RER UZEL81

RER

Boissy-Saint-LégerCergy le Haut

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

Historical average delay — home ranking

+3.7 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: 7. 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: 7
Events confirmed by the source: 0
Events predicted by the source: 2
Unknown event type: 5
Cancelled runs, excluded: 0
No usable delay, excluded: 0

Latest source timestamp: 9/10/2026, 10:14:17 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

Boissy-Saint-Léger
Departure
Scheduled time21:02
Predicted by the source21:03(+1′)
Sucy-en-Brie - Bonneuil-sur-Marne
Arrival
Scheduled time21:05
Predicted by the source21:04(-1′)
Departure
Scheduled time21:05
Predicted by the source21:05(0′)
La Varenne Saint-Hilaire - Chennevières-sur-Marne
Arrival
Scheduled time21:07
Predicted by the source21:07(0′)
Departure
Scheduled time21:08
Predicted by the source21:08(0′)
Champigny
Arrival
Scheduled time21:09
Predicted by the source21:09(0′)
Departure
Scheduled time21:10
Predicted by the source21:10(0′)
Le Parc de Saint-Maur RER
Arrival
Scheduled time21:12
Predicted by the source21:11(-1′)
Departure
Scheduled time21:12
Predicted by the source21:13(+1′)
Saint-Maur-des-Fossés - Créteil
Arrival
Scheduled time21:13
Predicted by the source21:14(+1′)
Departure
Scheduled time21:14
Predicted by the source21:15(+1′)
Joinville-le-Pont
Arrival
Scheduled time21:15
Predicted by the source21:16(+1′)
Departure
Scheduled time21:16
Predicted by the source21:17(+1′)
Nogent-sur-Marne
Arrival
Scheduled time21:17
Predicted by the source21:18(+1′)
Departure
Scheduled time21:18
Predicted by the source21:20(+2′)
Fontenay-sous-Bois
Arrival
Scheduled time21:19
Predicted by the source21:20(+1′)
Departure
Scheduled time21:20
Predicted by the source21:21(+1′)
Vincennes
Arrival
Scheduled time21:22
Predicted by the source21:23(+1′)
Departure
Scheduled time21:22
Predicted by the source21:24(+2′)
Nation
Arrival
Scheduled time21:25
Predicted by the source21:26(+1′)
Departure
Scheduled time21:25
Predicted by the source21:27(+2′)
Paris Gare de Lyon
Arrival
Scheduled time21:27
Predicted by the source21:28(+1′)
Departure
Scheduled time21:28
Predicted by the source21:29(+1′)
Châtelet les Halles
Arrival
Scheduled time21:30
Predicted by the source21:31(+1′)
Departure
Scheduled time21:31
Predicted by the source21:32(+1′)
Auber
Arrival
Scheduled time21:33
Predicted by the source21:33(0′)
Departure
Scheduled time21:33
Predicted by the source21:34(+1′)
Charles-de-Gaulle Étoile
Arrival
Scheduled time21:36
Predicted by the source21:36(0′)
Departure
Scheduled time21:36
Predicted by the source21:37(+1′)
La Grande Arche de la Défense
Arrival
Scheduled time21:40
Predicted by the source21:40(0′)
Departure
Scheduled time21:40
Predicted by the source21:41(+1′)
Nanterre Préfecture - RER
Arrival
Scheduled time21:42
Predicted by the source21:42(0′)
Departure
Scheduled time21:44
Predicted by the source21:45(+1′)
Houilles - Carrières-sur-Seine
Arrival
Scheduled time21:48
Predicted by the source21:49(+1′)
Departure
Scheduled time21:49
Predicted by the source21:49(0′)
Sartrouville
Arrival
Scheduled time21:52
Predicted by the source21:53(+1′)
Departure
Scheduled time21:52
Predicted by the source21:53(+1′)
Maisons-Laffitte
Arrival
Scheduled time21:54
Predicted by the source21:55(+1′)
Departure
Scheduled time21:54
Predicted by the source21:56(+2′)
Achères Ville
Arrival
Scheduled time22:00
Predicted by the source22:01(+1′)
Departure
Scheduled time22:01
Predicted by the source22:01(0′)
Conflans Fin d'Oise
Arrival
Scheduled time22:03
Predicted by the source22:04(+1′)
Departure
Scheduled time22:03
Predicted by the source22:04(+1′)
Neuville Université
Arrival
Scheduled time22:06
Predicted by the source22:06(0′)
Departure
Scheduled time22:06
Predicted by the source22:06(0′)
Cergy Préfecture
Arrival
Scheduled time22:09
Predicted by the source22:09(0′)
Departure
Scheduled time22:10
Predicted by the source22:10(0′)
Cergy Saint-Christophe
Arrival
Scheduled time22:13
Predicted by the source22:13(0′)
Departure
Scheduled time22:14
Predicted by the source22:13(-1′)
Cergy le Haut
Arrival
Scheduled time22:16
Predicted by the source22:16(0′)

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+1.6 min

max delay+20 min

runs reported7

stops26

Delay values

DateDelay (min)

2026-08-27-0.04

2026-08-28-0.24

2026-09-047.423076923076923

2026-09-070.19230769230769232

2026-09-08-0.11538461538461539

2026-09-093.230769230769231

2026-09-100.7692307692307693

Typical schedule

Stops and times of RER UZEL81 from Boissy-Saint-Léger to Cergy le Haut on a typical weekday. Actual times may vary.

StopArrivalDeparture

Boissy-Saint-Léger—21:02

Sucy-en-Brie - Bonneuil-sur-Marne21:0521:05

La Varenne Saint-Hilaire - Chennevières-sur-Marne21:0721:08

Champigny21:0921:10

Le Parc de Saint-Maur RER21:1221:12

Saint-Maur-des-Fossés - Créteil21:1321:14

Joinville-le-Pont21:1521:16

Nogent-sur-Marne21:1721:18

Fontenay-sous-Bois21:1921:20

Vincennes21:2221:22

Nation21:2521:25

Paris Gare de Lyon21:2721:28

Châtelet les Halles21:3021:31

Auber21:3321:33

Charles-de-Gaulle Étoile21:3621:36

La Grande Arche de la Défense21:4021:40

Nanterre Préfecture - RER21:4221:44

Houilles - Carrières-sur-Seine21:4821:49

Sartrouville21:5221:52

Maisons-Laffitte21:5421:54

Achères Ville22:0022:01

Conflans Fin d'Oise22:0322:03

Neuville Université22:0622:06

Cergy Préfecture22:0922:10

Cergy Saint-Christophe22:1322:14

Cergy le Haut22:16—

Frequently asked questions

What time does RER UZEL81 depart?

RER UZEL81 departs from Boissy-Saint-Léger at 21:02 (typical schedule from reported times). Actual times may vary.

How many stops does RER UZEL81 make?

RER UZEL81 connects Boissy-Saint-Léger to Cergy le Haut with 26 stops.

Is RER UZEL81 on time?

Over the reported runs, RER UZEL81 was reported on time 100% of runs, with an average delay of 1.6 minutes.

Other trains on this line

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

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