RER QYAN20

RER
Cergy le HautMarne la Vallée - Chessy
Passage confirmedPassage confirmed by the source at one or more stops. Other times are estimated.

Punctuality : 83% on time · average delay +1.2 min · over 7 observed days

Usually

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

Departs
13:24
Arrives
14:52 · Marne-la-Vallée - Chessy
Journey time
1 h 28
Stops
28
Runs
Weekends

Stops on the current run

20 stops passed : 11 confirmed by the source, 9 from the forecast. Latest source data: 1 min ago.

Estimated next stop: Noisy-le-Grand - Mont d'Est at 14:30

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

  1. Earlier stop (estimated)
    Cergy le Haut
    Arrival
    Scheduled time
    Departure
    Scheduled time
    Predicted by the source(0′)
    Passed according to the source forecast (data 10 h 41 old)
  2. Earlier stop (estimated)
    Cergy Saint-Christophe
    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)
    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(0′)
  4. Earlier stop (estimated)
    Neuville - Université
    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)
    Conflans Fin d'Oise
    Arrival
    Scheduled time
    Confirmed by the source(-1′)
    Arrival reported by the source, no actual time
    Departure
    Scheduled time
    Predicted by the source(0′)
  6. Earlier 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 51 min old)
  7. 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 45 min old)
  8. 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 45 min old)
  9. 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′)
  10. 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(-3′)
  11. 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(0′)
  12. Earlier stop (estimated)
    Charles de Gaulle - Étoile
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
    Passed according to the source forecast (data 29 min old)
  13. 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(-1′)
  14. Earlier stop (estimated)
    Châtelet - Les Halles
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
    Passed according to the source forecast (data 21 min old)
  15. Earlier stop (estimated)
    Gare de Lyon
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
    Passed according to the source forecast (data 19 min old)
  16. Earlier stop (estimated)
    Nation
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-2′)
    Passed according to the source forecast (data 15 min old)
  17. Earlier stop (estimated)
    Vincennes
    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)
    Val de Fontenay
    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)
    Neuilly-Plaisance
    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)
    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 min old)
  21. Next stop (estimated)
    Noisy-le-Grand - Mont d'Est
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
  22. Later stop (estimated)
    Noisy - Champs
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
  23. Later stop (estimated)
    Noisiel
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
  24. Later stop (estimated)
    Lognes
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
  25. Later stop (estimated)
    Torcy
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
  26. Later stop (estimated)
    Bussy-Saint-Georges
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
  27. Later stop (estimated)
    Val d'Europe
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Predicted by the source(-1′)
  28. Later stop (estimated)
    Marne-la-Vallée - Chessy
    Arrival
    Scheduled time
    Predicted by the source(-1′)
    Departure
    Scheduled time
    Estimated (timetable + current delay)(-1′)

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 time83%
average delay+1.2 min
max delay+11 min
runs reported7
stops28
0m3m7m10/1018/1031/10
Delay values
DateDelay (min)
2026-10-100.6071428571428571
2026-10-11-0.25
2026-10-170
2026-10-180
2026-10-24-0.14814814814814814
2026-10-257.142857142857143
2026-10-311.2592592592592593
Historical average delay — home ranking: +1.4 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, 3:26:04 PM – 11/1/2026, 2:26:04 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, 2:52:50 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 QYAN20 from Cergy le Haut to Marne la Vallée - Chessy on a typical weekday. Actual times may vary.

StopArrivalDeparture
Cergy le Haut13:2413:24
Cergy Saint-Christophe13:2613:26
Cergy Préfecture13:3013:30
Neuville - Université13:3313:34
Conflans Fin d'Oise13:3613:37
Achères Ville13:3913:39
Maisons-Laffitte13:4513:45
Sartrouville13:4713:47
Houilles - Carrières-sur-Seine13:5013:50
Nanterre - Préfecture13:5513:57
La Défense13:5813:59
Charles de Gaulle - Étoile14:0314:03
Auber14:0614:07
Châtelet - Les Halles14:0914:10
Gare de Lyon14:1214:13
Nation14:1514:16
Vincennes14:1814:19
Val de Fontenay14:2314:23
Neuilly-Plaisance14:2614:26
Bry-sur-Marne14:2814:28
Noisy-le-Grand - Mont d'Est14:3014:31
Noisy - Champs14:3314:34
Noisiel14:3614:37
Lognes14:3814:39
Torcy14:4014:41
Bussy-Saint-Georges14:4414:45
Val d'Europe14:4814:49
Marne-la-Vallée - Chessy14:5214:52

Frequently asked questions

What time does RER QYAN20 depart?

RER QYAN20 departs from Cergy le Haut at 13:24 (typical schedule from reported times). Actual times may vary.

How many stops does RER QYAN20 make?

RER QYAN20 connects Cergy le Haut to Marne la Vallée - Chessy with 28 stops.

Is RER QYAN20 on time?

Over the reported runs, RER QYAN20 was reported on time 83% of runs, with an average delay of 1.2 minutes.

Other trains on this line

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

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