RER UZEL77

RER

Boissy-Saint-LégerCergy le Haut

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

Historical average delay — home ranking

+5.4 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: 5
Events confirmed by the source: 0
Events predicted by the source: 2
Unknown event type: 3
Cancelled runs, excluded: 0
No usable delay, excluded: 0

Latest source timestamp: 9/10/2026, 9:53:40 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 time20:42
Predicted by the source20:43(+1′)
Sucy-en-Brie - Bonneuil-sur-Marne
Arrival
Scheduled time20:45
Predicted by the source20:44(-1′)
Departure
Scheduled time20:45
Predicted by the source20:46(+1′)
La Varenne Saint-Hilaire - Chennevières-sur-Marne
Arrival
Scheduled time20:47
Predicted by the source20:48(+1′)
Departure
Scheduled time20:48
Predicted by the source20:49(+1′)
Champigny
Arrival
Scheduled time20:49
Predicted by the source20:50(+1′)
Departure
Scheduled time20:50
Predicted by the source20:51(+1′)
Le Parc de Saint-Maur RER
Arrival
Scheduled time20:52
Predicted by the source20:52(0′)
Departure
Scheduled time20:52
Predicted by the source20:53(+1′)
Saint-Maur-des-Fossés - Créteil
Arrival
Scheduled time20:53
Predicted by the source20:54(+1′)
Departure
Scheduled time20:54
Predicted by the source20:55(+1′)
Joinville-le-Pont
Arrival
Scheduled time20:55
Predicted by the source20:56(+1′)
Departure
Scheduled time20:56
Predicted by the source20:57(+1′)
Nogent-sur-Marne
Arrival
Scheduled time20:57
Predicted by the source20:58(+1′)
Departure
Scheduled time20:58
Predicted by the source20:59(+1′)
Fontenay-sous-Bois
Arrival
Scheduled time20:59
Predicted by the source21:00(+1′)
Departure
Scheduled time21:00
Predicted by the source21:02(+2′)
Vincennes
Arrival
Scheduled time21:02
Predicted by the source21:03(+1′)
Departure
Scheduled time21:02
Predicted by the source21:04(+2′)
Nation
Arrival
Scheduled time21:05
Predicted by the source21:06(+1′)
Departure
Scheduled time21:05
Predicted by the source21:07(+2′)
Paris Gare de Lyon
Arrival
Scheduled time21:07
Predicted by the source21:09(+2′)
Departure
Scheduled time21:08
Predicted by the source21:10(+2′)
Châtelet les Halles
Arrival
Scheduled time21:10
Predicted by the source21:12(+2′)
Departure
Scheduled time21:11
Predicted by the source21:13(+2′)
Auber
Arrival
Scheduled time21:13
Predicted by the source21:14(+1′)
Departure
Scheduled time21:13
Predicted by the source21:15(+2′)
Charles-de-Gaulle Étoile
Arrival
Scheduled time21:16
Predicted by the source21:17(+1′)
Departure
Scheduled time21:16
Predicted by the source21:18(+2′)
La Grande Arche de la Défense
Arrival
Scheduled time21:20
Predicted by the source21:21(+1′)
Departure
Scheduled time21:20
Predicted by the source21:22(+2′)
Nanterre Préfecture - RER
Arrival
Scheduled time21:22
Predicted by the source21:23(+1′)
Departure
Scheduled time21:24
Predicted by the source21:25(+1′)
Houilles - Carrières-sur-Seine
Arrival
Scheduled time21:28
Predicted by the source21:29(+1′)
Departure
Scheduled time21:28
Predicted by the source21:28(0′)
Sartrouville
Arrival
Scheduled time21:31
Predicted by the source21:32(+1′)
Departure
Scheduled time21:32
Predicted by the source21:32(0′)
Maisons-Laffitte
Arrival
Scheduled time21:33
Predicted by the source21:34(+1′)
Departure
Scheduled time21:34
Predicted by the source21:34(0′)
Achères Ville
Arrival
Scheduled time21:39
Predicted by the source21:41(+2′)
Departure
Scheduled time21:40
Predicted by the source21:41(+1′)
Conflans Fin d'Oise
Arrival
Scheduled time21:42
Predicted by the source21:43(+1′)
Departure
Scheduled time21:43
Predicted by the source21:44(+1′)
Neuville Université
Arrival
Scheduled time21:45
Predicted by the source21:47(+2′)
Departure
Scheduled time21:46
Predicted by the source21:47(+1′)
Cergy Préfecture
Arrival
Scheduled time21:48
Predicted by the source21:50(+2′)
Departure
Scheduled time21:49
Predicted by the source21:51(+2′)
Cergy Saint-Christophe
Arrival
Scheduled time21:53
Predicted by the source21:54(+1′)
Departure
Scheduled time21:53
Predicted by the source21:55(+2′)
Cergy le Haut
Arrival
Scheduled time21:56
Predicted by the source21:58(+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+2.6 min

max delay+21 min

runs reported5

stops26

Delay values

DateDelay (min)

2026-09-048.153846153846153

2026-09-071.5769230769230769

2026-09-080.6153846153846154

2026-09-091.4230769230769231

2026-09-101.3076923076923077

Typical schedule

Stops and times of RER UZEL77 from Boissy-Saint-Léger to Cergy le Haut on a typical weekday. Actual times may vary.

StopArrivalDeparture

Boissy-Saint-Léger—20:42

Sucy-en-Brie - Bonneuil-sur-Marne20:4520:45

La Varenne Saint-Hilaire - Chennevières-sur-Marne20:4720:48

Champigny20:4920:50

Le Parc de Saint-Maur RER20:5220:52

Saint-Maur-des-Fossés - Créteil20:5320:54

Joinville-le-Pont20:5520:56

Nogent-sur-Marne20:5720:58

Fontenay-sous-Bois20:5921:00

Vincennes21:0221:02

Nation21:0521:05

Paris Gare de Lyon21:0721:08

Châtelet les Halles21:1021:11

Auber21:1321:13

Charles-de-Gaulle Étoile21:1621:16

La Grande Arche de la Défense21:2021:20

Nanterre Préfecture - RER21:2221:24

Houilles - Carrières-sur-Seine21:2821:28

Sartrouville21:3121:32

Maisons-Laffitte21:3321:34

Achères Ville21:3921:40

Conflans Fin d'Oise21:4221:43

Neuville Université21:4521:46

Cergy Préfecture21:4821:49

Cergy Saint-Christophe21:5321:53

Cergy le Haut21:56—

Frequently asked questions

What time does RER UZEL77 depart?

RER UZEL77 departs from Boissy-Saint-Léger at 20:42 (typical schedule from reported times). Actual times may vary.

How many stops does RER UZEL77 make?

RER UZEL77 connects Boissy-Saint-Léger to Cergy le Haut with 26 stops.

Is RER UZEL77 on time?

Over the reported runs, RER UZEL77 was reported on time 100% of runs, with an average delay of 2.6 minutes.

Other trains on this line

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

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