RER 148801

RER
Musée d'OrsayDourdan
Passage confirmedPassage confirmed by the source at one or more stops. Other times are estimated.

Punctuality : 100% on time · average delay +0.6 min · over 8 observed days

Usually

Usual times are calculated from past runs. See the selected run’s timetable below.

Departs
12:08
Arrives
13:18
Journey time
1 h 10
Stops
18
Runs
Weekends

Stops on the latest run

18 stops passed : 13 confirmed by the source, 5 from the forecast. Latest source data: 1 h 10 ago.

Run ended according to the timetable

Estimated progress: filled dots before the next stop, a ring at the next stop, empty dots afterwards. Passages not confirmed.

  1. Earlier stop (estimated)
    Musée d'Orsay
    Arrival
    Scheduled time
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 11 h 26 old)
  2. Earlier stop (estimated)
    Saint-Michel Notre-Dame
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  3. Earlier stop (estimated)
    Gare d'Austerlitz
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  4. Earlier stop (estimated)
    Bibliothèque François Mitterrand
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  5. Earlier stop (estimated)
    Juvisy
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  6. Earlier stop (estimated)
    Savigny-sur-Orge
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  7. Earlier stop (estimated)
    Épinay-sur-Orge
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  8. Earlier stop (estimated)
    Sainte-Geneviève-des-Bois
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  9. Earlier stop (estimated)
    Saint-Michel-sur-Orge
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 1 h 42 old)
  10. Earlier stop (estimated)
    Brétigny
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  11. Earlier stop (estimated)
    La Norville - Saint-Germain-lès-Arpajon
    Arrival
    Scheduled time
    Confirmed by the source(+3′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+3′)
  12. Earlier stop (estimated)
    Arpajon
    Arrival
    Scheduled time
    Predicted by the source(+3′)
    Departure
    Scheduled time
    Predicted by the source(+3′)
    Passed according to the source forecast (data 1 h 28 old)
  13. Earlier stop (estimated)
    Égly
    Arrival
    Scheduled time
    Predicted by the source(+3′)
    Departure
    Scheduled time
    Predicted by the source(+3′)
    Passed according to the source forecast (data 1 h 28 old)
  14. Earlier stop (estimated)
    Breuillet - Bruyères-le-Châtel
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  15. Earlier stop (estimated)
    Breuillet Village
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  16. Earlier stop (estimated)
    Saint-Chéron
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  17. Earlier stop (estimated)
    Sermaise
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  18. Earlier stop (estimated)
    Dourdan
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Passed according to the source forecast (data 1 h 10 old)

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+0.6 min
max delay+6 min
runs reported8
stops18
0m2m5m10/1018/101/11
Delay values
DateDelay (min)
2026-10-101
2026-10-11-0.07142857142857142
2026-10-170
2026-10-180.16666666666666666
2026-10-241.9473684210526316
2026-10-25-0.05555555555555555
2026-10-310.3684210526315789
2026-11-011.2777777777777777
Historical average delay — home ranking: −0.3 min (over 8 runs)

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: 8. Calculated on: (Europe/Paris).

This average can be available without a complete route. The route statistics below use only recorded routes with their stops.

Calculation window: 10/2/2026, 2:28:21 PM – 11/1/2026, 1:28:21 PM (Europe/Paris).

Runs in the window
8
Events confirmed by the source
0
Events predicted by the source
8
Unknown event type
0
Cancelled runs, excluded
0
No usable delay, excluded
0

Latest source timestamp: 11/1/2026, 1:15:44 PM (Europe/Paris).

Runs are identified within each source. Identities across sources are kept separate without a proven match. Exclusions can overlap.

Typical schedule

Stops and times of RER 148801 from Musée d'Orsay to Dourdan on a typical weekday. Actual times may vary.

StopArrivalDeparture
Musée d'Orsay12:0812:08
Saint-Michel Notre-Dame12:1112:11
Gare d'Austerlitz12:1412:15
Bibliothèque François Mitterrand12:1812:20
Juvisy12:3112:32
Savigny-sur-Orge12:3512:36
Épinay-sur-Orge12:3812:39
Sainte-Geneviève-des-Bois12:4112:42
Saint-Michel-sur-Orge12:4412:45
Brétigny12:4812:49
La Norville - Saint-Germain-lès-Arpajon12:5212:53
Arpajon12:5512:56
Égly12:5812:58
Breuillet - Bruyères-le-Châtel13:0113:01
Breuillet Village13:0413:05
Saint-Chéron13:0813:09
Sermaise13:1213:13
Dourdan13:1813:18

Frequently asked questions

What time does RER 148801 depart?

RER 148801 departs from Musée d'Orsay at 12:08 (typical schedule from reported times). Actual times may vary.

How many stops does RER 148801 make?

RER 148801 connects Musée d'Orsay to Dourdan with 18 stops.

Is RER 148801 on time?

Over the reported runs, RER 148801 was reported on time 100% of runs, with an average delay of 0.6 minutes.

Other trains on this line

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

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