RER ERIO25

RER

Massy - PalaiseauAéroport Charles de Gaulle 2 (Terminal 2)

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

Historical average delay — home ranking

+1 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: 4. 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: 6
Events confirmed by the source: 0
Events predicted by the source: 1
Unknown event type: 3
Cancelled runs, excluded: 2
No usable delay, excluded: 0

Latest source timestamp: 9/10/2026, 1:30:21 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

Massy - Palaiseau
Departure
Scheduled time12:34
Predicted by the source12:35(+1′)
Massy - Verrières-le-Buisson
Arrival
Scheduled time12:36
Predicted by the source12:36(0′)
Departure
Scheduled time12:36
Predicted by the source12:37(+1′)
Les Baconnets
Arrival
Scheduled time12:38
Predicted by the source12:38(0′)
Departure
Scheduled time12:38
Predicted by the source12:39(+1′)
Fontaine Michalon
Arrival
Scheduled time12:39
Predicted by the source12:40(+1′)
Departure
Scheduled time12:39
Predicted by the source12:42(+3′)
Antony
Arrival
Scheduled time12:41
Predicted by the source12:43(+2′)
Departure
Scheduled time12:42
Predicted by the source12:44(+2′)
La Croix de Berny
Arrival
Scheduled time12:43
Predicted by the source12:44(+1′)
Departure
Scheduled time12:43
Predicted by the source12:45(+2′)
Parc de Sceaux
Arrival
Scheduled time12:45
Predicted by the source12:46(+1′)
Departure
Scheduled time12:45
Predicted by the source12:47(+2′)
Bourg-la-Reine
Arrival
Scheduled time12:46
Predicted by the source12:48(+2′)
Departure
Scheduled time12:47
Predicted by the source12:49(+2′)
Bagneux
Arrival
Scheduled time12:49
Predicted by the source12:51(+2′)
Departure
Scheduled time12:50
Predicted by the source12:52(+2′)
Arcueil - Cachan
Arrival
Scheduled time12:51
Predicted by the source12:53(+2′)
Departure
Scheduled time12:51
Predicted by the source12:54(+3′)
Laplace
Arrival
Scheduled time12:53
Predicted by the source12:55(+2′)
Departure
Scheduled time12:53
Predicted by the source12:56(+3′)
Gentilly
Arrival
Scheduled time12:55
Predicted by the source12:56(+1′)
Departure
Scheduled time12:55
Predicted by the source12:58(+3′)
Cité Universitaire
Arrival
Scheduled time12:56
Predicted by the source12:58(+2′)
Departure
Scheduled time12:57
Predicted by the source13:00(+3′)
Denfert Rochereau
Arrival
Scheduled time12:59
Predicted by the source13:01(+2′)
Departure
Scheduled time13:00
Predicted by the source13:02(+2′)
Port Royal
Arrival
Scheduled time13:01
Predicted by the source13:03(+2′)
Departure
Scheduled time13:02
Predicted by the source13:04(+2′)
Luxembourg
Arrival
Scheduled time13:03
Predicted by the source13:04(+1′)
Departure
Scheduled time13:03
Predicted by the source13:05(+2′)
Saint-Michel
Arrival
Scheduled time13:05
Predicted by the source13:06(+1′)
Departure
Scheduled time13:06
Predicted by the source13:07(+1′)
Châtelet les Halles
Arrival
Scheduled time13:07
Predicted by the source13:08(+1′)
Departure
Scheduled time13:08
Predicted by the source13:09(+1′)
Gare du Nord
Arrival
Scheduled time13:11
Predicted by the source13:12(+1′)
Departure
Scheduled time13:12
Predicted by the source13:14(+2′)
Aulnay-sous-Bois
Arrival
Scheduled time13:26
Predicted by the source13:26(0′)
Departure
Scheduled time13:27
Predicted by the source13:27(0′)
Parc des Expositions
Arrival
Scheduled time13:32
Predicted by the source13:32(0′)
Departure
Scheduled time13:33
Predicted by the source13:33(0′)
Aéroport Roissy Charles de Gaulle 1
Arrival
Scheduled time13:38
Predicted by the source13:38(0′)
Departure
Scheduled time13:39
Predicted by the source13:39(0′)
Aéroport - Charles-de-Gaulle 2 RER
Arrival
Scheduled time13:41
Predicted by the source13:41(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.

Cancelled runs are excluded from the punctuality calculation.

runs reported on time—

average delay+1.2 min

max delay+7 min

runs reported4

cancelled runs2

stops23

Delay values

DateDelay (min)

2026-09-052.409090909090909

2026-09-08-0.3181818181818182

2026-09-091.2222222222222223

2026-09-101.6521739130434783

Typical schedule

Stops and times of RER ERIO25 from Massy - Palaiseau to Aéroport Charles de Gaulle 2 (Terminal 2) on a typical weekday. Actual times may vary.

StopArrivalDeparture

Massy - Palaiseau—12:34

Massy - Verrières-le-Buisson12:3612:36

Les Baconnets12:3812:38

Fontaine Michalon12:3912:39

Antony12:4112:42

La Croix de Berny12:4312:43

Parc de Sceaux12:4512:45

Bourg-la-Reine12:4612:47

Bagneux12:4912:50

Arcueil - Cachan12:5112:51

Laplace12:5312:53

Gentilly12:5512:55

Cité Universitaire12:5612:57

Denfert Rochereau12:5913:00

Port Royal13:0113:02

Luxembourg13:0313:03

Saint-Michel13:0513:06

Châtelet les Halles13:0713:08

Gare du Nord13:1113:12

Aulnay-sous-Bois13:2613:27

Parc des Expositions13:3213:33

Aéroport Roissy Charles de Gaulle 113:3813:39

Aéroport - Charles-de-Gaulle 2 RER13:41—

Frequently asked questions

What time does RER ERIO25 depart?

RER ERIO25 departs from Massy - Palaiseau at 12:34 (typical schedule from reported times). Actual times may vary.

How many stops does RER ERIO25 make?

RER ERIO25 connects Massy - Palaiseau to Aéroport Charles de Gaulle 2 (Terminal 2) with 23 stops.

Is RER ERIO25 on time?

Over the reported runs, every run of RER ERIO25 was cancelled (2 runs): punctuality cannot be established.

Other trains on this line

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

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