How to get from Grisy-Suisnes to Trappes by RER, bus and train?

From Grisy-Suisnes to Trappes by RER, bus and train

To get from Grisy-Suisnes to Trappes in Paris, you’ll need to take one bus line, one RER line and one train line: take the 3121 bus from Maréchal Joffre station to Gare de Boissy-Saint-Léger 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 31 min. The RER, bus and train schedule from Grisy-Suisnes may change. We recommend you check the updated RER, bus and train schedule to Trappes on the Moovit app.

151min
Walk to bus station
Bus - 31213121
RER - A
RER - A
Train - U
Train - U
Walk to Trappes
Leaves from Maréchal Joffre

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Maréchal Joffre
    40 m • 1 min
  • 2
    Bus - 31213121
    Wait for bus
    3121
    Gare de Boissy-Saint-Léger
  • 3
    Ride to bus station
    Ride to bus station
    Gare de Boissy-Saint-Léger
    37 min
  • 4
    Walk to RER station
    Walk to RER station
    Boissy-Saint-Léger
    70 m • 1 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)
    41 min
  • 7
    Train - U
    Wait for train
    U
    La Verrière
  • 8
    Ride to train station
    Ride to train station
    Trappes
    36 min
  • 9
    Walk to Trappes
    Walk to
    Trappes
    1.11 km • 15 min
*Duration based on 8am traffic
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Public transit directions from Grisy-Suisnes to Trappes

The distance between Grisy-Suisnes, Paris and Trappes, Paris is approximately 75.98 km, which can typically be travelled in 151 min. Moovit will show you the directions from Grisy-Suisnes to Trappes by RER, bus and train, so no matter how you choose to travel in Paris – you will always have plenty of easy options.

RER, Bus And Train schedule from Grisy-Suisnes to Trappes

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

Related Routes

Questions & Answers

  • What is the fastest way to get from Grisy-Suisnes to Trappes?

    The fastest way takes 151 minutes, using Bus line 3121, RER line A, Train line U.

  • Is there a direct bus between Grisy-Suisnes and Trappes in Paris?

    No, you’ll have to take one bus line, one RER line and one train line in total. The total travelling time is 2 hr 31 min.

  • Which bus line goes from Grisy-Suisnes to Trappes in Paris?

    The 3121 bus line goes from Maréchal Joffre station near Grisy-Suisnes to Gare de Boissy-Saint-Léger station. From there you’ll have to take one RER line and one train line till Gare de Boissy-Saint-Léger station near Trappes in Paris.

  • How long does it take to travel from Grisy-Suisnes to Trappes in Paris by bus, RER and train?

    The total travel time between Grisy-Suisnes and Trappes in Paris by bus, RER and train is about 2 hr 31 min.

  • Where do I get on the bus near Grisy-Suisnes to get to Trappes in Paris?

    Get on the 3121 bus from the Maréchal Joffre stop near Grisy-Suisnes in Paris.

  • Where do I get off the bus when travelling between Grisy-Suisnes and Trappes in Paris?

    Get off the bus at the Gare de Boissy-Saint-Léger station, which is closest to Trappes in Paris.

Popular Routes