RER UPAC91

RER
Marne la Vallée - ChessyCergy le Haut
Passage confirmedPassage confirmed by the source at one or more stops. Other times are estimated.

Punctuality : 88% on time · average delay +1.4 min · over 8 observed days

Usually

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

Departs
10:54 · Marne-la-Vallée - Chessy
Arrives
12:23
Journey time
1 h 29
Stops
28
Runs
Weekends

Stops on the latest run

28 stops passed : 15 confirmed by the source, 13 from the forecast. Latest source data: 1 h 26 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)
    Marne-la-Vallée - Chessy
    Arrival
    Scheduled time
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 10 h 32 old)
  2. Earlier stop (estimated)
    Val d'Europe
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  3. Earlier stop (estimated)
    Bussy-Saint-Georges
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 3 h 21 old)
  4. Earlier stop (estimated)
    Torcy
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  5. Earlier stop (estimated)
    Lognes
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 3 h 13 old)
  6. Earlier stop (estimated)
    Noisiel
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 3 h 10 old)
  7. Earlier stop (estimated)
    Noisy - Champs
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  8. Earlier stop (estimated)
    Noisy-le-Grand - Mont d'Est
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 3 h 05 old)
  9. Earlier stop (estimated)
    Bry-sur-Marne
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 3 h 03 old)
  10. Earlier stop (estimated)
    Neuilly-Plaisance
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 3 h 01 old)
  11. Earlier stop (estimated)
    Val de Fontenay
    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)
    Vincennes
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 2 h 55 old)
  13. Earlier stop (estimated)
    Nation
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  14. Earlier stop (estimated)
    Gare de Lyon
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  15. Earlier stop (estimated)
    Châtelet - Les Halles
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  16. Earlier stop (estimated)
    Auber
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  17. Earlier stop (estimated)
    Charles de Gaulle - Étoile
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  18. Earlier stop (estimated)
    La Défense
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  19. Earlier stop (estimated)
    Nanterre - Préfecture
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(-1′)
  20. Earlier stop (estimated)
    Houilles - Carrières-sur-Seine
    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)
    Sartrouville
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 2 h 22 old)
  22. Earlier stop (estimated)
    Maisons-Laffitte
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  23. Earlier stop (estimated)
    Achères 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′)
  24. Earlier stop (estimated)
    Conflans Fin d'Oise
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 2 h 11 old)
  25. Earlier stop (estimated)
    Neuville - Université
    Arrival
    Scheduled time
    Predicted by the source(+2′)
    Departure
    Scheduled time
    Predicted by the source(+2′)
    Passed according to the source forecast (data 2 h 08 old)
  26. Earlier stop (estimated)
    Cergy Préfecture
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  27. Earlier stop (estimated)
    Cergy Saint-Christophe
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 2 h old)
  28. Earlier stop (estimated)
    Cergy le Haut
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Passed according to the source forecast (data 1 h 48 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 time88%
average delay+1.4 min
max delay+10 min
runs reported8
stops28
0m4m8m10/1018/101/11
Delay values
DateDelay (min)
2026-10-100.6785714285714286
2026-10-118
2026-10-170.4074074074074074
2026-10-180.7142857142857143
2026-10-24-0.037037037037037035
2026-10-250.2857142857142857
2026-10-310
2026-11-011.5
Historical average delay — home ranking: +1 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, 2:28:58 PM – 11/1/2026, 1:28:58 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, 12:26:02 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 UPAC91 from Marne la Vallée - Chessy to Cergy le Haut on a typical weekday. Actual times may vary.

StopArrivalDeparture
Marne-la-Vallée - Chessy10:5410:54
Val d'Europe10:5610:57
Bussy-Saint-Georges11:0011:01
Torcy11:0411:05
Lognes11:0611:07
Noisiel11:0811:09
Noisy - Champs11:1111:12
Noisy-le-Grand - Mont d'Est11:1411:15
Bry-sur-Marne11:1711:17
Neuilly-Plaisance11:1911:19
Val de Fontenay11:2211:22
Vincennes11:2611:27
Nation11:2911:30
Gare de Lyon11:3211:33
Châtelet - Les Halles11:3611:36
Auber11:3811:39
Charles de Gaulle - Étoile11:4211:42
La Défense11:4611:47
Nanterre - Préfecture11:4911:51
Houilles - Carrières-sur-Seine11:5411:56
Sartrouville11:5811:59
Maisons-Laffitte12:0012:01
Achères Ville12:0712:07
Conflans Fin d'Oise12:0912:10
Neuville - Université12:1212:13
Cergy Préfecture12:1612:16
Cergy Saint-Christophe12:2012:20
Cergy le Haut12:2312:23

Frequently asked questions

What time does RER UPAC91 depart?

RER UPAC91 departs from Marne-la-Vallée - Chessy at 10:54 (typical schedule from reported times). Actual times may vary.

How many stops does RER UPAC91 make?

RER UPAC91 connects Marne la Vallée - Chessy to Cergy le Haut with 28 stops.

Is RER UPAC91 on time?

Over the reported runs, RER UPAC91 was reported on time 88% of runs, with an average delay of 1.4 minutes.

Other trains on this line

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

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