How to get from Grisy-Suisnes to Longpont-Sur-Orge by RER and bus?

Grisy-Suisnes to Longpont-Sur-Orge - Bus Schedule

The 3121 bus from Grisy-Suisnes to Longpont-Sur-Orge runs from 05:29 to 21:08, with departures every 15 min-1 hr 5 min. The trip takes about 5 hr 39 min, with regular service throughout the operating hours.

From Grisy-Suisnes to Longpont-Sur-Orge by RER and bus

To get from Grisy-Suisnes to Longpont-Sur-Orge in Paris, you’ll need to take 2 bus lines and one RER 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 N123 bus from Châtelet station to Pont Belles Dames station. The total trip duration for this route is approximately 5 hr 39 min. The RER and bus schedule from Grisy-Suisnes may change. We recommend you check the updated RER and bus schedule to Longpont-Sur-Orge on the Moovit app.

339min
Walk to bus station
Bus - 31213121
RER - A
RER - A
Bus - N123N123
Walk to Longpont-Sur-Orge
Leaves from Maréchal Joffre

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Maréchal Joffre
    30 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
    31 min
  • 4
    Walk to RER station
    Walk to RER station
    Boissy-Saint-Léger
    70 m • 1 min
  • 5
    RER - A
    Wait for RER
    A
    Poissy
  • 6
    Ride to RER station
    Ride to RER station
    Châtelet - Les Halles
    29 min
  • 7
    Walk to bus station
    Walk to bus station
    Châtelet
    10 m • 1 min
  • 8
    Bus - N123N123
    Wait for bus
    N123
    Gare D'Arpajon
  • 9
    Ride to bus station
    Ride to bus station
    Pont Belles Dames
    68 min
  • 10
    Walk to Longpont-Sur-Orge
    Walk to
    Longpont-Sur-Orge
    1.38 km • 18 min
*Duration based on 8am traffic
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Public transit directions from Grisy-Suisnes to Longpont-Sur-Orge

The distance between Grisy-Suisnes, Paris and Longpont-Sur-Orge, Paris is approximately 70.71 km, which can typically be travelled in 339 min. Moovit will show you the directions from Grisy-Suisnes to Longpont-Sur-Orge 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 Grisy-Suisnes to Longpont-Sur-Orge

To check the RER and bus schedule from Grisy-Suisnes to Longpont-Sur-Orge using the Moovit app, first download and open the app on your smartphone. Enter your starting point (Grisy-Suisnes) and destination (Longpont-Sur-Orge), 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.

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Questions & Answers

  • What is the fastest way to get from Grisy-Suisnes to Longpont-Sur-Orge?

    The fastest way takes 339 minutes, using Bus line 3121, RER line A, Bus line N123.

  • Is there a direct bus between Grisy-Suisnes and Longpont-Sur-Orge in Paris?

    No, you’ll have to take 2 bus lines and one RER line in total. The total travelling time is 5 hr 39 min.

  • Which bus line goes from Grisy-Suisnes to Longpont-Sur-Orge 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 bus line and one RER line till Gare de Boissy-Saint-Léger station near Longpont-Sur-Orge in Paris.

  • How long does it take to travel from Grisy-Suisnes to Longpont-Sur-Orge in Paris by bus and RER?

    The total travel time between Grisy-Suisnes and Longpont-Sur-Orge in Paris by bus and RER is about 5 hr 39 min.

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

    Get off the bus at the Gare de Boissy-Saint-Léger stop, which is closest to Longpont-Sur-Orge in Paris.

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