Rer A Remplacement RER A Bus

A bus service operated by Rer

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List of stops

Number of stops: 15

Map

Nanterre - Université Rer ➞ Gare de Cergy-le-Haut

Nanterre - Université Rer	22:10	22:10	22:20	22:20	22:30	22:30	22:40	22:40	22:50	22:50	23:00	23:00	23:10	23:10	23:20	23:30	23:30	23:45
Gare de Houilles - Carrières-sur-Seine	—	22:27	—	22:37	—	22:47	—	22:57	—	23:07	—	23:17	—	23:27	23:37	—	23:47	00:02 +1
Gare de Sartrouville	22:34	22:37	22:44	22:47	22:54	22:57	23:04	23:07	23:14	23:17	23:24	23:27	23:34	23:37	23:47	23:54	23:57	00:12 +1
Gare de Maisons-Laffitte	—	22:47	—	22:57	—	23:07	—	23:17	—	23:27	—	23:37	—	23:47	23:57	—	00:07 +1	00:22 +1
Gare d'Achères Ville	—	23:01	—	23:11	—	23:21	—	23:31	—	23:41	—	23:51	—	00:01 +1	00:11 +1	—	00:21 +1	00:36 +1
Gare de Conflans Fin d'Oise	—	23:07	—	23:17	—	23:27	—	23:37	—	23:47	—	23:57	—	00:07 +1	00:17 +1	—	00:27 +1	00:42 +1
Gare de Neuville Université	—	23:14	—	23:24	—	23:34	—	23:44	—	23:54	—	00:04 +1	—	00:14 +1	00:24 +1	—	00:34 +1	00:49 +1
Gare de Cergy Préfecture (A - H)	23:06	23:22	23:16	23:32	23:26	23:42	23:36	23:52	23:46	00:02 +1	23:56	00:12 +1	00:06 +1	00:22 +1	00:32 +1	00:26 +1	00:42 +1	00:57 +1
Gare de Cergy Saint-Christophe	23:18	23:34	23:28	23:44	23:38	23:54	23:48	00:04 +1	23:58	00:14 +1	00:08 +1	00:24 +1	00:18 +1	00:34 +1	00:44 +1	00:38 +1	00:54 +1	01:09 +1
Gare de Cergy-le-Haut	23:24	23:40	23:34	23:50	23:44	00:00 +1	23:54	00:10 +1	00:04 +1	00:20 +1	00:14 +1	00:30 +1	00:24 +1	00:40 +1	00:50 +1	00:44 +1	01:00 +1	01:15 +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-Haut	22:20	22:30	22:30	22:40	22:50	22:50	23:00	23:10	23:10	23:30	23:35
Gare de Cergy Saint-Christophe	22:28	22:38	22:38	22:48	22:58	22:58	23:08	23:18	23:18	23:38	23:43
Gare de Cergy Préfecture (A - H)	22:41	22:51	22:51	23:01	23:11	23:11	23:21	23:31	23:31	23:51	23:51
Gare de Neuville Université	22:51	—	23:01	23:11	—	23:21	23:31	—	23:41	—	00:01 +1
Gare de Conflans Fin d'Oise	22:58	—	23:08	23:18	—	23:28	23:38	—	23:48	—	00:08 +1
Gare d'Achères Ville	23:06	—	23:16	23:26	—	23:36	23:46	—	23:56	—	00:16 +1
Gare de Maisons-Laffitte	23:21	—	23:31	23:41	—	23:51	00:01 +1	—	00:11 +1	—	00:33 +1
Gare de Sartrouville	23:29	23:21	23:39	23:49	23:41	23:59	00:09 +1	00:01 +1	00:19 +1	00:21 +1	00:39 +1
Gare de Houilles - Carrières-sur-Seine	23:41	—	23:51	00:01 +1	—	00:11 +1	00:21 +1	—	00:31 +1	—	00:54 +1
Nanterre - Université Rer	23:57	23:43	00:07 +1	00:17 +1	00:03 +1	00:27 +1	00:37 +1	00:23 +1	00:47 +1	00:43 +1	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.

Route Path (Streets & Roads)

Outbound: Nanterre - Université Rer ➞ Gare de Cergy-le-Haut

Allée de Corse - Place André Malraux - Rue d'Achères - Avenue Jean Moulin - Rue Georges Clemenceau - Square Columbia - Place des Ouvrages - Rue de l'Embarquement

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

Rue de l'Embarquement - Place des Ouvrages - Square Columbia - 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

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, Friday, Saturday, Sunday.
What time does the A bus stop working?

Services on the A - Remplacement RER A bus stop at 01:15 ⁺¹ on Monday, Friday, Saturday, Sunday.
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 Gare de Cergy-le-Haut. A (Remplacement RER A) is operational during on weekends.

Additional information: A has 10 stops and the total trip duration for this route is approximately 90 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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Last updated on July 3, 2026