How to get from Collegien to Chilly-Mazarin by RER and bus?

Collegien to Chilly-Mazarin - Bus Schedule

The 421 bus from Collegien to Chilly-Mazarin runs from 05:10 to 23:35, with departures every 10-50 min. The trip takes about 3 hr 27 min, with regular service throughout the operating hours.

From Collegien to Chilly-Mazarin by RER and bus

To get from Collegien to Chilly-Mazarin in Paris, you’ll need to take 2 bus lines and one RER line: take the 421 bus from Cités Unies station to Gare de Torcy station. Next, you’ll have to switch to the A RER and finally take the N21 bus from Châtelet station to Rue de Chilly station. The total trip duration for this route is approximately 3 hr 27 min. The RER and bus schedule from Collegien may change. We recommend you check the updated RER and bus schedule to Chilly-Mazarin on the Moovit app.

207min
Walk to bus station
Bus - 421421
RER - A
RER - A
Bus - N21N21
Walk to Chilly-Mazarin
Leaves from Cités Unies

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Cités Unies
    1.89 km • 24 min
  • 2
    Bus - 421421
    Wait for bus
    421
    Gare D'Émerainville - Pontault-Combault
  • 3
    Ride to bus station
    Ride to bus station
    Gare de Torcy
    1 min
  • 4
    Walk to RER station
    Walk to RER station
    Torcy
    100 m • 2 min
  • 5
    RER - A
    Wait for RER
    A
    Cergy Le Haut
  • 6
    Ride to RER station
    Ride to RER station
    Châtelet - Les Halles
    31 min
  • 7
    Walk to bus station
    Walk to bus station
    Châtelet
    60 m • 1 min
  • 8
    Bus - N21N21
    Wait for bus
    N21
    Hôpital de Longjumeau
  • 9
    Ride to bus station
    Ride to bus station
    Rue de Chilly
    78 min
  • 10
    Walk to Chilly-Mazarin
    Walk to
    Chilly-Mazarin
    400 m • 5 min
*Duration based on 8am traffic
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Public transit directions from Collegien to Chilly-Mazarin

The distance between Collegien, Paris and Chilly-Mazarin, Paris is approximately 55.89 km, which can typically be travelled in 207 min. Moovit will show you the directions from Collegien to Chilly-Mazarin 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 Collegien to Chilly-Mazarin

To check the RER and bus schedule from Collegien to Chilly-Mazarin using the Moovit app, first download and open the app on your smartphone. Enter your starting point (Collegien) and destination (Chilly-Mazarin), 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 Collegien to Chilly-Mazarin?

    The fastest way takes 207 minutes, using Bus line 421, RER line A, Bus line N21.

  • Is there a direct bus between Collegien and Chilly-Mazarin in Paris?

    No, you’ll have to take 2 bus lines and one RER line in total. The total travelling time is 3 hr 27 min.

  • Which bus line goes from Collegien to Chilly-Mazarin in Paris?

    The 421 bus line goes from Cités Unies station near Collegien to Gare de Torcy station. From there you’ll have to take one bus line and one RER line till Gare de Torcy station near Chilly-Mazarin in Paris.

  • How long does it take to travel from Collegien to Chilly-Mazarin in Paris by bus and RER?

    The total travel time between Collegien and Chilly-Mazarin in Paris by bus and RER is about 3 hr 27 min.

  • Where do I get on the bus near Collegien to get to Chilly-Mazarin in Paris?

    Get on the 421 bus from the Cités Unies stop near Collegien in Paris.

  • Where do I get off the bus when travelling between Collegien and Chilly-Mazarin in Paris?

    Get off the bus at the Gare de Torcy stop, which is closest to Chilly-Mazarin in Paris.

Popular Routes