RER AISY41

RER
Saint-Rémy-lès-ChevreuseGare du Nord
Passage confirmedPassage confirmed by the source at one or more stops. Other times are estimated.

Punctuality : 50% on time · average delay +7.1 min · over 2 observed days

Usually

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

Departs
11:57
Arrives
12:47
Journey time
50 min
Stops
21

Stops on the latest run

21 stops passed : 12 confirmed by the source, 9 from the forecast. Latest source data: 2 min 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)
    Saint-Rémy-lès-Chevreuse
    Arrival
    Scheduled time
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 8 h 08 old)
  2. Earlier stop (estimated)
    Courcelle-sur-Yvette
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 8 h 08 old)
  3. Earlier stop (estimated)
    Gif-Sur-Yvette
    Arrival
    Scheduled time
    Predicted by the source(+2′)
    Departure
    Scheduled time
    Predicted by the source(+2′)
    Passed according to the source forecast (data 53 min old)
  4. Earlier stop (estimated)
    La Hacquinière
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 51 min old)
  5. Earlier stop (estimated)
    Bures-sur-Yvette
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 48 min old)
  6. Earlier stop (estimated)
    Orsay - Ville
    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)
    Le Guichet
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  8. Earlier stop (estimated)
    Lozère
    Arrival
    Scheduled time
    Predicted by the source(+2′)
    Departure
    Scheduled time
    Predicted by the source(+2′)
    Passed according to the source forecast (data 43 min old)
  9. Earlier stop (estimated)
    Palaiseau - Villebon
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  10. Earlier stop (estimated)
    Palaiseau
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  11. Earlier stop (estimated)
    Massy - Palaiseau
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  12. Earlier stop (estimated)
    Antony
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 31 min old)
  13. Earlier stop (estimated)
    La Croix de Berny
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  14. Earlier stop (estimated)
    Bourg-la-Reine
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 28 min old)
  15. Earlier stop (estimated)
    Cité Universitaire
    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)
    Denfert-Rochereau
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  17. Earlier stop (estimated)
    Port Royal
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  18. Earlier stop (estimated)
    Luxembourg
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  19. Earlier stop (estimated)
    Saint-Michel Notre-Dame
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  20. Earlier stop (estimated)
    Châtelet - Les Halles
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  21. Earlier stop (estimated)
    Gare du Nord
    Arrival
    Scheduled time
    Predicted by the source(+2′)
    Departure
    Scheduled time
    Passed according to the source forecast (data 6 min 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 time50%
average delay+7.1 min
max delay+27 min
runs reported2
stops21
0m6m12m31/101/11
Delay values
DateDelay (min)
2026-10-3112.23076923076923
2026-11-011.9047619047619047
Historical average delay — home ranking: +14.5 min (over 2 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: 2. 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, 1:53:22 PM – 11/1/2026, 12:53:22 PM (Europe/Paris).

Runs in the window
2
Events confirmed by the source
0
Events predicted by the source
2
Unknown event type
0
Cancelled runs, excluded
0
No usable delay, excluded
0

Latest source timestamp: 11/1/2026, 12:48:32 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 AISY41 from Saint-Rémy-lès-Chevreuse to Gare du Nord on a typical weekday. Actual times may vary.

StopArrivalDeparture
Saint-Rémy-lès-Chevreuse11:5711:57
Courcelle-sur-Yvette11:5911:59
Gif-Sur-Yvette12:0212:02
La Hacquinière12:0412:04
Bures-sur-Yvette12:0512:06
Orsay - Ville12:0712:08
Le Guichet12:0912:10
Lozère12:1112:12
Palaiseau - Villebon12:1412:14
Palaiseau12:1612:16
Massy - Palaiseau12:1812:19
Antony12:2312:23
La Croix de Berny12:2512:25
Bourg-la-Reine12:2712:28
Cité Universitaire12:3312:33
Denfert-Rochereau12:3512:36
Port Royal12:3712:38
Luxembourg12:3912:39
Saint-Michel Notre-Dame12:4112:42
Châtelet - Les Halles12:4312:44
Gare du Nord12:4712:47

Frequently asked questions

What time does RER AISY41 depart?

RER AISY41 departs from Saint-Rémy-lès-Chevreuse at 11:57 (typical schedule from reported times). Actual times may vary.

How many stops does RER AISY41 make?

RER AISY41 connects Saint-Rémy-lès-Chevreuse to Gare du Nord with 21 stops.

Is RER AISY41 on time?

Over the reported runs, RER AISY41 was reported on time 50% of runs, with an average delay of 7.1 minutes.

Other trains on this line

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

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