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  6. A Route

Rer A Remplacement RER A Bus

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

          Nanterre - Université Rer ➞ Cergy Le Haut Rer

          Nanterre - Université Rer

          		22:1022:1522:2022:3022:3022:4022:4522:5023:0023:0023:1023:1523:2023:3023:3023:4523:45

          Gare de Houilles - Carrières-sur-Seine

          		22:27—22:37—22:4722:57—23:07—23:1723:27—23:37—23:47—00:02 +1

          Gare de Sartrouville

          		22:3722:3922:4722:5422:5723:0723:0923:1723:2423:2723:3723:3923:4723:5423:5700:09 +100:12 +1

          Gare de Maisons-Laffitte

          		22:47—22:57—23:0723:17—23:27—23:3723:47—23:57—00:07 +1—00:22 +1

          Achères Ville

          		23:01—23:11—23:2123:31—23:41—23:5100:01 +1—00:11 +1—00:21 +1—00:36 +1

          Gare de Conflans - Fin-d'Oise

          		23:07—23:17—23:2723:37—23:47—23:5700:07 +1—00:17 +1—00:27 +1—00:42 +1

          Gare de Neuville - Université

          		23:14—23:24—23:3423:44—23:54—00:04 +100:14 +1—00:24 +1—00:34 +1—00:49 +1

          Gare de Cergy Préfecture - Quai G

          		23:2223:1123:3223:2623:4223:5223:4100:02 +123:5600:12 +100:22 +100:11 +100:32 +100:26 +100:42 +100:41 +100:57 +1

          Gare de Cergy Saint-Christophe

          		23:3423:2323:4423:3823:5400:04 +123:5300:14 +100:08 +100:24 +100:34 +100:23 +100:44 +100:38 +100:54 +100:53 +101:09 +1

          Cergy Le Haut Rer

          		23:4023:2923:5023:4400:00 +100:10 +123:5900:20 +100:14 +100:30 +100:40 +100:29 +100:50 +100:44 +101:00 +100:59 +101:15 +1

          Trips in this timetable are not wheelchair accessible.

          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.

          Nanterre - Université Rer ➞ Gare de Poissy Sud

          Nanterre - Université Rer—22:2022:3022:4022:5023:0023:1023:2023:3023:45
          Gare de Houilles - Carrières-sur-Seine—22:3722:4722:5723:0723:1723:2723:3723:4700:02 +1
          Gare de Sartrouville22:3022:4722:5723:0723:1723:2723:3723:4723:5700:12 +1
          Gare de Maisons-Laffitte22:4022:5723:0723:1723:2723:3723:4723:5700:07 +100:22 +1
          Gare de Poissy Sud22:5823:1523:2523:3523:4523:5500:05 +100:15 +100:25 +100:40 +1

          Trips in this timetable are not wheelchair accessible.

          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.
          Build real-time departures into your app Free API Access →

          Route Path (Streets & Roads)

          Outbound: Nanterre - Université Rer ➞ Cergy Le Haut Rer
          Place André Malraux - Rue d'Achères - Rue Georges Clemenceau - Rue de l'Embarquement
          Inbound: Nanterre - Université Rer ➞ Gare de Poissy Sud
          Place André Malraux - Rue d'Achères - Avenue Maurice Berteaux

          Schedules and stops for this route are published in GTFS: horairesau-246c687815b82f

          Bus A FAQ

          • What time does the A bus start operating?

            Services on the A - Remplacement RER A bus start at 22:10 on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

          • What time does the A bus stop working?

            Services on the A - Remplacement RER A bus stop at 01:15 +1 on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

          • Is there a A bus stop near me?

            Click here to view the nearest A - Remplacement RER A bus stop.

          A (Nanterre Buses)

          The first stop of the A bus route is Nanterre - Université Rer and the last stop is Cergy Le Haut Rer. A (Remplacement RER A) is operational during everyday.

          Additional information: A has 10 stops. The total trip duration for this route is approximately 90 minutes.

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          Last updated on August 27, 2026