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Rer A Bus

A bus service operated by Rer
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List of stops
      Number of stops: 15
      Map

      Gare de Sartrouville ➞ Gare de Cergy-le-Haut

      Gare de Sartrouville

      		22:0122:0122:3122:3123:0223:0223:3223:32

      Gare de Maisons-Laffitte

      		—22:09—22:39—23:10—23:40

      Gare d'Achères Ville

      		—22:20—22:50—23:21—23:51

      Gare de Conflans Fin d'Oise

      		—22:31—23:01—23:32—00:02 +1

      Gare de Neuville Université

      		—22:38—23:08—23:39—00:09 +1

      Gare de Cergy Préfecture (I - O)

      		22:3122:4623:0123:1623:3223:4700:02 +100:17 +1

      Gare de Cergy Saint-Christophe

      		22:4323:0323:1323:3323:4400:04 +100:14 +100:34 +1

      Gare de Cergy-le-Haut

      		22:5123:0923:2123:3923:5200:10 +100:22 +100:40 +1
      Times marked with "—" indicate that the vehicle does not stop at this stop.
      The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.

      Gare de Cergy-le-Haut ➞ Gare Saint-Lazare

      Gare de Cergy-le-Haut21:5422:0522:2622:3522:5423:0523:2423:35
      Gare de Cergy Saint-Christophe22:0222:1122:3422:4123:0223:1123:3223:43
      Gare de Cergy Préfecture (I - O)22:1322:2822:4522:5823:1323:2823:4323:51
      Gare de Neuville Université—22:36—23:06—23:36—00:01 +1
      Gare de Conflans Fin d'Oise—22:43—23:13—23:43—00:08 +1
      Gare d'Achères Ville—22:54—23:24—23:54—00:16 +1
      Gare de Maisons-Laffitte—23:05—23:35—00:05 +1—00:33 +1
      Gare de Sartrouville22:4323:1323:1523:4323:4300:13 +100:13 +100:39 +1
      Gare de Houilles - Carrières-sur-Seine———————00:54 +1
      Nanterre - Université Rer———————01:13 +1
      Gare de La Garenne-Colombes———————01:23 +1
      Rue de l'Aigle / Les Vallées / Lycée Albert Camus———————01:29 +1
      Place de Belgique / Bécon les Bruyères———————01:35 +1
      Rue de la Station / Asnières-sur-Seine———————01:40 +1
      Gare de Clichy - Levallois———————01:46 +1
      Pont Cardinet———————01:51 +1
      Gare Saint-Lazare———————01:55 +1
      Times marked with "—" indicate that the vehicle does not stop at this stop.
      The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.
      Times marked with "—" indicate that the vehicle does not stop at this stop.
      The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.
      Last updated on March 28, 2026
      Build real-time departures into your app Free API Access →

      Route Path (Streets & Roads)

      Outbound: Gare de Sartrouville ➞ Gare de Cergy-le-Haut
      Rue d'Achères - Avenue Jean Moulin - Rue Georges Clemenceau - Place des Ouvrages - Rue de l'Embarquement
      Inbound: Gare de Cergy-le-Haut ➞ Gare Saint-Lazare
      Rue de l'Embarquement - Place des Ouvrages - Rue Georges Clemenceau - Avenue Jean Moulin - Rue d'Achères - Place André Malraux - Allée de Corse - Rue Colbert - Avenue Marie Juliette - Boulevard Georges Clemenceau - Impasse Sesquez - Rue Jouffroy d'Abbans - Rue Saint-Lazare
      All data is available in GTFS feed: horairesau-246c687815b82f

      Bus A FAQ

      • What time does the A bus start operating?

        Services on the A bus start at 22:01 on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday.

      • What time does the A bus stop working?

        Services on the A bus stop at 00:40 +1 on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday.

      • Is there a A bus stop near me?

        Click here to view the nearest A bus stop.

      A bus Route Map

      A bus Line Map PDF Version: A timetable, stops and map

      A (Nanterre Buses)

      The first stop of the A bus route is Gare de Sartrouville and the last stop is Gare de Cergy-le-Haut. A is operational during everyday.

      Additional information: A has 8 stops and the total trip duration for this route is approximately 68 minutes.

      See why over 2 million users trust and consider busmaps.com as the best public transport website. busmaps gives you Nanterre Buses suggested routes, real-time bus tracker, line route maps in Nanterre, and helps to find the closest A bus stops near you. No internet available? Download an offline PDF map and bus schedule for the A bus to take on your trip.

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