RER UBOS27

RER
TorcyCergy le Haut
Passage confirmedPassage confirmed by the source at one or more stops. Other times are estimated.

Punctuality : 89% on time · average delay +0.9 min · over 10 observed days

Usually

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

Departs
05:36
Arrives
06:53
Journey time
1 h 17
Stops
25
Runs
Weekends

Stops on the latest run

25 stops passed : 12 confirmed by the source, 13 from the forecast. Latest source data: 9 h 04 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)
    Torcy
    Arrival
    Scheduled time
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 12 h 39 old)
  2. Earlier stop (estimated)
    Lognes
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 12 h 39 old)
  3. Earlier stop (estimated)
    Noisiel
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 10 h 48 old)
  4. Earlier stop (estimated)
    Noisy - Champs
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  5. Earlier stop (estimated)
    Noisy-le-Grand - Mont d'Est
    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)
    Bry-sur-Marne
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 10 h 41 old)
  7. Earlier stop (estimated)
    Neuilly-Plaisance
    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)
    Val de Fontenay
    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)
    Vincennes
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 10 h 33 old)
  10. Earlier stop (estimated)
    Nation
    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)
    Gare de Lyon
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
    Passed according to the source forecast (data 10 h 25 old)
  12. Earlier stop (estimated)
    Châtelet - Les Halles
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
    Passed according to the source forecast (data 10 h 25 old)
  13. Earlier stop (estimated)
    Auber
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
    Passed according to the source forecast (data 10 h 25 old)
  14. Earlier stop (estimated)
    Charles de Gaulle - Étoile
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
    Passed according to the source forecast (data 10 h 17 old)
  15. Earlier stop (estimated)
    La Défense
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(-1′)
  16. Earlier stop (estimated)
    Nanterre - Préfecture
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(-2′)
  17. Earlier stop (estimated)
    Houilles - Carrières-sur-Seine
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  18. Earlier stop (estimated)
    Sartrouville
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  19. 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 h 59 old)
  20. Earlier stop (estimated)
    Achères Ville
    Arrival
    Scheduled time
    Confirmed by the source(0′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  21. Earlier stop (estimated)
    Conflans Fin d'Oise
    Arrival
    Scheduled time
    Predicted by the source(0′)
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 9 h 50 old)
  22. Earlier stop (estimated)
    Neuville - Université
    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)
    Cergy Préfecture
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Predicted by the source(+1′)
    Passed according to the source forecast (data 9 h 42 old)
  24. Earlier stop (estimated)
    Cergy Saint-Christophe
    Arrival
    Scheduled time
    Confirmed by the source(+1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(+1′)
  25. Earlier stop (estimated)
    Cergy le Haut
    Arrival
    Scheduled time
    Predicted by the source(+1′)
    Departure
    Scheduled time
    Passed according to the source forecast (data 9 h 27 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 time89%
average delay+0.9 min
max delay+12 min
runs reported10
stops25
0m2m5m3/1017/101/11
Delay values
DateDelay (min)
2026-10-03-0.29411764705882354
2026-10-040.32
2026-10-100.36
2026-10-111.8
2026-10-171.12
2026-10-182.28
2026-10-240.76
2026-10-251.4
2026-10-310.3333333333333333
2026-11-010.64
Historical average delay — home ranking: +2.2 min (over 9 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: 9. 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, 8:28:59 AM – 11/1/2026, 7:28:59 AM (Europe/Paris).

Runs in the window
10
Events confirmed by the source
0
Events predicted by the source
9
Unknown event type
0
Cancelled runs, excluded
0
No usable delay, excluded
0

Latest source timestamp: 11/1/2026, 6:50:36 AM (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 UBOS27 from Torcy to Cergy le Haut on a typical weekday. Actual times may vary.

StopArrivalDeparture
Torcy05:3605:36
Lognes05:3805:38
Noisiel05:4005:40
Noisy - Champs05:4305:43
Noisy-le-Grand - Mont d'Est05:4605:46
Bry-sur-Marne05:4805:49
Neuilly-Plaisance05:5005:51
Val de Fontenay05:5305:54
Vincennes05:5805:58
Nation06:0106:01
Gare de Lyon06:0406:04
Châtelet - Les Halles06:0706:08
Auber06:0906:10
Charles de Gaulle - Étoile06:1306:13
La Défense06:1706:18
Nanterre - Préfecture06:2006:22
Houilles - Carrières-sur-Seine06:2506:26
Sartrouville06:2906:29
Maisons-Laffitte06:3106:31
Achères Ville06:3706:37
Conflans Fin d'Oise06:4006:40
Neuville - Université06:4306:43
Cergy Préfecture06:4606:46
Cergy Saint-Christophe06:5006:50
Cergy le Haut06:5306:53

Frequently asked questions

What time does RER UBOS27 depart?

RER UBOS27 departs from Torcy at 05:36 (typical schedule from reported times). Actual times may vary.

How many stops does RER UBOS27 make?

RER UBOS27 connects Torcy to Cergy le Haut with 25 stops.

Is RER UBOS27 on time?

Over the reported runs, RER UBOS27 was reported on time 89% of runs, with an average delay of 0.9 minutes.

Other trains on this line

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

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