How to get from Groslay to Saclay by RER and bus?

From Groslay to Saclay by RER and bus

To get from Groslay to Saclay in Paris, you’ll need to take 2 bus lines and one RER line: take the N43 bus from Gare de Sarcelles - Saint-Brice station to Gare du Nord 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 2 hr 26 min. The RER and bus schedule from Groslay may change. We recommend you check the updated RER and bus schedule to Saclay on the Moovit app.

146min
Walk to bus stationBus - N43
Bus - N43
RER - B
RER - B
Bus - 46094609
Walk to Saclay
Leaves from Gare de Sarcelles - Saint-Brice

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Gare de Sarcelles - Saint-Brice
    1.87 km • 24 min
  • 2
    Bus - N43N43
    Wait for bus
    N43
    Gare de L'Est
  • 3
    Ride to bus station
    Ride to bus station
    Gare du Nord
    47 min
  • 4
    Walk to RER station
    Walk to RER station
    Gare du Nord
    20 m • 1 min
  • 5
    RER - B
    Wait for RER
    B
    Saint-Rémy-Lès-Chevreuse
  • 6
    Ride to RER station
    Ride to RER station
    Le Guichet
    37 min
  • 7
    Walk to bus station
    Walk to bus station
    Gare du Guichet
    240 m • 4 min
  • 8
    Bus - 46094609
    Wait for bus
    4609
    Gare de Jouy-En-Josas
  • 9
    Ride to bus station
    Ride to bus station
    Christ de Saclay
    15 min
  • 10
    Walk to Saclay
    Walk to
    Saclay
    160 m • 3 min
*Duration based on 8am traffic

Alternative route from Groslay to Saclay by RER and bus via N43, B and 4606

To get from Groslay to Saclay in Paris, you’ll need to take 2 bus lines and one RER line: take the N43 bus from Gare de Sarcelles - Saint-Brice station to Gare du Nord station. Next, you’ll have to switch to the B RER and finally take the 4606 bus from Palaiseau Ville station to Christ de Saclay station. The total trip duration for this route is approximately 2 hr 40 min. The RER and bus schedule from Groslay may change. We recommend you check the updated RER and bus schedule to Saclay on the Moovit app.

160min
Walk to bus stationBus - N43
Bus - N43
RER - B
RER - B
Bus - 46064606
Walk to Saclay
Leaves from Gare de Sarcelles - Saint-Brice

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Gare de Sarcelles - Saint-Brice
    1.87 km • 24 min
  • 2
    Bus - N43N43
    Wait for bus
    N43
    Gare de L'Est
  • 3
    Ride to bus station
    Ride to bus station
    Gare du Nord
    47 min
  • 4
    Walk to RER station
    Walk to RER station
    Gare du Nord
    20 m • 1 min
  • 5
    RER - B
    Wait for RER
    B
    Saint-Rémy-Lès-Chevreuse
  • 6
    Ride to RER station
    Ride to RER station
    Palaiseau
    30 min
  • 7
    Walk to bus station
    Walk to bus station
    Palaiseau Ville
    580 m • 8 min
  • 8
    Bus - 46064606
    Wait for bus
    4606
    Christ de Saclay
  • 9
    Ride to bus station
    Ride to bus station
    Christ de Saclay
    26 min
  • 10
    Walk to Saclay
    Walk to
    Saclay
    140 m • 2 min
*Duration based on 8am traffic
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Public transit directions from Groslay to Saclay

The distance between Groslay, Paris and Saclay, Paris is approximately 51.92 km, which can typically be travelled in 146 min. Moovit will show you the directions from Groslay 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 Groslay to Saclay

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

Alternative route from Groslay to Saclay by RER and bus via N43, B and 4606

To get from Groslay to Saclay in Paris, you’ll need to take 2 bus lines and one RER line: take the N43 bus from Gare de Sarcelles - Saint-Brice station to Gare du Nord station. Next, you’ll have to switch to the B RER and finally take the 4606 bus from Palaiseau Ville station to Christ de Saclay station. The total trip duration for this route is approximately 2 hr 40 min. The RER and bus schedule from Groslay may change. We recommend you check the updated RER and bus schedule to Saclay on the Moovit app.

160min
Walk to bus stationBus - N43
Bus - N43
RER - B
RER - B
Bus - 46064606
Walk to Saclay
Leaves from Gare de Sarcelles - Saint-Brice

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Gare de Sarcelles - Saint-Brice
    1.87 km • 24 min
  • 2
    Bus - N43N43
    Wait for bus
    N43
    Gare de L'Est
  • 3
    Ride to bus station
    Ride to bus station
    Gare du Nord
    47 min
  • 4
    Walk to RER station
    Walk to RER station
    Gare du Nord
    20 m • 1 min
  • 5
    RER - B
    Wait for RER
    B
    Saint-Rémy-Lès-Chevreuse
  • 6
    Ride to RER station
    Ride to RER station
    Palaiseau
    30 min
  • 7
    Walk to bus station
    Walk to bus station
    Palaiseau Ville
    580 m • 8 min
  • 8
    Bus - 46064606
    Wait for bus
    4606
    Christ de Saclay
  • 9
    Ride to bus station
    Ride to bus station
    Christ de Saclay
    26 min
  • 10
    Walk to Saclay
    Walk to
    Saclay
    140 m • 2 min
*Duration based on 8am traffic

Questions & Answers

  • What is the fastest way to get from Groslay to Saclay?

    The fastest way takes 146 minutes, using Bus line N43, RER line B, Bus line 4609.

  • What is the alternative route to get from Groslay to Saclay?

    The alternative route takes 160 minutes, using Bus line N43, RER line B, Bus line 4606.

  • Is there a direct bus between Groslay and Saclay in Paris?

    No, you’ll have to take 2 bus lines and one RER line in total. The total travelling time is 2 hr 26 min.

  • Which bus line goes from Groslay to Saclay in Paris?

    The N43 bus line goes from Gare de Sarcelles - Saint-Brice station near Groslay to Gare de L'Est station. From there you’ll have to take one bus line and one RER line till Gare de L'Est station near Saclay in Paris.

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

    The total travel time between Groslay and Saclay in Paris by bus and RER is about 2 hr 26 min.

  • Where do I get on the bus near Groslay to get to Saclay in Paris?

    Get on the N43 bus from the Gare de Sarcelles - Saint-Brice stop near Groslay in Paris.

  • Where do I get off the bus when travelling between Groslay and Saclay in Paris?

    Get off the bus at the Gare de L'Est stop, which is closest to Saclay in Paris.

Popular Routes