How to get from Orsay to Buc by RER and bus?

Orsay to Buc - RER Schedule

The B RER from Orsay to Buc runs from 01:04 to 00:31, with departures every 5 min-5 hr 10 min. The trip takes about 1 hr 19 min, with regular service throughout the operating hours.

From Orsay to Buc by RER and bus

To get from Orsay to Buc in Paris, take the B RER from Le Guichet station to Saint-Rémy-Lès-Chevreuse station. Next, take the 6162 bus from Gare de Saint-Rémy-Lès-Chevreuse station to Lycée Franco-Allemand / Collège Martin Luther King station. The total trip duration for this route is approximately 1 hr 19 min. The RER and bus schedule from Orsay may change. We recommend you check the updated RER and bus schedule to Buc on the Moovit app.

79min
Walk to RER stationRER - B
RER - B
Bus - 61626162
Walk to Buc
Leaves from Le Guichet

Step by Step

  • 1
    Walk to RER station
    Walk to RER station
    Le Guichet
    1.3 km • 17 min
  • 2
    RER - B
    Wait for RER
    B
    Saint-Rémy-Lès-Chevreuse
  • 3
    Ride to RER station
    Ride to RER station
    Saint-Rémy-Lès-Chevreuse
    14 min
  • 4
    Walk to bus station
    Walk to bus station
    Gare de Saint-Rémy-Lès-Chevreuse
    70 m • 1 min
  • 5
    Bus - 61626162
    Wait for bus
    6162
    Gare de Versailles Château - Rive Gauche
  • 6
    Ride to bus station
    Ride to bus station
    Lycée Franco-Allemand / Collège Martin Luther King
    32 min
  • 7
    Walk to Buc
    Walk to
    Buc
    60 m • 1 min
*Duration based on 8am traffic
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Public transit directions from Orsay to Buc

The distance between Orsay, Paris and Buc, Paris is approximately 26.21 km, which can typically be travelled in 79 min. Moovit will show you the directions from Orsay to Buc 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 Orsay to Buc

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

Questions & Answers

  • What is the fastest way to get from Orsay to Buc?

    The fastest way takes 79 minutes, using RER line B, Bus line 6162.

  • Is there a direct RER between Orsay and Buc in Paris?

    No, you’ll have to take one RER line and one bus line in total. The total travelling time is 1 hr 19 min.

  • Which RER line goes from Orsay to Buc in Paris?

    The B RER line goes from Le Guichet station near Orsay to Saint-Rémy-Lès-Chevreuse station. From there you’ll have to take one bus line till Saint-Rémy-Lès-Chevreuse station near Buc in Paris.

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

    The total travel time between Orsay and Buc in Paris by RER and bus is about 1 hr 19 min.

  • Where do I get on the RER near Orsay to get to Buc in Paris?

    Get on the B RER from the Le Guichet station near Orsay in Paris.

  • Where do I get off the RER when travelling between Orsay and Buc in Paris?

    Get off the RER at the Saint-Rémy-Lès-Chevreuse stop, which is closest to Buc in Paris.

Popular Routes