How to get from Les Ulis to Boissy-Le-Sec by RER and bus?

From Les Ulis to Boissy-Le-Sec by RER and bus

To get from Les Ulis to Boissy-Le-Sec in Paris, you’ll need to take 2 bus lines and one RER line: take the 4617 bus from Lfb station to Gare D'Épinay-Sur-Orge station. Next, you’ll have to switch to the C RER and finally take the 4414 bus from Gare D'Étampes station to Le Rotoir station. The total trip duration for this route is approximately 2 hr 3 min. The RER and bus schedule from Les Ulis may change. We recommend you check the updated RER and bus schedule to Boissy-Le-Sec on the Moovit app.

123min
Walk to bus station
Bus - 46174617
RER - C
RER - C
Bus - 44144414
Walk to Boissy-Le-Sec
Leaves from Lfb

Step by Step

  • 1
    Walk to bus station
    Walk to bus station
    Lfb
    80 m • 2 min
  • 2
    Bus - 46174617
    Wait for bus
    4617
    Gare D'Épinay-Sur-Orge
  • 3
    Ride to bus station
    Ride to bus station
    Gare D'Épinay-Sur-Orge
    35 min
  • 4
    Walk to RER station
    Walk to RER station
    Épinay-Sur-Orge
    20 m • 1 min
  • 5
    RER - C
    Wait for RER
    C
    Saint-Martin D'Étampes
  • 6
    Ride to RER station
    Ride to RER station
    Étampes
    36 min
  • 7
    Walk to bus station
    Walk to bus station
    Gare D'Étampes
    10 m • 1 min
  • 8
    Bus - 44144414
    Wait for bus
    4414
    Grande Rue
  • 9
    Ride to bus station
    Ride to bus station
    Le Rotoir
    17 min
  • 10
    Walk to Boissy-Le-Sec
    Walk to
    Boissy-Le-Sec
    10 m • 1 min
*Duration based on 8am traffic
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Public transit directions from Les Ulis to Boissy-Le-Sec

The distance between Les Ulis, Paris and Boissy-Le-Sec, Paris is approximately 59.68 km, which can typically be travelled in 123 min. Moovit will show you the directions from Les Ulis to Boissy-Le-Sec 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 Les Ulis to Boissy-Le-Sec

To check the RER and bus schedule from Les Ulis to Boissy-Le-Sec using the Moovit app, first download and open the app on your smartphone. Enter your starting point (Les Ulis) and destination (Boissy-Le-Sec), 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 Les Ulis to Boissy-Le-Sec?

    The fastest way takes 123 minutes, using Bus line 4617, RER line C, Bus line 4414.

  • Is there a direct bus between Les Ulis and Boissy-Le-Sec in Paris?

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

  • Which bus line goes from Les Ulis to Boissy-Le-Sec in Paris?

    The 4617 bus line goes from Lfb station near Les Ulis to Gare D'Épinay-Sur-Orge station. From there you’ll have to take one bus line and one RER line till Gare D'Épinay-Sur-Orge station near Boissy-Le-Sec in Paris.

  • How long does it take to travel from Les Ulis to Boissy-Le-Sec in Paris by bus and RER?

    The total travel time between Les Ulis and Boissy-Le-Sec in Paris by bus and RER is about 2 hr 3 min.

  • Where do I get on the bus near Les Ulis to get to Boissy-Le-Sec in Paris?

    Get on the 4617 bus from the Lfb stop near Les Ulis in Paris.

  • Where do I get off the bus when travelling between Les Ulis and Boissy-Le-Sec in Paris?

    Get off the bus at the Gare D'Épinay-Sur-Orge stop, which is closest to Boissy-Le-Sec in Paris.

Popular Routes