RER ERIO55

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: 3. 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: 2
Cancelled runs, excluded: 3
No usable delay, excluded: 0

Latest source timestamp: 9/10/2026, 3:01:55 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 time13:50
Predicted by the source13:50(0′)
Massy - Verrières-le-Buisson
Arrival
Scheduled time13:51
Predicted by the source13:51(0′)
Departure
Scheduled time13:52
Predicted by the source13:52(0′)
Les Baconnets
Arrival
Scheduled time13:53
Predicted by the source13:53(0′)
Departure
Scheduled time13:54
Predicted by the source13:54(0′)
Fontaine Michalon
Arrival
Scheduled time13:54
Predicted by the source13:54(0′)
Departure
Scheduled time13:56
Predicted by the source13:56(0′)
Antony
Arrival
Scheduled time13:57
Predicted by the source13:57(0′)
Departure
Scheduled time13:58
Predicted by the source13:58(0′)
La Croix de Berny
Arrival
Scheduled time13:58
Predicted by the source13:58(0′)
Departure
Scheduled time13:59
Predicted by the source13:59(0′)
Parc de Sceaux
Arrival
Scheduled time14:00
Predicted by the source14:00(0′)
Departure
Scheduled time14:01
Predicted by the source14:01(0′)
Bourg-la-Reine
Arrival
Scheduled time14:02
Predicted by the source14:02(0′)
Departure
Scheduled time14:03
Predicted by the source14:03(0′)
Bagneux
Arrival
Scheduled time14:05
Predicted by the source14:05(0′)
Departure
Scheduled time14:06
Predicted by the source14:06(0′)
Arcueil - Cachan
Arrival
Scheduled time14:06
Predicted by the source14:06(0′)
Departure
Scheduled time14:08
Predicted by the source14:08(0′)
Laplace
Arrival
Scheduled time14:08
Predicted by the source14:08(0′)
Departure
Scheduled time14:10
Predicted by the source14:10(0′)
Gentilly
Arrival
Scheduled time14:10
Predicted by the source14:10(0′)
Departure
Scheduled time14:12
Predicted by the source14:12(0′)
Cité Universitaire
Arrival
Scheduled time14:12
Predicted by the source14:12(0′)
Departure
Scheduled time14:13
Predicted by the source14:13(0′)
Denfert Rochereau
Arrival
Scheduled time14:15
Predicted by the source14:15(0′)
Departure
Scheduled time14:16
Predicted by the source14:16(0′)
Port Royal
Arrival
Scheduled time14:17
Predicted by the source14:17(0′)
Departure
Scheduled time14:18
Predicted by the source14:18(0′)
Luxembourg
Arrival
Scheduled time14:18
Predicted by the source14:18(0′)
Departure
Scheduled time14:19
Predicted by the source14:19(0′)
Saint-Michel
Arrival
Scheduled time14:21
Predicted by the source14:21(0′)
Departure
Scheduled time14:22
Predicted by the source14:22(0′)
Châtelet les Halles
Arrival
Scheduled time14:22
Predicted by the source14:22(0′)
Departure
Scheduled time14:24
Predicted by the source14:24(0′)
Gare du Nord
Arrival
Scheduled time14:26
Predicted by the source14:26(0′)
Departure
Scheduled time14:28
Predicted by the source14:28(0′)
Aulnay-sous-Bois
Arrival
Scheduled time14:42
Predicted by the source14:42(0′)
Departure
Scheduled time14:43
Predicted by the source14:43(0′)
Parc des Expositions
Arrival
Scheduled time14:48
Predicted by the source14:48(0′)
Departure
Scheduled time14:49
Predicted by the source14:49(0′)
Aéroport Roissy Charles de Gaulle 1
Arrival
Scheduled time14:54
Predicted by the source14:54(0′)
Departure
Scheduled time14:54
Predicted by the source14:54(0′)
Aéroport - Charles-de-Gaulle 2 RER
Arrival
Scheduled time14:55
Predicted by the source14:55(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+-0.4 min

max delay+0 min

runs reported3

cancelled runs3

stops23

Delay values

DateDelay (min)

2026-09-08-1.0909090909090908

2026-09-090

2026-09-100

Typical schedule

Stops and times of RER ERIO55 from Massy - Palaiseau to Aéroport Charles de Gaulle 2 (Terminal 2) on a typical weekday. Actual times may vary.

StopArrivalDeparture

Massy - Palaiseau—13:50

Massy - Verrières-le-Buisson13:5113:52

Les Baconnets13:5313:54

Fontaine Michalon13:5413:56

Antony13:5713:58

La Croix de Berny13:5813:59

Parc de Sceaux14:0014:01

Bourg-la-Reine14:0214:03

Bagneux14:0514:06

Arcueil - Cachan14:0614:08

Laplace14:0814:10

Gentilly14:1014:12

Cité Universitaire14:1214:13

Denfert Rochereau14:1514:16

Port Royal14:1714:18

Luxembourg14:1814:19

Saint-Michel14:2114:22

Châtelet les Halles14:2214:24

Gare du Nord14:2614:28

Aulnay-sous-Bois14:4214:43

Parc des Expositions14:4814:49

Aéroport Roissy Charles de Gaulle 114:5414:54

Aéroport - Charles-de-Gaulle 2 RER14:55—

Frequently asked questions

What time does RER ERIO55 depart?

RER ERIO55 departs from Massy - Palaiseau at 13:50 (typical schedule from reported times). Actual times may vary.

How many stops does RER ERIO55 make?

RER ERIO55 connects Massy - Palaiseau to Aéroport Charles de Gaulle 2 (Terminal 2) with 23 stops.

Is RER ERIO55 on time?

Over the reported runs, every run of RER ERIO55 was cancelled (3 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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