RER UZEL51

RER

Boissy-Saint-LégerCergy le Haut

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

Historical average delay — home ranking

+1.4 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, 7:08:47 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 time17:56
Predicted by the source17:57(+1′)
Sucy-en-Brie - Bonneuil-sur-Marne
Arrival
Scheduled time17:58
Predicted by the source17:58(0′)
Departure
Scheduled time17:58
Predicted by the source17:59(+1′)
La Varenne Saint-Hilaire - Chennevières-sur-Marne
Arrival
Scheduled time18:01
Predicted by the source18:01(0′)
Departure
Scheduled time18:01
Predicted by the source18:02(+1′)
Champigny
Arrival
Scheduled time18:03
Predicted by the source18:03(0′)
Departure
Scheduled time18:03
Predicted by the source18:04(+1′)
Le Parc de Saint-Maur RER
Arrival
Scheduled time18:05
Predicted by the source18:05(0′)
Departure
Scheduled time18:06
Predicted by the source18:06(0′)
Saint-Maur-des-Fossés - Créteil
Arrival
Scheduled time18:07
Predicted by the source18:07(0′)
Departure
Scheduled time18:08
Predicted by the source18:08(0′)
Joinville-le-Pont
Arrival
Scheduled time18:10
Predicted by the source18:09(-1′)
Departure
Scheduled time18:10
Predicted by the source18:10(0′)
Nogent-sur-Marne
Arrival
Scheduled time18:12
Predicted by the source18:11(-1′)
Departure
Scheduled time18:12
Predicted by the source18:13(+1′)
Fontenay-sous-Bois
Arrival
Scheduled time18:14
Predicted by the source18:14(0′)
Departure
Scheduled time18:15
Predicted by the source18:16(+1′)
Vincennes
Arrival
Scheduled time18:17
Predicted by the source18:17(0′)
Departure
Scheduled time18:18
Predicted by the source18:19(+1′)
Nation
Arrival
Scheduled time18:20
Predicted by the source18:21(+1′)
Departure
Scheduled time18:21
Predicted by the source18:23(+2′)
Paris Gare de Lyon
Arrival
Scheduled time18:23
Predicted by the source18:25(+2′)
Departure
Scheduled time18:24
Predicted by the source18:26(+2′)
Châtelet les Halles
Arrival
Scheduled time18:26
Predicted by the source18:28(+2′)
Departure
Scheduled time18:27
Predicted by the source18:30(+3′)
Auber
Arrival
Scheduled time18:29
Predicted by the source18:31(+2′)
Departure
Scheduled time18:30
Predicted by the source18:32(+2′)
Charles-de-Gaulle Étoile
Arrival
Scheduled time18:33
Predicted by the source18:34(+1′)
Departure
Scheduled time18:33
Predicted by the source18:35(+2′)
La Grande Arche de la Défense
Arrival
Scheduled time18:37
Predicted by the source18:38(+1′)
Departure
Scheduled time18:38
Predicted by the source18:40(+2′)
Nanterre Préfecture - RER
Arrival
Scheduled time18:39
Predicted by the source18:41(+2′)
Departure
Scheduled time18:41
Predicted by the source18:43(+2′)
Houilles - Carrières-sur-Seine
Arrival
Scheduled time18:45
Predicted by the source18:48(+3′)
Departure
Scheduled time18:46
Predicted by the source18:47(+1′)
Sartrouville
Arrival
Scheduled time18:48
Predicted by the source18:51(+3′)
Departure
Scheduled time18:49
Predicted by the source18:52(+3′)
Maisons-Laffitte
Arrival
Scheduled time18:50
Predicted by the source18:54(+4′)
Departure
Scheduled time18:51
Predicted by the source18:54(+3′)
Achères Ville
Arrival
Scheduled time18:57
Predicted by the source19:00(+3′)
Departure
Scheduled time18:57
Predicted by the source19:00(+3′)
Conflans Fin d'Oise
Arrival
Scheduled time19:00
Predicted by the source19:02(+2′)
Departure
Scheduled time19:00
Predicted by the source19:03(+3′)
Neuville Université
Arrival
Scheduled time19:03
Predicted by the source19:06(+3′)
Departure
Scheduled time19:03
Predicted by the source19:06(+3′)
Cergy Préfecture
Arrival
Scheduled time19:06
Predicted by the source19:09(+3′)
Departure
Scheduled time19:07
Predicted by the source19:10(+3′)
Cergy Saint-Christophe
Arrival
Scheduled time19:10
Predicted by the source19:13(+3′)
Departure
Scheduled time19:11
Predicted by the source19:14(+3′)
Cergy le Haut
Arrival
Scheduled time19:14
Predicted by the source19:17(+3′)

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)

2026-09-030.34615384615384615

2026-09-04-0.2692307692307692

2026-09-070.38461538461538464

2026-09-081.6923076923076923

2026-09-090.7692307692307693

2026-09-101.8076923076923077

Typical schedule

Stops and times of RER UZEL51 from Boissy-Saint-Léger to Cergy le Haut on a typical weekday. Actual times may vary.

StopArrivalDeparture

Boissy-Saint-Léger—17:56

Sucy-en-Brie - Bonneuil-sur-Marne17:5817:58

La Varenne Saint-Hilaire - Chennevières-sur-Marne18:0118:01

Champigny18:0318:03

Le Parc de Saint-Maur RER18:0518:06

Saint-Maur-des-Fossés - Créteil18:0718:08

Joinville-le-Pont18:1018:10

Nogent-sur-Marne18:1218:12

Fontenay-sous-Bois18:1418:15

Vincennes18:1718:18

Nation18:2018:21

Paris Gare de Lyon18:2318:24

Châtelet les Halles18:2618:27

Auber18:2918:30

Charles-de-Gaulle Étoile18:3318:33

La Grande Arche de la Défense18:3718:38

Nanterre Préfecture - RER18:3918:41

Houilles - Carrières-sur-Seine18:4518:46

Sartrouville18:4818:49

Maisons-Laffitte18:5018:51

Achères Ville18:5718:57

Conflans Fin d'Oise19:0019:00

Neuville Université19:0319:03

Cergy Préfecture19:0619:07

Cergy Saint-Christophe19:1019:11

Cergy le Haut19:14—

Frequently asked questions

What time does RER UZEL51 depart?

RER UZEL51 departs from Boissy-Saint-Léger at 17:56 (typical schedule from reported times). Actual times may vary.

How many stops does RER UZEL51 make?

RER UZEL51 connects Boissy-Saint-Léger to Cergy le Haut with 26 stops.

Is RER UZEL51 on time?

Over the reported runs, RER UZEL51 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.

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