How to get from Mairie to Chatou by RER and bus?

From Mairie to Chatou by RER and bus

To get from Mairie to Chatou you’ll need to take one bus line and 2 RER lines: take the 2101 bus from Mairie station to Roissypole - Aéroport Cdg1 (B1) 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 57 min. The RER and bus schedule from Mairie may change. We recommend you check the updated RER and bus schedule to Chatou on the Moovit app.

117min
Bus - 21012101
RER - B
RER - B
RER - A
RER - A
Walk to Chatou
Leaves from Mairie

Step by Step

  • 1
    Start from bus station
    Start from bus station
    Mairie
  • 2
    Bus - 21012101
    Wait for bus
    2101
    Roissypole - Aéroport Cdg1 (B1)
  • 3
    Ride to bus station
    Ride to bus station
    Roissypole - Aéroport Cdg1 (B1)
    37 min
  • 4
    Walk to RER station
    Walk to RER station
    Aéroport Cdg 1 (Terminal 3)
    180 m • 3 min
  • 5
    RER - B
    Wait for RER
    B
    Massy - Palaiseau
  • 6
    Ride to RER station
    Ride to RER station
    Châtelet Les Halles
    32 min
  • 7
    RER - A
    Wait for RER
    A
    Saint-Germain-En-Laye
  • 8
    Ride to RER station
    Ride to RER station
    Chatou - Croissy
    21 min
  • 9
    Walk to Chatou
    Walk to
    Chatou
    610 m • 8 min
*Duration based on 8am traffic
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Public transit directions from Mairie to Chatou

The distance between Mairie and Chatou is approximately 64.98 km, which can typically be travelled in 117 min. Moovit will show you the directions from Mairie 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 Mairie to Chatou

To check the RER and bus schedule from Mairie to Chatou using the Moovit app, first download and open the app on your smartphone. Enter your starting point (Mairie) 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.

Related Routes

Questions & Answers

  • What is the fastest way to get from Mairie to Chatou?

    The fastest way takes 117 minutes, using Bus line 2101, RER line B, RER line A.

  • Is there a direct bus between Mairie and Chatou?

    No, you’ll have to take one bus line and 2 RER lines in total. The total travelling time is 1 hr 57 min.

  • Which bus line goes from Mairie to Chatou?

    The 2101 bus line goes from Roissypole - Aéroport Cdg1 (B1) station near Mairie in Othis to Roissypole - Aéroport Cdg1 (B1) station. From there you’ll have to take 2 RER lines till Roissypole - Aéroport Cdg1 (B1) station near Chatou.

  • How long does it take to travel from Mairie to Chatou by bus and RER?

    The total travel time between Mairie and Chatou by bus and RER is about 1 hr 57 min.

  • Where do I get on the bus near Mairie to get to Chatou?

    Get on the 2101 bus from the Roissypole - Aéroport Cdg1 (B1) stop near Mairie in Othis.

  • Where do I get off the bus when travelling between Mairie and Chatou?

    Get off the bus at the Roissypole - Aéroport Cdg1 (B1) station, which is closest to Chatou.

Popular Routes