How to get from Sermaise to Montesson by RER?

From Sermaise to Montesson by RER

To get from Sermaise to Montesson in Paris, you’ll need to take 3 RER lines: take the C RER from Sermaise station to Saint-Michel Notre-Dame station. Next, you’ll have to switch to the B RER and finally take the A RER from Châtelet - Les Halles station to Le Vésinet - Le Pecq station. The total trip duration for this route is approximately 1 hr 48 min. The RER schedule from Sermaise may change. We recommend you check the updated RER schedule to Montesson on the Moovit app.

108min
RER - C
RER - C
RER - B
RER - B
RER - A
RER - A
Walk to Montesson
Leaves from Sermaise

Step by Step

  • 1
    Start from RER station
    Start from RER station
    Sermaise
  • 2
    RER - C
    Wait for RER
    C
    Chaville - Vélizy
  • 3
    Ride to RER station
    Ride to RER station
    Saint-Michel Notre-Dame
    57 min
  • 4
    RER - B
    Wait for RER
    B
    Mitry - Claye
  • 5
    Ride to RER station
    Ride to RER station
    Châtelet - Les Halles
    2 min
  • 6
    RER - A
    Wait for RER
    A
    Saint-Germain-En-Laye
  • 7
    Ride to RER station
    Ride to RER station
    Le Vésinet - Le Pecq
    27 min
  • 8
    Walk to Montesson
    Walk to
    Montesson
    840 m • 11 min
*Duration based on 8am traffic
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Public transit directions from Sermaise to Montesson

The distance between Sermaise, Paris and Montesson, Paris is approximately 73.99 km, which can typically be travelled in 108 min. Moovit will show you the directions from Sermaise to Montesson by RER, so no matter how you choose to travel in Paris – you will always have plenty of easy options.

RER schedule from Sermaise to Montesson

To check the RER schedule from Sermaise to Montesson using the Moovit app, first download and open the app on your smartphone. Enter your starting point (Sermaise) and destination (Montesson), then select the desired date and time of travel. Moovit will show all available RER routes, estimated travel times, and any required transfers. You can view detailed departure and arrival times for each RER, 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 schedules.

Related Routes

Questions & Answers

  • What is the fastest way to get from Sermaise to Montesson?

    The fastest way takes 108 minutes, using RER line C, RER line B, RER line A.

  • Is there a direct RER between Sermaise and Montesson in Paris?

    No, you’ll have to take 3 RER lines in total. The total travelling time is 1 hr 48 min.

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

    The C RER line goes from Saint-Michel Notre-Dame station near Sermaise to Châtelet - Les Halles station. From there you’ll have to take one RER line till Châtelet - Les Halles station near Montesson in Paris.

  • How long does it take to travel from Sermaise to Montesson in Paris by RER?

    The total travel time between Sermaise and Montesson in Paris by RER is about 1 hr 48 min.

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

    Get on the C RER from the Saint-Michel Notre-Dame station near Sermaise in Paris.

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

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

Popular Routes