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

From Montesson to Champlan by RER and bus

To get from Montesson to Champlan in Paris, you’ll need to take 2 RER lines and one bus line: take the A RER from Le Vésinet - Le Pecq 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 39 min. The RER and bus schedule from Montesson may change. We recommend you check the updated RER and bus schedule to Champlan on the Moovit app.

99min
Walk to RER stationRER - A
RER - A
RER - B
RER - B
Bus - YY
Walk to Champlan
Leaves from Le Vésinet - Le Pecq

Step by Step

  • 1
    Walk to RER station
    Walk to RER station
    Le Vésinet - Le Pecq
    840 m • 11 min
  • 2
    RER - A
    Wait for RER
    A
    Boissy-Saint-Léger
  • 3
    Ride to RER station
    Ride to RER station
    Châtelet - Les Halles
    26 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 Montesson to Champlan

The distance between Montesson, Paris and Champlan, Paris is approximately 41.49 km, which can typically be travelled in 99 min. Moovit will show you the directions from Montesson 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 Montesson to Champlan

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

    The fastest way takes 99 minutes, using RER line A, RER line B, Bus line Y.

  • Is there a direct RER between Montesson 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 39 min.

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

    The A RER line goes from Le Vésinet - Le Pecq station near Montesson 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 Champlan in Paris.

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

    The total travel time between Montesson and Champlan in Paris by RER and bus is about 1 hr 39 min.

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

    Get on the A RER from the Le Vésinet - Le Pecq station near Montesson in Paris.

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

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

Popular Routes