RER ERIO55
RERNext scheduled journey — timetable: 2026-11-02
Punctuality : 87% on time · average delay +0.5 min · over 15 observed days
Usually
- Departs
- 13:49 · Massy - Palaiseau
- Arrives
- 14:56 · Aéroport CDG (Terminal 2) - TGV
- Journey time
- 1 h 07
- Stops
- 22
- Runs
- Every day
Next scheduled journey — timetable
- Massy - PalaiseauScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Massy - VerrièresScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Les BaconnetsScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Fontaine MichalonScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- AntonyScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- La Croix de BernyScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Parc de SceauxScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Bourg-la-ReineScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- BagneuxScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Arcueil - CachanScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- LaplaceScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- GentillyScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Cité UniversitaireScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Denfert-RochereauScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Port RoyalScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- LuxembourgScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Saint-Michel Notre-DameScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Châtelet - Les HallesScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Gare du NordScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Aulnay-sous-BoisScheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Aéroport CDG 1 (Terminal 3)Scheduled, not trackedArrivalScheduled timeDepartureScheduled time
- Aéroport CDG (Terminal 2) - TGVScheduled, not trackedArrivalScheduled timeDepartureScheduled time
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.
Delay values
Historical average delay — home ranking: +1.1 min (over 17 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: 17. 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, 4:05:00 PM – 11/1/2026, 3:05:00 PM (Europe/Paris).
- Runs in the window
- 18
- Events confirmed by the source
- 0
- Events predicted by the source
- 17
- Unknown event type
- 0
- Cancelled runs, excluded
- 1
- No usable delay, excluded
- 0
Latest source timestamp: 10/30/2026, 4:10:33 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 ERIO55 from Châtelet les Halles to Aéroport - Charles-de-Gaulle 2 RER on a typical weekday. Actual times may vary.
Frequently asked questions
What time does RER ERIO55 depart?
RER ERIO55 departs from Massy - Palaiseau at 13:49 (typical schedule from reported times). Actual times may vary.
How many stops does RER ERIO55 make?
RER ERIO55 connects Châtelet les Halles to Aéroport - Charles-de-Gaulle 2 RER with 22 stops.
Is RER ERIO55 on time?
Over the reported runs, RER ERIO55 was reported on time 87% of runs, with an average delay of 0.5 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.