How to get from Cergy to Rosny-Sur-Seine by RER, bus and train?

By RER, bus and train

To get from Cergy to Rosny-Sur-Seine in Paris, you’ll need to take one RER line, one train line and one bus line: take the A RER from Cergy Préfecture station to Conflans Fin D'Oise station. Next, you’ll have to switch to the J train and finally take the 2B bus from Gare de Mantes-La-Jolie - Quai 2 station to Martinets station. The total trip duration for this route is approximately 1 hr 47 min.

107min
Walk to RER stationRER - A
RER - A
Train - J
Train - J
Bus - 2B2B
Walk to Rosny-Sur-Seine
Leaves from Cergy Préfecture

Step by Step

  • 1
    Walk to RER station
    Walk to RER station
    Cergy Préfecture
    840 m • 11 min
  • 2
    RER - A
    Wait for RER
    A
    Boissy-Saint-Léger
  • 3
    Ride to RER station
    Ride to RER station
    Conflans Fin D'Oise
    6 min
  • 4
    Train - J
    Wait for train
    J
    Mantes-La-Jolie
  • 5
    Ride to train station
    Ride to train station
    Mantes-La-Jolie
    38 min
  • 6
    Walk to bus station
    Walk to bus station
    Gare de Mantes-La-Jolie - Quai 2
    70 m • 1 min
  • 7
    Bus - 2B2B
    Wait for bus
    2B
    Bonnières-Sur-Seine Gare Routière - Quai 2
  • 8
    Ride to bus station
    Ride to bus station
    Martinets
    9 min
  • 9
    Walk to Rosny-Sur-Seine
    Walk to
    Rosny-Sur-Seine
    130 m • 2 min
*Duration based on 8am traffic

By bus and train

To get from Cergy to Rosny-Sur-Seine in Paris, you’ll need to take 2 train lines and one bus line: take the L train from Cergy Préfecture station to Conflans Fin D'Oise station. Next, you’ll have to switch to the J train and finally take the 2B bus from Gare de Mantes-La-Jolie - Quai 2 station to Martinets station. The total trip duration for this route is approximately 1 hr 54 min.

114min
Walk to train stationTrain - L
Train - L
Train - J
Train - J
Bus - 2B2B
Walk to Rosny-Sur-Seine
Leaves from Cergy Préfecture

Step by Step

  • 1
    Walk to train station
    Walk to train station
    Cergy Préfecture
    840 m • 11 min
  • 2
    Train - L
    Wait for train
    L
    Gare Saint-Lazare
  • 3
    Ride to train station
    Ride to train station
    Conflans Fin D'Oise
    6 min
  • 4
    Train - J
    Wait for train
    J
    Mantes-La-Jolie
  • 5
    Ride to train station
    Ride to train station
    Mantes-La-Jolie
    38 min
  • 6
    Walk to bus station
    Walk to bus station
    Gare de Mantes-La-Jolie - Quai 2
    70 m • 1 min
  • 7
    Bus - 2B2B
    Wait for bus
    2B
    Bonnières-Sur-Seine Gare Routière - Quai 2
  • 8
    Ride to bus station
    Ride to bus station
    Martinets
    9 min
  • 9
    Walk to Rosny-Sur-Seine
    Walk to
    Rosny-Sur-Seine
    130 m • 2 min
*Duration based on 8am traffic
The Most Popular Urban Mobility App in Paris.
All local mobility options in one app

Public transit directions from Cergy to Rosny-Sur-Seine

The distance between Cergy, Paris and Rosny-Sur-Seine, Paris is approximately 42.44 km, which can typically be travelled in 107 min. Moovit will show you the directions from Cergy to Rosny-Sur-Seine by RER, bus and train, so no matter how you choose to travel in Paris – you will always have plenty of easy options.

Public transit stations close to Cergy

Cergy is located at Cergy, Paris and the nearest public transit station is Conseil Départemental / Conseil Général.

Bus stations close to Cergy:

  • Conseil Départemental / Conseil Général
  • Château Saint-Sylvère
  • Paradis

RER stations close to Cergy:

  • Cergy Préfecture

Public transit stations close to Rosny-Sur-Seine, Paris

Rosny-Sur-Seine is located at Rosny-Sur-Seine, Paris and the nearest public transit station is Stade.

Train stations close to Rosny-Sur-Seine:

  • Rosny-Sur-Seine
  • Mantes-La-Jolie

Bus stations close to Rosny-Sur-Seine:

  • Stade
  • Saint Charles
  • Martinets

Related Routes

By bus and train

To get from Cergy to Rosny-Sur-Seine in Paris, you’ll need to take 2 train lines and one bus line: take the L train from Cergy Préfecture station to Conflans Fin D'Oise station. Next, you’ll have to switch to the J train and finally take the 2B bus from Gare de Mantes-La-Jolie - Quai 2 station to Martinets station. The total trip duration for this route is approximately 1 hr 54 min.

114min
Walk to train stationTrain - L
Train - L
Train - J
Train - J
Bus - 2B2B
Walk to Rosny-Sur-Seine
Leaves from Cergy Préfecture

Step by Step

  • 1
    Walk to train station
    Walk to train station
    Cergy Préfecture
    840 m • 11 min
  • 2
    Train - L
    Wait for train
    L
    Gare Saint-Lazare
  • 3
    Ride to train station
    Ride to train station
    Conflans Fin D'Oise
    6 min
  • 4
    Train - J
    Wait for train
    J
    Mantes-La-Jolie
  • 5
    Ride to train station
    Ride to train station
    Mantes-La-Jolie
    38 min
  • 6
    Walk to bus station
    Walk to bus station
    Gare de Mantes-La-Jolie - Quai 2
    70 m • 1 min
  • 7
    Bus - 2B2B
    Wait for bus
    2B
    Bonnières-Sur-Seine Gare Routière - Quai 2
  • 8
    Ride to bus station
    Ride to bus station
    Martinets
    9 min
  • 9
    Walk to Rosny-Sur-Seine
    Walk to
    Rosny-Sur-Seine
    130 m • 2 min
*Duration based on 8am traffic

Questions & Answers

  • What is the fastest way to get from Cergy to Rosny-Sur-Seine?

    The fastest way takes 107 minutes, using Bus line A, Bus line J, Bus line 2B.

  • What is the alternative route to get from Cergy to Rosny-Sur-Seine?

    The alternative route takes 114 minutes, using Bus line L, Bus line J, Bus line 2B.

  • Is there a direct RER between Cergy and Rosny-Sur-Seine in Paris?

    No, you’ll have to take one RER line, one train line and one bus line in total. The total travelling time is 1 hr 47 min.

  • Which RER line goes from Cergy to Rosny-Sur-Seine in Paris?

    The A RER line goes from Cergy Préfecture station near Cergy to Boissy-Saint-Léger station. From there you’ll have to take one train line and one bus line till Boissy-Saint-Léger station near Rosny-Sur-Seine in Paris

  • How long does it take to travel from Cergy to Rosny-Sur-Seine in Paris by RER, train and bus?

    The total travel time between Cergy and Rosny-Sur-Seine in Paris by RER, train and bus is about 1 hr 47 min.

  • Where do I get on the RER near Cergy to get to Rosny-Sur-Seine in Paris?

    Get on the A RER from the Cergy Préfecture station near Cergy in Paris.

  • Where do I get off the RER when travelling between Cergy and Rosny-Sur-Seine in Paris?

    Get off the RER at the Boissy-Saint-Léger stop, which is closest to Rosny-Sur-Seine in Paris.

Real-Time Arrivals, Schedules, Maps & More