RER QNOR42

RER

Saint-Germain-en-LayeMarne-la-Vallée - Chessy

Passages not confirmedTimes reported by the data source. Passages are not confirmed.

Historical average delay — home ranking

+2.8 min

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: 5. Calculated on: 9/11/2026, 1:00:25 AM (Europe/Paris).

This average can be available without a complete route. The route statistics below use only recorded routes with their stops.

Calculation window: 8/12/2026, 1:00:25 AM – 9/11/2026, 1:00:25 AM (Europe/Paris).

Runs in the window: 7
Events confirmed by the source: 0
Events predicted by the source: 2
Unknown event type: 3
Cancelled runs, excluded: 1
No usable delay, excluded: 1

Latest source timestamp: 9/10/2026, 6:32:12 PM (Europe/Paris).

Runs are identified within each source. Identities across sources are kept separate without a proven match. Exclusions can overlap.

Latest available run: these times are historical.

Stops on the latest run

Saint-Germain-en-Laye
Departure
Scheduled time17:12
Predicted by the source17:15(+3′)
Le Vésinet - Le Pecq
Arrival
Scheduled time17:14
Predicted by the source17:17(+3′)
Departure
Scheduled time17:15
Predicted by the source17:18(+3′)
Le Vésinet
Arrival
Scheduled time17:16
Predicted by the source17:19(+3′)
Departure
Scheduled time17:17
Predicted by the source17:20(+3′)
Chatou - Croissy-sur-Seine
Arrival
Scheduled time17:19
Predicted by the source17:21(+2′)
Departure
Scheduled time17:19
Predicted by the source17:22(+3′)
Rueil-Malmaison - RER
Arrival
Scheduled time17:21
Predicted by the source17:23(+2′)
Departure
Scheduled time17:21
Predicted by the source17:24(+3′)
Nanterre RER
Arrival
Scheduled time17:23
Predicted by the source17:26(+3′)
Departure
Scheduled time17:24
Predicted by the source17:27(+3′)
Nanterre Université - RER
Arrival
Scheduled time17:26
Predicted by the source17:28(+2′)
Departure
Scheduled time17:26
Predicted by the source17:29(+3′)
Nanterre Préfecture - RER
Arrival
Scheduled time17:28
Predicted by the source17:30(+2′)
Departure
Scheduled time17:29
Predicted by the source17:31(+2′)
La Grande Arche de la Défense
Arrival
Scheduled time17:30
Predicted by the source17:34(+4′)
Departure
Scheduled time17:31
Predicted by the source17:39(+8′)
Charles-de-Gaulle Étoile
Arrival
Scheduled time17:35
Predicted by the source17:42(+7′)
Departure
Scheduled time17:35
Predicted by the source17:43(+8′)
Auber
Arrival
Scheduled time17:38
Predicted by the source17:45(+7′)
Departure
Scheduled time17:39
Predicted by the source17:47(+8′)
Châtelet les Halles
Arrival
Scheduled time17:41
Predicted by the source17:48(+7′)
Departure
Scheduled time17:42
Predicted by the source17:50(+8′)
Paris Gare de Lyon
Arrival
Scheduled time17:45
Predicted by the source17:52(+7′)
Departure
Scheduled time17:45
Predicted by the source17:53(+8′)
Nation
Arrival
Scheduled time17:47
Predicted by the source17:55(+8′)
Departure
Scheduled time17:48
Predicted by the source17:56(+8′)
Vincennes
Arrival
Scheduled time17:51
Predicted by the source17:58(+7′)
Departure
Scheduled time17:51
Predicted by the source17:59(+8′)
Val de Fontenay
Arrival
Scheduled time17:55
Predicted by the source18:02(+7′)
Departure
Scheduled time17:56
Predicted by the source18:04(+8′)
Neuilly-Plaisance
Arrival
Scheduled time17:58
Predicted by the source18:05(+7′)
Departure
Scheduled time17:59
Predicted by the source18:07(+8′)
Noisy-le-Grand - Mont d'Est
Arrival
Scheduled time18:02
Predicted by the source18:09(+7′)
Departure
Scheduled time18:03
Predicted by the source18:10(+7′)
Noisy-le-Grand Champs
Arrival
Scheduled time18:05
Predicted by the source18:11(+6′)
Departure
Scheduled time18:05
Predicted by the source18:13(+8′)
Lognes
Arrival
Scheduled time18:09
Predicted by the source18:16(+7′)
Departure
Scheduled time18:09
Predicted by the source18:17(+8′)
Torcy
Arrival
Scheduled time18:11
Predicted by the source18:18(+7′)
Departure
Scheduled time18:12
Predicted by the source18:20(+8′)
Bussy-Saint-Georges
Arrival
Scheduled time18:15
Predicted by the source18:25(+10′)
Departure
Scheduled time18:16
Predicted by the source18:26(+10′)
Val d'Europe
Arrival
Scheduled time18:19
Predicted by the source18:29(+10′)
Departure
Scheduled time18:20
Predicted by the source18:30(+10′)
Marne la Vallée - Chessy
Arrival
Scheduled time18:23
Predicted by the source18:31(+8′)

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.

Cancelled runs are excluded from the punctuality calculation.

runs reported on time50%

average delay+1.3 min

max delay+10 min

runs reported6

cancelled runs1

stops24

Delay values

DateDelay (min)

2026-09-030.5

2026-09-040.08333333333333333

2026-09-070.4583333333333333

2026-09-08-0.125

2026-09-090.625

2026-09-106.416666666666667

Typical schedule

Stops and times of RER QNOR42 from Saint-Germain-en-Laye to Marne-la-Vallée - Chessy on a typical weekday. Actual times may vary.

StopArrivalDeparture

Saint-Germain-en-Laye—17:12

Le Vésinet - Le Pecq17:1417:15

Le Vésinet17:1617:17

Chatou - Croissy-sur-Seine17:1917:19

Rueil-Malmaison - RER17:2117:21

Nanterre RER17:2317:24

Nanterre Université - RER17:2617:26

Nanterre Préfecture - RER17:2817:29

La Grande Arche de la Défense17:3017:31

Charles-de-Gaulle Étoile17:3517:35

Auber17:3817:39

Châtelet les Halles17:4117:42

Paris Gare de Lyon17:4517:45

Nation17:4717:48

Vincennes17:5117:51

Val de Fontenay17:5517:56

Neuilly-Plaisance17:5817:59

Noisy-le-Grand - Mont d'Est18:0218:03

Noisy-le-Grand Champs18:0518:05

Lognes18:0918:09

Torcy18:1118:12

Bussy-Saint-Georges18:1518:16

Val d'Europe18:1918:20

Marne la Vallée - Chessy18:23—

Frequently asked questions

What time does RER QNOR42 depart?

RER QNOR42 departs from Saint-Germain-en-Laye at 17:12 (typical schedule from reported times). Actual times may vary.

How many stops does RER QNOR42 make?

RER QNOR42 connects Saint-Germain-en-Laye to Marne-la-Vallée - Chessy with 24 stops.

Is RER QNOR42 on time?

Over the reported runs, RER QNOR42 was reported on time 50% of runs, with an average delay of 1.3 minutes. 1 cancelled run is excluded from the calculation.

Other trains on this line

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

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