How to get from Poissy to Champlan by RER and bus?

From Poissy to Champlan by RER and bus

To get from Poissy to Champlan in Paris, you’ll need to take 2 RER lines and one bus line: take the A RER from Poissy station to Châtelet - Les Halles station. Next, you’ll have to switch to the B RER and finally take the Y bus from Palaiseau RER - Edouard Branly station to Cosmonautes - Stalingrad station. The total trip duration for this route is approximately 1 hr 38 min. The RER and bus schedule from Poissy may change. We recommend you check the updated RER and bus schedule to Champlan on the Moovit app.

98min
RER - A
RER - A
RER - B
RER - B
Bus - YY
Walk to Champlan
Leaves from Poissy

Step by Step

  • 1
    Start from RER station
    Start from RER station
    Poissy
  • 2
    RER - A
    Wait for RER
    A
    Marne-La-Vallée Chessy
  • 3
    Ride to RER station
    Ride to RER station
    Châtelet - Les Halles
    32 min
  • 4
    RER - B
    Wait for RER
    B
    Saint-Rémy-Lès-Chevreuse
  • 5
    Ride to RER station
    Ride to RER station
    Palaiseau
    27 min
  • 6
    Walk to bus station
    Walk to bus station
    Palaiseau RER - Edouard Branly
    250 m • 4 min
  • 7
    Bus - YY
    Wait for bus
    Y
    Gare de Massy - Palaiseau
  • 8
    Ride to bus station
    Ride to bus station
    Cosmonautes - Stalingrad
    2 min
  • 9
    Walk to Champlan
    Walk to
    Champlan
    690 m • 9 min
*Duration based on 8am traffic
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Public transit directions from Poissy to Champlan

The distance between Poissy, Paris and Champlan, Paris is approximately 49.21 km, which can typically be travelled in 98 min. Moovit will show you the directions from Poissy to Champlan 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 Poissy to Champlan

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

    The fastest way takes 98 minutes, using RER line A, RER line B, Bus line Y.

  • Is there a direct RER between Poissy and Champlan in Paris?

    No, you’ll have to take 2 RER lines and one bus line in total. The total travelling time is 1 hr 38 min.

  • Which RER line goes from Poissy to Champlan in Paris?

    The A RER line goes from Châtelet - Les Halles station near Poissy to Palaiseau station. From there you’ll have to take one RER line and one bus line till Palaiseau station near Champlan in Paris.

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

    The total travel time between Poissy and Champlan in Paris by RER and bus is about 1 hr 38 min.

  • Where do I get on the RER near Poissy to get to Champlan in Paris?

    Get on the A RER from the Châtelet - Les Halles station near Poissy in Paris.

  • Where do I get off the RER when travelling between Poissy and Champlan in Paris?

    Get off the RER at the Palaiseau stop, which is closest to Champlan in Paris.

Popular Routes