How to get from Sermaise to Trappes by RER and train?

Sermaise to Trappes - RER Schedule

The C RER from Sermaise to Trappes usually operates 24 hours a day, 7 days a week, running every 15-40 min. The trip takes about 2 hr 24 min, with regular service throughout the operating hours.

From Sermaise to Trappes by RER and train

To get from Sermaise to Trappes in Paris, you’ll need to take 2 RER lines and one train line: take the C RER from Sermaise station to Gare D'Austerlitz station. Next, you’ll have to switch to the A RER and finally take the U train from La Défense (Grande Arche) station to Trappes station. The total trip duration for this route is approximately 2 hr 24 min. The RER and train schedule from Sermaise may change. We recommend you check the updated RER and train schedule to Trappes on the Moovit app.

144min
RER - C
RER - C
RER - A
RER - A
Train - U
Train - U
Walk to Trappes
Leaves from Sermaise

Step by Step

  • 1
    Start from RER station
    Start from RER station
    Sermaise
  • 2
    RER - C
    Wait for RER
    C
    Musée D'Orsay
  • 3
    Ride to RER station
    Ride to RER station
    Gare D'Austerlitz
    62 min
  • 4
    Walk to RER station
    Walk to RER station
    Gare de Lyon
    720 m • 9 min
  • 5
    RER - A
    Wait for RER
    A
    Saint-Germain-En-Laye
  • 6
    Ride to RER station
    Ride to RER station
    La Défense (Grande Arche)
    13 min
  • 7
    Train - U
    Wait for train
    U
    Rambouillet
  • 8
    Ride to train station
    Ride to train station
    Trappes
    36 min
  • 9
    Walk to Trappes
    Walk to
    Trappes
    1.11 km • 14 min
*Duration based on 8am traffic
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Public transit directions from Sermaise to Trappes

The distance between Sermaise, Paris and Trappes, Paris is approximately 89.82 km, which can typically be travelled in 144 min. Moovit will show you the directions from Sermaise to Trappes by RER and train, so no matter how you choose to travel in Paris – you will always have plenty of easy options.

RER And Train schedule from Sermaise to Trappes

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

Related Routes

Questions & Answers

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

    The fastest way takes 144 minutes, using RER line C, RER line A, Train line U.

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

    No, you’ll have to take 2 RER lines and one train line in total. The total travelling time is 2 hr 24 min.

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

    The C RER line goes from Gare D'Austerlitz station near Sermaise to Gare de Lyon station. From there you’ll have to take one RER line and one train line till Gare de Lyon station near Trappes in Paris.

  • How long does it take to travel from Sermaise to Trappes in Paris by RER and train?

    The total travel time between Sermaise and Trappes in Paris by RER and train is about 2 hr 24 min.

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

    Get on the C RER from the Gare D'Austerlitz station near Sermaise in Paris.

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

    Get off the RER at the Gare de Lyon station, which is closest to Trappes in Paris.

Popular Routes