RER UZAR99

RER

Boissy-Saint-LégerCergy le Haut

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

Historical average delay — home ranking

+1.3 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: 4. 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: 1
Unknown event type: 3
Cancelled runs, excluded: 0
No usable delay, excluded: 1

Latest source timestamp: 9/10/2026, 3:41:46 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 time14:30
Predicted by the source14:32(+2′)
Sucy-en-Brie - Bonneuil-sur-Marne
Arrival
Scheduled time14:32
Predicted by the source14:34(+2′)
Departure
Scheduled time14:32
Predicted by the source14:35(+3′)
La Varenne Saint-Hilaire - Chennevières-sur-Marne
Arrival
Scheduled time14:35
Predicted by the source14:36(+1′)
Departure
Scheduled time14:35
Predicted by the source14:38(+3′)
Champigny
Arrival
Scheduled time14:37
Predicted by the source14:38(+1′)
Departure
Scheduled time14:37
Predicted by the source14:40(+3′)
Le Parc de Saint-Maur RER
Arrival
Scheduled time14:39
Predicted by the source14:41(+2′)
Departure
Scheduled time14:40
Predicted by the source14:42(+2′)
Saint-Maur-des-Fossés - Créteil
Arrival
Scheduled time14:41
Predicted by the source14:42(+1′)
Departure
Scheduled time14:41
Predicted by the source14:44(+3′)
Joinville-le-Pont
Arrival
Scheduled time14:43
Predicted by the source14:45(+2′)
Departure
Scheduled time14:44
Predicted by the source14:46(+2′)
Nogent-sur-Marne
Arrival
Scheduled time14:46
Predicted by the source14:47(+1′)
Departure
Scheduled time14:46
Predicted by the source14:48(+2′)
Fontenay-sous-Bois
Arrival
Scheduled time14:48
Predicted by the source14:49(+1′)
Departure
Scheduled time14:48
Predicted by the source14:51(+3′)
Vincennes
Arrival
Scheduled time14:50
Predicted by the source14:53(+3′)
Departure
Scheduled time14:51
Predicted by the source14:54(+3′)
Nation
Arrival
Scheduled time14:53
Predicted by the source14:56(+3′)
Departure
Scheduled time14:54
Predicted by the source14:57(+3′)
Paris Gare de Lyon
Arrival
Scheduled time14:56
Predicted by the source14:58(+2′)
Departure
Scheduled time14:57
Predicted by the source14:59(+2′)
Châtelet les Halles
Arrival
Scheduled time14:59
Predicted by the source15:01(+2′)
Departure
Scheduled time15:00
Predicted by the source15:02(+2′)
Auber
Arrival
Scheduled time15:02
Predicted by the source15:03(+1′)
Departure
Scheduled time15:03
Predicted by the source15:04(+1′)
Charles-de-Gaulle Étoile
Arrival
Scheduled time15:05
Predicted by the source15:06(+1′)
Departure
Scheduled time15:06
Predicted by the source15:07(+1′)
La Grande Arche de la Défense
Arrival
Scheduled time15:09
Predicted by the source15:10(+1′)
Departure
Scheduled time15:10
Predicted by the source15:11(+1′)
Nanterre Préfecture - RER
Arrival
Scheduled time15:11
Predicted by the source15:13(+2′)
Departure
Scheduled time15:14
Predicted by the source15:15(+1′)
Houilles - Carrières-sur-Seine
Arrival
Scheduled time15:17
Predicted by the source15:18(+1′)
Departure
Scheduled time15:18
Predicted by the source15:18(0′)
Sartrouville
Arrival
Scheduled time15:21
Predicted by the source15:21(0′)
Departure
Scheduled time15:21
Predicted by the source15:22(+1′)
Maisons-Laffitte
Arrival
Scheduled time15:23
Predicted by the source15:23(0′)
Departure
Scheduled time15:23
Predicted by the source15:24(+1′)
Achères Ville
Arrival
Scheduled time15:29
Predicted by the source15:30(+1′)
Departure
Scheduled time15:29
Predicted by the source15:29(0′)
Conflans Fin d'Oise
Arrival
Scheduled time15:32
Predicted by the source15:32(0′)
Departure
Scheduled time15:32
Predicted by the source15:32(0′)
Neuville Université
Arrival
Scheduled time15:35
Predicted by the source15:35(0′)
Departure
Scheduled time15:35
Predicted by the source15:35(0′)
Cergy Préfecture
Arrival
Scheduled time15:38
Predicted by the source15:38(0′)
Departure
Scheduled time15:38
Predicted by the source15:39(+1′)
Cergy Saint-Christophe
Arrival
Scheduled time15:42
Predicted by the source15:42(0′)
Departure
Scheduled time15:42
Predicted by the source15:42(0′)
Cergy le Haut
Arrival
Scheduled time15:45
Predicted by the source15:45(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 time—

average delay+1.5 min

max delay+4 min

runs reported5

stops26

Delay values

DateDelay (min)

2026-09-030.5769230769230769

2026-09-070.7692307692307693

2026-09-082.6923076923076925

2026-09-091.8076923076923077

2026-09-101.5384615384615385

Typical schedule

Stops and times of RER UZAR99 from Boissy-Saint-Léger to Cergy le Haut on a typical weekday. Actual times may vary.

StopArrivalDeparture

Boissy-Saint-Léger—14:30

Sucy-en-Brie - Bonneuil-sur-Marne14:3214:32

La Varenne Saint-Hilaire - Chennevières-sur-Marne14:3514:35

Champigny14:3714:37

Le Parc de Saint-Maur RER14:3914:40

Saint-Maur-des-Fossés - Créteil14:4114:41

Joinville-le-Pont14:4314:44

Nogent-sur-Marne14:4614:46

Fontenay-sous-Bois14:4814:48

Vincennes14:5014:51

Nation14:5314:54

Paris Gare de Lyon14:5614:57

Châtelet les Halles14:5915:00

Auber15:0215:03

Charles-de-Gaulle Étoile15:0515:06

La Grande Arche de la Défense15:0915:10

Nanterre Préfecture - RER15:1115:14

Houilles - Carrières-sur-Seine15:1715:18

Sartrouville15:2115:21

Maisons-Laffitte15:2315:23

Achères Ville15:2915:29

Conflans Fin d'Oise15:3215:32

Neuville Université15:3515:35

Cergy Préfecture15:3815:38

Cergy Saint-Christophe15:4215:42

Cergy le Haut15:45—

Frequently asked questions

What time does RER UZAR99 depart?

RER UZAR99 departs from Boissy-Saint-Léger at 14:30 (typical schedule from reported times). Actual times may vary.

How many stops does RER UZAR99 make?

RER UZAR99 connects Boissy-Saint-Léger to Cergy le Haut with 26 stops.

Is RER UZAR99 on time?

Not enough reported runs yet to establish punctuality.

Other trains on this line

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

Back to the list