RER UPUS27

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

Punctuality : 100% on time · average delay +1.3 min · over 7 observed days

Usually

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

Departs
13:54 · Marne-la-Vallée - Chessy
Arrives
15:23
Journey time
1 h 29
Stops
28
Runs
Weekends

Stops on the current run

23 stops passed : 10 confirmed by the source, 13 from the forecast. Latest source data: 1 min ago.

Estimated next stop: Achères Ville at 15:07

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 11 h 20 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(0′)
  3. Earlier stop (estimated)
    Bussy-Saint-Georges
    Arrival
    Scheduled time
    Predicted by the source(+2′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 1 h 06 old)
  4. Earlier stop (estimated)
    Torcy
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  5. Earlier stop (estimated)
    Lognes
    Arrival
    Scheduled time
    Confirmed by the source(+3′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+3′)
  6. Earlier stop (estimated)
    Noisiel
    Arrival
    Scheduled time
    Predicted by the source(+3′)
    Departure
    Scheduled time
    Predicted by the source(+3′)
    Passed according to the source forecast (data 56 min old)
  7. Earlier stop (estimated)
    Noisy - Champs
    Arrival
    Scheduled time
    Predicted by the source(+3′)
    Departure
    Scheduled time
    Predicted by the source(+3′)
    Passed according to the source forecast (data 54 min old)
  8. Earlier stop (estimated)
    Noisy-le-Grand - Mont d'Est
    Arrival
    Scheduled time
    Confirmed by the source(+3′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  9. Earlier stop (estimated)
    Bry-sur-Marne
    Arrival
    Scheduled time
    Predicted by the source(+3′)
    Departure
    Scheduled time
    Predicted by the source(+3′)
    Passed according to the source forecast (data 47 min old)
  10. Earlier stop (estimated)
    Neuilly-Plaisance
    Arrival
    Scheduled time
    Predicted by the source(+3′)
    Departure
    Scheduled time
    Predicted by the source(+3′)
    Passed according to the source forecast (data 45 min old)
  11. Earlier stop (estimated)
    Val de Fontenay
    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)
    Vincennes
    Arrival
    Scheduled time
    Confirmed by the source(+3′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+2′)
  13. Earlier stop (estimated)
    Nation
    Arrival
    Scheduled time
    Predicted by the source(+3′)
    Departure
    Scheduled time
    Predicted by the source(+2′)
    Passed according to the source forecast (data 38 min old)
  14. Earlier stop (estimated)
    Gare de Lyon
    Arrival
    Scheduled time
    Predicted by the source(+2′)
    Departure
    Scheduled time
    Predicted by the source(+2′)
    Passed according to the source forecast (data 34 min old)
  15. Earlier stop (estimated)
    Châtelet - Les Halles
    Arrival
    Scheduled time
    Predicted by the source(+2′)
    Departure
    Scheduled time
    Predicted by the source(+2′)
    Passed according to the source forecast (data 31 min old)
  16. Earlier stop (estimated)
    Auber
    Arrival
    Scheduled time
    Predicted by the source(+2′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 28 min old)
  17. Earlier stop (estimated)
    Charles de Gaulle - Étoile
    Arrival
    Scheduled time
    Confirmed by the source(+2′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  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(+1′)
  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(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  21. Earlier stop (estimated)
    Sartrouville
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 9 min old)
  22. Earlier stop (estimated)
    Maisons-Laffitte
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 9 min old)
  23. Next stop (estimated)
    Achères Ville
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 6 min old)
  24. Later stop (estimated)
    Conflans Fin d'Oise
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
  25. Later stop (estimated)
    Neuville - Université
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
  26. Later stop (estimated)
    Cergy Préfecture
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
  27. Later stop (estimated)
    Cergy Saint-Christophe
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
  28. Later stop (estimated)
    Cergy le Haut
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Estimated (timetable + current delay)(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 time100%
average delay+1.3 min
max delay+8 min
runs reported7
stops28
0m3m6m10/1018/1031/10
Delay values
DateDelay (min)
2026-10-100.6071428571428571
2026-10-110.4642857142857143
2026-10-170.3333333333333333
2026-10-18-0.07142857142857142
2026-10-245.777777777777778
2026-10-250.9285714285714286
2026-10-311.1851851851851851
Historical average delay — home ranking: +1.1 min (over 7 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: 7. 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, 4:05:00 PM – 11/1/2026, 3:05:00 PM (Europe/Paris).

Runs in the window
7
Events confirmed by the source
0
Events predicted by the source
7
Unknown event type
0
Cancelled runs, excluded
0
No usable delay, excluded
0

Latest source timestamp: 10/31/2026, 3:17:01 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 UPUS27 from Marne la Vallée - Chessy to Cergy le Haut on a typical weekday. Actual times may vary.

StopArrivalDeparture
Marne-la-Vallée - Chessy13:5413:54
Val d'Europe13:5613:57
Bussy-Saint-Georges14:0014:01
Torcy14:0414:05
Lognes14:0614:07
Noisiel14:0814:09
Noisy - Champs14:1114:12
Noisy-le-Grand - Mont d'Est14:1414:15
Bry-sur-Marne14:1714:17
Neuilly-Plaisance14:1914:19
Val de Fontenay14:2214:22
Vincennes14:2614:27
Nation14:2914:30
Gare de Lyon14:3214:33
Châtelet - Les Halles14:3614:36
Auber14:3814:39
Charles de Gaulle - Étoile14:4214:42
La Défense14:4614:47
Nanterre - Préfecture14:4914:51
Houilles - Carrières-sur-Seine14:5414:56
Sartrouville14:5814:59
Maisons-Laffitte15:0015:01
Achères Ville15:0715:07
Conflans Fin d'Oise15:0915:10
Neuville - Université15:1215:13
Cergy Préfecture15:1615:16
Cergy Saint-Christophe15:2015:20
Cergy le Haut15:2315:23

Frequently asked questions

What time does RER UPUS27 depart?

RER UPUS27 departs from Marne-la-Vallée - Chessy at 13:54 (typical schedule from reported times). Actual times may vary.

How many stops does RER UPUS27 make?

RER UPUS27 connects Marne la Vallée - Chessy to Cergy le Haut with 28 stops.

Is RER UPUS27 on time?

Over the reported runs, RER UPUS27 was reported on time 100% of runs, with an average delay of 1.3 minutes.

Other trains on this line

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

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