RER NANI42

RER

Cergy le HautBoissy-Saint-Léger

Passages not confirmedTimes reported by the data source. Passages are not confirmed.

Historical average delay — home ranking

+1.6 min

Average of available delays per run over the 30 days before calculation, with equal weight for each eligible run. This is not the current delay.

Runs used: 5. Calculated on: 9/11/2026, 1:00:25 AM (Europe/Paris).

This average can be available without a complete route. The route statistics below use only recorded routes with their stops.

Calculation window: 8/12/2026, 1:00:25 AM – 9/11/2026, 1:00:25 AM (Europe/Paris).

Runs in the window: 6
Events confirmed by the source: 0
Events predicted by the source: 2
Unknown event type: 3
Cancelled runs, excluded: 0
No usable delay, excluded: 1

Latest source timestamp: 9/10/2026, 6:25:45 PM (Europe/Paris).

Runs are identified within each source. Identities across sources are kept separate without a proven match. Exclusions can overlap.

Latest available run: these times are historical.

Stops on the latest run

Cergy le Haut
Departure
Scheduled time17:01
Predicted by the source17:02(+1′)
Cergy Saint-Christophe
Arrival
Scheduled time17:03
Predicted by the source17:04(+1′)
Departure
Scheduled time17:04
Predicted by the source17:05(+1′)
Cergy Préfecture
Arrival
Scheduled time17:07
Predicted by the source17:08(+1′)
Departure
Scheduled time17:07
Predicted by the source17:09(+2′)
Neuville Université
Arrival
Scheduled time17:10
Predicted by the source17:12(+2′)
Departure
Scheduled time17:11
Predicted by the source17:12(+1′)
Conflans Fin d'Oise
Arrival
Scheduled time17:13
Predicted by the source17:15(+2′)
Departure
Scheduled time17:14
Predicted by the source17:14(0′)
Achères Ville
Arrival
Scheduled time17:16
Predicted by the source17:18(+2′)
Departure
Scheduled time17:16
Predicted by the source17:18(+2′)
Maisons-Laffitte
Arrival
Scheduled time17:22
Predicted by the source17:23(+1′)
Departure
Scheduled time17:22
Predicted by the source17:23(+1′)
Sartrouville
Arrival
Scheduled time17:24
Predicted by the source17:26(+2′)
Departure
Scheduled time17:24
Predicted by the source17:26(+2′)
Houilles - Carrières-sur-Seine
Arrival
Scheduled time17:27
Predicted by the source17:31(+4′)
Departure
Scheduled time17:28
Predicted by the source17:31(+3′)
Nanterre Préfecture - RER
Arrival
Scheduled time17:32
Predicted by the source17:35(+3′)
Departure
Scheduled time17:34
Predicted by the source17:35(+1′)
La Grande Arche de la Défense
Arrival
Scheduled time17:35
Predicted by the source17:37(+2′)
Departure
Scheduled time17:36
Predicted by the source17:37(+1′)
Charles-de-Gaulle Étoile
Arrival
Scheduled time17:40
Predicted by the source17:41(+1′)
Departure
Scheduled time17:40
Predicted by the source17:42(+2′)
Auber
Arrival
Scheduled time17:43
Predicted by the source17:45(+2′)
Departure
Scheduled time17:44
Predicted by the source17:45(+1′)
Châtelet les Halles
Arrival
Scheduled time17:46
Predicted by the source17:48(+2′)
Departure
Scheduled time17:47
Predicted by the source17:48(+1′)
Paris Gare de Lyon
Arrival
Scheduled time17:50
Predicted by the source17:51(+1′)
Departure
Scheduled time17:50
Predicted by the source17:52(+2′)
Nation
Arrival
Scheduled time17:52
Predicted by the source17:54(+2′)
Departure
Scheduled time17:53
Predicted by the source17:54(+1′)
Vincennes
Arrival
Scheduled time17:56
Predicted by the source17:58(+2′)
Departure
Scheduled time17:56
Predicted by the source17:58(+2′)
Fontenay-sous-Bois
Arrival
Scheduled time17:59
Predicted by the source18:00(+1′)
Departure
Scheduled time17:59
Predicted by the source18:01(+2′)
Nogent-sur-Marne
Arrival
Scheduled time18:01
Predicted by the source18:02(+1′)
Departure
Scheduled time18:01
Predicted by the source18:03(+2′)
Joinville-le-Pont
Arrival
Scheduled time18:03
Predicted by the source18:04(+1′)
Departure
Scheduled time18:03
Predicted by the source18:05(+2′)
Saint-Maur-des-Fossés - Créteil
Arrival
Scheduled time18:05
Predicted by the source18:07(+2′)
Departure
Scheduled time18:06
Predicted by the source18:07(+1′)
Le Parc de Saint-Maur RER
Arrival
Scheduled time18:07
Predicted by the source18:09(+2′)
Departure
Scheduled time18:08
Predicted by the source18:09(+1′)
Champigny
Arrival
Scheduled time18:09
Predicted by the source18:11(+2′)
Departure
Scheduled time18:10
Predicted by the source18:11(+1′)
La Varenne Saint-Hilaire - Chennevières-sur-Marne
Arrival
Scheduled time18:12
Predicted by the source18:13(+1′)
Departure
Scheduled time18:13
Predicted by the source18:14(+1′)
Sucy-en-Brie - Bonneuil-sur-Marne
Arrival
Scheduled time18:15
Predicted by the source18:17(+2′)
Departure
Scheduled time18:16
Predicted by the source18:17(+1′)
Boissy-Saint-Léger
Arrival
Scheduled time18:18
Predicted by the source18:20(+2′)

