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

From Santeny to Chilly-Mazarin by RER and bus

To get from Santeny to Chilly-Mazarin in Paris, you’ll need to take 2 bus lines and one RER line: take the 3121 bus from Libération station to Gare de Boissy-Saint-Léger 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 4 hr 2 min. The RER and bus schedule from Santeny may change. We recommend you check the updated RER and bus schedule to Chilly-Mazarin on the Moovit app.

242min
Walk to bus station
Bus - 31213121
RER - A
RER - A
Bus - N21
Bus - N21
Walk to Chilly-Mazarin
Leaves from Libération

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Libération
    10 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
    9 min
  • 4
    Walk to RER station
    Walk to RER station
    Boissy-Saint-Léger
    70 m • 1 min
  • 5
    RER - A
    Wait for RER
    A
    Saint-Germain-En-Laye
  • 6
    Ride to RER station
    Ride to RER station
    Châtelet Les Halles
    30 min
  • 7
    Walk to bus station
    Walk to bus station
    Châtelet
    680 m • 9 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 • 6 min
*Duration based on 8am traffic

Alternative route from Santeny to Chilly-Mazarin by RER and bus via 451, A and N21

To get from Santeny to Chilly-Mazarin in Paris, you’ll need to take 2 bus lines and one RER line: take the 451 bus from Le Marais station to Gare de Boissy-Saint-Léger 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 5 hr 37 min. The RER and bus schedule from Santeny may change. We recommend you check the updated RER and bus schedule to Chilly-Mazarin on the Moovit app.

337min
Walk to bus station
Bus - 451451
RER - A
RER - A
Bus - N21
Bus - N21
Walk to Chilly-Mazarin
Leaves from Le Marais

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Le Marais
    350 m • 5 min
  • 2
    Bus - 451451
    Wait for bus
    451
    Gare de Boissy-Saint-Léger
  • 3
    Ride to bus station
    Ride to bus station
    Gare de Boissy-Saint-Léger
    29 min
  • 4
    Walk to RER station
    Walk to RER station
    Boissy-Saint-Léger
    90 m • 2 min
  • 5
    RER - A
    Wait for RER
    A
    Saint-Germain-En-Laye
  • 6
    Ride to RER station
    Ride to RER station
    Châtelet Les Halles
    31 min
  • 7
    Walk to bus station
    Walk to bus station
    Châtelet
    680 m • 9 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 • 6 min
*Duration based on 8am traffic
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Public transit directions from Santeny to Chilly-Mazarin

The distance between Santeny, Paris and Chilly-Mazarin, Paris is approximately 59.61 km, which can typically be travelled in 242 min. Moovit will show you the directions from Santeny 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 Santeny to Chilly-Mazarin

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

Alternative route from Santeny to Chilly-Mazarin by RER and bus via 451, A and N21

To get from Santeny to Chilly-Mazarin in Paris, you’ll need to take 2 bus lines and one RER line: take the 451 bus from Le Marais station to Gare de Boissy-Saint-Léger 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 5 hr 37 min. The RER and bus schedule from Santeny may change. We recommend you check the updated RER and bus schedule to Chilly-Mazarin on the Moovit app.

337min
Walk to bus station
Bus - 451451
RER - A
RER - A
Bus - N21
Bus - N21
Walk to Chilly-Mazarin
Leaves from Le Marais

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Le Marais
    350 m • 5 min
  • 2
    Bus - 451451
    Wait for bus
    451
    Gare de Boissy-Saint-Léger
  • 3
    Ride to bus station
    Ride to bus station
    Gare de Boissy-Saint-Léger
    29 min
  • 4
    Walk to RER station
    Walk to RER station
    Boissy-Saint-Léger
    90 m • 2 min
  • 5
    RER - A
    Wait for RER
    A
    Saint-Germain-En-Laye
  • 6
    Ride to RER station
    Ride to RER station
    Châtelet Les Halles
    31 min
  • 7
    Walk to bus station
    Walk to bus station
    Châtelet
    680 m • 9 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 • 6 min
*Duration based on 8am traffic

Questions & Answers

  • What is the fastest way to get from Santeny to Chilly-Mazarin?

    The fastest way takes 242 minutes, using Bus line 3121, RER line A, Bus line N21.

  • What is the alternative route to get from Santeny to Chilly-Mazarin?

    The alternative route takes 337 minutes, using Bus line 451, RER line A, Bus line N21.

  • Is there a direct bus between Santeny 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 4 hr 2 min.

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

    The 3121 bus line goes from Libération station near Santeny 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 Chilly-Mazarin in Paris.

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

    The total travel time between Santeny and Chilly-Mazarin in Paris by bus and RER is about 4 hr 2 min.

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

    Get on the 3121 bus from the Libération stop near Santeny in Paris.

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

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

Popular Routes