RER 148821

RER

Musée d'OrsayDourdan la Forêt

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: 3. 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: 4
Events confirmed by the source: 0
Events predicted by the source: 0
Unknown event type: 3
Cancelled runs, excluded: 1
No usable delay, excluded: 0

Latest source timestamp: 9/6/2026, 3:48:29 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

Musée d'Orsay
Departure
Scheduled time14:38
Provenance unavailable14:39
Saint-Michel Notre-Dame
Arrival
Scheduled time14:41
Provenance unavailable14:41
Departure
Scheduled time14:41
Provenance unavailable14:42
Paris Austerlitz RER C
Arrival
Scheduled time14:44
Provenance unavailable14:45
Departure
Scheduled time14:45
Provenance unavailable14:45
Bibliothèque François Mitterrand
Arrival
Scheduled time14:48
Provenance unavailable14:49
Departure
Scheduled time14:50
Provenance unavailable14:51
Juvisy
Arrival
Scheduled time15:01
Provenance unavailable15:00
Departure
Scheduled time15:02
Provenance unavailable15:03
Savigny-sur-Orge
Arrival
Scheduled time15:05
Provenance unavailable15:05
Departure
Scheduled time15:06
Provenance unavailable15:07
Épinay-sur-Orge
Arrival
Scheduled time15:08
Provenance unavailable15:08
Departure
Scheduled time15:09
Provenance unavailable15:09
Sainte-Geneviève-des-Bois
Arrival
Scheduled time15:11
Provenance unavailable15:11
Departure
Scheduled time15:12
Provenance unavailable15:12
Saint-Michel-sur-Orge
Arrival
Scheduled time15:14
Provenance unavailable15:14
Departure
Scheduled time15:15
Provenance unavailable15:15
Brétigny
Arrival
Scheduled time15:18
Provenance unavailable15:18
Departure
Scheduled time15:19
Provenance unavailable15:20
La Norville - Saint-Germain-lès-Arpajon
Arrival
Scheduled time15:22
Provenance unavailable15:23
Departure
Scheduled time15:23
Provenance unavailable15:24
Arpajon
Arrival
Scheduled time15:25
Provenance unavailable15:25
Departure
Scheduled time15:26
Provenance unavailable15:27
Égly
Arrival
Scheduled time15:28
Provenance unavailable15:28
Departure
Scheduled time15:28
Provenance unavailable15:29
Breuillet - Bruyères-le-Châtel
Arrival
Scheduled time15:31
Provenance unavailable15:31
Departure
Scheduled time15:31
Provenance unavailable15:32
Breuillet Village
Arrival
Scheduled time15:34
Provenance unavailable15:34
Departure
Scheduled time15:35
Provenance unavailable15:35
Saint-Chéron
Arrival
Scheduled time15:38
Provenance unavailable15:37
Departure
Scheduled time15:39
Provenance unavailable15:38
Sermaise
Arrival
Scheduled time15:42
Provenance unavailable15:45
Departure
Scheduled time15:43
Provenance unavailable15:46
Dourdan
Arrival
Scheduled time15:48
Provenance unavailable15:52

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+0.1 min

max delay+4 min

runs reported3

cancelled runs1

stops18

Delay values

DateDelay (min)

2026-08-290.10526315789473684

2026-08-30-0.16666666666666666

2026-09-060.5

Typical schedule

Stops and times of RER 148821 from Musée d'Orsay to Dourdan la Forêt on a typical weekday. Actual times may vary.

StopArrivalDeparture

Musée d'Orsay—14:38

Saint-Michel Notre-Dame14:4114:41

Paris Austerlitz RER C14:4414:45

Bibliothèque François Mitterrand14:4814:50

Juvisy15:0115:02

Savigny-sur-Orge15:0515:06

Épinay-sur-Orge15:0815:09

Sainte-Geneviève-des-Bois15:1115:12

Saint-Michel-sur-Orge15:1415:15

Brétigny15:1815:19

La Norville - Saint-Germain-lès-Arpajon15:2215:23

Arpajon15:2515:26

Égly15:2815:28

Breuillet - Bruyères-le-Châtel15:3115:31

Breuillet Village15:3415:35

Saint-Chéron15:3815:39

Sermaise15:4215:43

Dourdan15:48—

Frequently asked questions

What time does RER 148821 depart?

RER 148821 departs from Musée d'Orsay at 14:38 (typical schedule from reported times). Actual times may vary.

How many stops does RER 148821 make?

RER 148821 connects Musée d'Orsay to Dourdan la Forêt with 18 stops.

Is RER 148821 on time?

Over the reported runs, every run of RER 148821 was cancelled (1 run): 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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