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

Orsay to Chatou - RER Schedule

The B RER from Orsay to Chatou usually operates 24 hours a day, 7 days a week, running every 5-35 min. The trip takes about 1 hr 36 min, with regular service throughout the operating hours.

From Orsay to Chatou by RER and bus

To get from Orsay to Chatou in Paris, you’ll need to take 2 RER lines and one bus line: take the B RER from Le Guichet station to Châtelet - Les Halles station. Next, you’ll have to switch to the A RER and finally take the 6427 bus from Gare de Chatou - Croissy station to Renoir station. The total trip duration for this route is approximately 1 hr 36 min. The RER and bus schedule from Orsay may change. We recommend you check the updated RER and bus schedule to Chatou on the Moovit app.

96min
Walk to RER stationRER - B
RER - B
RER - A
RER - A
Bus - 64276427
Leaves from Le Guichet

Step by Step

  • 1
    Walk to RER station
    Walk to RER station
    Le Guichet
    1.3 km • 17 min
  • 2
    RER - B
    Wait for RER
    B
    Aéroport Charles de Gaulle 2 (Terminal 2)
  • 3
    Ride to RER station
    Ride to RER station
    Châtelet - Les Halles
    33 min
  • 4
    RER - A
    Wait for RER
    A
    Saint-Germain-En-Laye
  • 5
    Ride to RER station
    Ride to RER station
    Chatou - Croissy
    21 min
  • 6
    Walk to bus station
    Walk to bus station
    Gare de Chatou - Croissy
    60 m • 1 min
  • 7
    Bus - 64276427
    Wait for bus
    6427
    Place du Docteur Roux
  • 8
    Ride to bus station Renoir
    Ride to bus station
    Renoir
    16 min
*Duration based on 8am traffic
The Most Popular Urban Mobility App in Paris.
All local mobility options in one app

Public transit directions from Orsay to Chatou

The distance between Orsay, Paris and Chatou, Paris is approximately 44.89 km, which can typically be travelled in 96 min. Moovit will show you the directions from Orsay to Chatou by RER and bus, so no matter how you choose to travel in Paris – you will always have plenty of easy options.

RER And Bus schedule from Orsay to Chatou

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

    The fastest way takes 96 minutes, using RER line B, RER line A, Bus line 6427.

  • Is there a direct RER between Orsay and Chatou in Paris?

    No, you’ll have to take 2 RER lines and one bus line in total. The total travelling time is 1 hr 36 min.

  • Which RER line goes from Orsay to Chatou in Paris?

    The B RER line goes from Le Guichet station near Orsay to Châtelet - Les Halles station. From there you’ll have to take one RER line and one bus line till Châtelet - Les Halles station near Chatou in Paris.

  • How long does it take to travel from Orsay to Chatou in Paris by RER and bus?

    The total travel time between Orsay and Chatou in Paris by RER and bus is about 1 hr 36 min.

  • Where do I get on the RER near Orsay to get to Chatou in Paris?

    Get on the B RER from the Le Guichet station near Orsay in Paris.

  • Where do I get off the RER when travelling between Orsay and Chatou in Paris?

    Get off the RER at the Châtelet - Les Halles stop, which is closest to Chatou in Paris.

Popular Routes