Punctuality of recorded routes

Reported delays per run with a complete route; separate from the ranking sample. A predicted delay does not confirm a passage.

runs reported on time100%

average delay+0.8 min

max delay+4 min

runs reported6

stops26

Delay values

DateDelay (min)

2026-09-031.1153846153846154

2026-09-040.8076923076923077

2026-09-07-0.3076923076923077

2026-09-081.1538461538461537

2026-09-090.6923076923076923

2026-09-101.4230769230769231

Typical schedule

Stops and times of RER NANI42 from Cergy le Haut to Boissy-Saint-Léger on a typical weekday. Actual times may vary.

StopArrivalDeparture

Cergy le Haut—17:01

Cergy Saint-Christophe17:0317:04

Cergy Préfecture17:0717:07

Neuville Université17:1017:11

Conflans Fin d'Oise17:1317:14

Achères Ville17:1617:16

Maisons-Laffitte17:2217:22

Sartrouville17:2417:24

Houilles - Carrières-sur-Seine17:2717:28

Nanterre Préfecture - RER17:3217:34

La Grande Arche de la Défense17:3517:36

Charles-de-Gaulle Étoile17:4017:40

Auber17:4317:44

Châtelet les Halles17:4617:47

Paris Gare de Lyon17:5017:50

Nation17:5217:53

Vincennes17:5617:56

Fontenay-sous-Bois17:5917:59

Nogent-sur-Marne18:0118:01

Joinville-le-Pont18:0318:03

Saint-Maur-des-Fossés - Créteil18:0518:06

Le Parc de Saint-Maur RER18:0718:08

Champigny18:0918:10

La Varenne Saint-Hilaire - Chennevières-sur-Marne18:1218:13

Sucy-en-Brie - Bonneuil-sur-Marne18:1518:16

Boissy-Saint-Léger18:18—

Frequently asked questions

What time does RER NANI42 depart?

RER NANI42 departs from Cergy le Haut at 17:01 (typical schedule from reported times). Actual times may vary.

How many stops does RER NANI42 make?

RER NANI42 connects Cergy le Haut to Boissy-Saint-Léger with 26 stops.

Is RER NANI42 on time?

Over the reported runs, RER NANI42 was reported on time 100% of runs, with an average delay of 0.8 minutes.

Other trains on this line

Live status and delays for the other trains serving the same stations.

Back to the list