from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou?

How long does it take to travel from Aéroport Cdg - Terminal 2 (Route de Service) to Chatou by bus and RER?

Where do I get on the bus near Aéroport Cdg - Terminal 2 (Route de Service) to get to Chatou?

Where do I get off the bus when travelling between Aéroport Cdg - Terminal 2 (Route de Service) and Chatou?

Popular Routes