How to get from La Défense (Grande Arche) to Saclay by RER and bus?

From La Défense (Grande Arche) to Saclay by RER and bus

To get from La Défense (Grande Arche) to Saclay in Paris, you’ll need to take 2 RER lines and one bus line: take the A RER from La Défense (Grande Arche) station to Châtelet - Les Halles station. Next, you’ll have to switch to the B RER and finally take the 4609 bus from Gare du Guichet station to Christ de Saclay station. The total trip duration for this route is approximately 1 hr 14 min. The RER and bus schedule from La Défense (Grande Arche) may change. We recommend you check the updated RER and bus schedule to Saclay on the Moovit app.

74min
RER - A
RER - A
RER - B
RER - B
Bus - 46094609
Walk to Saclay
Leaves from La Défense (Grande Arche)

Step by Step

  • 1
    Start from RER station
    Start from RER station
    La Défense (Grande Arche)
  • 2
    RER - A
    Wait for RER
    A
    Torcy
  • 3
    Ride to RER station
    Ride to RER station
    Châtelet - Les Halles
    10 min
  • 4
    RER - B
    Wait for RER
    B
    Saint-Rémy-Lès-Chevreuse
  • 5
    Ride to RER station
    Ride to RER station
    Le Guichet
    38 min
  • 6
    Walk to bus station
    Walk to bus station
    Gare du Guichet
    240 m • 4 min
  • 7
    Bus - 46094609
    Wait for bus
    4609
    Campus Hec
  • 8
    Ride to bus station
    Ride to bus station
    Christ de Saclay
    15 min
  • 9
    Walk to Saclay
    Walk to
    Saclay
    160 m • 3 min
*Duration based on 8am traffic

From La Défense (Grande Arche) to Saclay by bus and train

To get from La Défense (Grande Arche) to Saclay in Paris, take the U train from La Défense (Grande Arche) station to Saint-Quentin En Yvelines - Montigny-Le-Bretonneux station. Next, take the 5154 bus from Saint-Quentin - Gare Routière Des Prés station to Christ de Saclay station. The total trip duration for this route is approximately 1 hr 25 min. The RER and bus schedule from La Défense (Grande Arche) may change. We recommend you check the updated RER and bus schedule to Saclay on the Moovit app.

85min
Train - U
Train - U
Bus - 51545154
Walk to Saclay
Leaves from La Défense (Grande Arche)

Step by Step

  • 1
    Start from train station
    Start from train station
    La Défense (Grande Arche)
  • 2
    Train - U
    Wait for train
    U
    La Verrière
  • 3
    Ride to train station
    Ride to train station
    Saint-Quentin En Yvelines - Montigny-Le-Bretonneux
    32 min
  • 4
    Walk to bus station
    Walk to bus station
    Saint-Quentin - Gare Routière Des Prés
    180 m • 3 min
  • 5
    Bus - 51545154
    Wait for bus
    5154
    Aéroport D'Orly 1-2-3 - A3
  • 6
    Ride to bus station
    Ride to bus station
    Christ de Saclay
    31 min
  • 7
    Walk to Saclay
    Walk to
    Saclay
    80 m • 2 min
*Duration based on 8am traffic
The Most Popular Urban Mobility App in Paris.
All local mobility options in one app

Public transit directions from La Défense (Grande Arche) to Saclay

The distance between La Défense (Grande Arche), Paris and Saclay, Paris is approximately 39.98 km, which can typically be travelled in 74 min. Moovit will show you the directions from La Défense (Grande Arche) to Saclay 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 La Défense (Grande Arche) to Saclay

To check the RER and bus schedule from La Défense (Grande Arche) to Saclay using the Moovit app, first download and open the app on your smartphone. Enter your starting point (La Défense (Grande Arche)) and destination (Saclay), 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

From La Défense (Grande Arche) to Saclay by bus and train

To get from La Défense (Grande Arche) to Saclay in Paris, take the U train from La Défense (Grande Arche) station to Saint-Quentin En Yvelines - Montigny-Le-Bretonneux station. Next, take the 5154 bus from Saint-Quentin - Gare Routière Des Prés station to Christ de Saclay station. The total trip duration for this route is approximately 1 hr 25 min. The RER and bus schedule from La Défense (Grande Arche) may change. We recommend you check the updated RER and bus schedule to Saclay on the Moovit app.

85min
Train - U
Train - U
Bus - 51545154
Walk to Saclay
Leaves from La Défense (Grande Arche)

Step by Step

  • 1
    Start from train station
    Start from train station
    La Défense (Grande Arche)
  • 2
    Train - U
    Wait for train
    U
    La Verrière
  • 3
    Ride to train station
    Ride to train station
    Saint-Quentin En Yvelines - Montigny-Le-Bretonneux
    32 min
  • 4
    Walk to bus station
    Walk to bus station
    Saint-Quentin - Gare Routière Des Prés
    180 m • 3 min
  • 5
    Bus - 51545154
    Wait for bus
    5154
    Aéroport D'Orly 1-2-3 - A3
  • 6
    Ride to bus station
    Ride to bus station
    Christ de Saclay
    31 min
  • 7
    Walk to Saclay
    Walk to
    Saclay
    80 m • 2 min
*Duration based on 8am traffic

Questions & Answers

  • What is the fastest way to get from La Défense (Grande Arche) to Saclay?

    The fastest way takes 74 minutes, using RER line A, RER line B, Bus line 4609.

  • What is the alternative route to get from La Défense (Grande Arche) to Saclay?

    The alternative route takes 85 minutes, using Train line U, Bus line 5154.

  • Is there a direct RER between La Défense (Grande Arche) and Saclay?

    No, you’ll have to take 2 RER lines and one bus line in total. The total travelling time is 1 hr 14 min.

  • Which RER line goes from La Défense (Grande Arche) to Saclay?

    The A RER line goes from Torcy station near La Défense (Grande Arche) in Arrondissement de Nanterre 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 Saclay in Paris.

  • How long does it take to travel from La Défense (Grande Arche) to Saclay by RER and bus?

    The total travel time between La Défense (Grande Arche) in Arrondissement de Nanterre and Saclay in Paris by RER and bus is about 1 hr 14 min.

  • Where do I get on the RER near La Défense (Grande Arche) to get to Saclay?

    Get on the A RER from the Torcy station near La Défense (Grande Arche) in Arrondissement de Nanterre.

  • Where do I get off the RER when travelling between La Défense (Grande Arche) and Saclay?

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

Popular Routes