RER UZAR55

RER

Boissy-Saint-LégerCergy le Haut

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

Historical average delay — home ranking

+4.2 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: 8
Events confirmed by the source: 0
Events predicted by the source: 1
Unknown event type: 4
Cancelled runs, excluded: 2
No usable delay, excluded: 1

Latest source timestamp: 9/10/2026, 12:08:07 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 time10:50
Predicted by the source10:51(+1′)
Sucy-en-Brie - Bonneuil-sur-Marne
Arrival
Scheduled time10:52
Predicted by the source10:52(0′)
Departure
Scheduled time10:52
Predicted by the source10:54(+2′)
La Varenne Saint-Hilaire - Chennevières-sur-Marne
Arrival
Scheduled time10:55
Predicted by the source10:55(0′)
Departure
Scheduled time10:55
Predicted by the source10:57(+2′)
Champigny
Arrival
Scheduled time10:57
Predicted by the source10:58(+1′)
Departure
Scheduled time10:57
Predicted by the source11:00(+3′)
Le Parc de Saint-Maur RER
Arrival
Scheduled time10:59
Predicted by the source11:01(+2′)
Departure
Scheduled time11:00
Predicted by the source11:02(+2′)
Saint-Maur-des-Fossés - Créteil
Arrival
Scheduled time11:01
Predicted by the source11:03(+2′)
Departure
Scheduled time11:01
Predicted by the source11:04(+3′)
Joinville-le-Pont
Arrival
Scheduled time11:03
Predicted by the source11:05(+2′)
Departure
Scheduled time11:04
Predicted by the source11:07(+3′)
Nogent-sur-Marne
Arrival
Scheduled time11:06
Predicted by the source11:08(+2′)
Departure
Scheduled time11:06
Predicted by the source11:09(+3′)
Fontenay-sous-Bois
Arrival
Scheduled time11:08
Predicted by the source11:10(+2′)
Departure
Scheduled time11:08
Predicted by the source11:11(+3′)
Vincennes
Arrival
Scheduled time11:10
Predicted by the source11:13(+3′)
Departure
Scheduled time11:11
Predicted by the source11:14(+3′)
Nation
Arrival
Scheduled time11:13
Predicted by the source11:16(+3′)
Departure
Scheduled time11:14
Predicted by the source11:17(+3′)
Paris Gare de Lyon
Arrival
Scheduled time11:16
Predicted by the source11:19(+3′)
Departure
Scheduled time11:17
Predicted by the source11:21(+4′)
Châtelet les Halles
Arrival
Scheduled time11:19
Predicted by the source11:22(+3′)
Departure
Scheduled time11:20
Predicted by the source11:24(+4′)
Auber
Arrival
Scheduled time11:22
Predicted by the source11:25(+3′)
Departure
Scheduled time11:23
Predicted by the source11:26(+3′)
Charles-de-Gaulle Étoile
Arrival
Scheduled time11:25
Predicted by the source11:28(+3′)
Departure
Scheduled time11:26
Predicted by the source11:30(+4′)
La Grande Arche de la Défense
Arrival
Scheduled time11:29
Predicted by the source11:32(+3′)
Departure
Scheduled time11:30
Predicted by the source11:34(+4′)
Nanterre Préfecture - RER
Arrival
Scheduled time11:31
Predicted by the source11:35(+4′)
Departure
Scheduled time11:34
Predicted by the source11:37(+3′)
Houilles - Carrières-sur-Seine
Arrival
Scheduled time11:37
Predicted by the source11:40(+3′)
Departure
Scheduled time11:38
Predicted by the source11:40(+2′)
Sartrouville
Arrival
Scheduled time11:41
Predicted by the source11:44(+3′)
Departure
Scheduled time11:41
Predicted by the source11:44(+3′)
Maisons-Laffitte
Arrival
Scheduled time11:43
Predicted by the source11:46(+3′)
Departure
Scheduled time11:43
Predicted by the source11:47(+4′)
Achères Ville
Arrival
Scheduled time11:49
Predicted by the source11:53(+4′)
Departure
Scheduled time11:49
Predicted by the source11:53(+4′)
Conflans Fin d'Oise
Arrival
Scheduled time11:52
Predicted by the source11:56(+4′)
Departure
Scheduled time11:52
Predicted by the source11:56(+4′)
Neuville Université
Arrival
Scheduled time11:55
Predicted by the source11:59(+4′)
Departure
Scheduled time11:55
Predicted by the source11:59(+4′)
Cergy Préfecture
Arrival
Scheduled time11:58
Predicted by the source12:02(+4′)
Departure
Scheduled time11:58
Predicted by the source12:03(+5′)
Cergy Saint-Christophe
Arrival
Scheduled time12:02
Predicted by the source12:06(+4′)
Departure
Scheduled time12:02
Predicted by the source12:07(+5′)
Cergy le Haut
Arrival
Scheduled time12:05
Predicted by the source12:10(+5′)

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.

Cancelled runs are excluded from the punctuality calculation.

runs reported on time—

average delay+1.4 min

max delay+12 min

runs reported6

cancelled runs2

stops26

Delay values

DateDelay (min)

2026-08-310.16666666666666666

2026-09-030.5

2026-09-070.8076923076923077

2026-09-082.32

2026-09-091.2692307692307692

2026-09-103.3076923076923075

Typical schedule

Stops and times of RER UZAR55 from Boissy-Saint-Léger to Cergy le Haut on a typical weekday. Actual times may vary.

StopArrivalDeparture

Boissy-Saint-Léger—10:50

Sucy-en-Brie - Bonneuil-sur-Marne10:5210:52

La Varenne Saint-Hilaire - Chennevières-sur-Marne10:5510:55

Champigny10:5710:57

Le Parc de Saint-Maur RER10:5911:00

Saint-Maur-des-Fossés - Créteil11:0111:01

Joinville-le-Pont11:0311:04

Nogent-sur-Marne11:0611:06

Fontenay-sous-Bois11:0811:08

Vincennes11:1011:11

Nation11:1311:14

Paris Gare de Lyon11:1611:17

Châtelet les Halles11:1911:20

Auber11:2211:23

Charles-de-Gaulle Étoile11:2511:26

La Grande Arche de la Défense11:2911:30

Nanterre Préfecture - RER11:3111:34

Houilles - Carrières-sur-Seine11:3711:38

Sartrouville11:4111:41

Maisons-Laffitte11:4311:43

Achères Ville11:4911:49

Conflans Fin d'Oise11:5211:52

Neuville Université11:5511:55

Cergy Préfecture11:5811:58

Cergy Saint-Christophe12:0212:02

Cergy le Haut12:05—

Frequently asked questions

What time does RER UZAR55 depart?

RER UZAR55 departs from Boissy-Saint-Léger at 10:50 (typical schedule from reported times). Actual times may vary.

How many stops does RER UZAR55 make?

RER UZAR55 connects Boissy-Saint-Léger to Cergy le Haut with 26 stops.

Is RER UZAR55 on time?

Over the reported runs, every run of RER UZAR55 was cancelled (2 runs): punctuality cannot be established.

Other trains on this line

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

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