RER E: service disrupted or interrupted, real-time updates on the line

Named Éole for the East–West Liaison Express, the RER E has been in service since 1999 and today stands as the shortest line in the Île-de-France regional express network, stretching 52km. It features 23 stops and crosses several Île-de-France departments besides Paris: the Val-de-Marne, the Seine-Saint-Denis, and the Seine-et-Marne.

Starting from the Gare Saint-Lazare, the RER E has two other Paris stops, Magenta (where the Gare du Nord is located) and Rosa-Parks in the 19th arrondissement of the capital. It then heads into the suburbs, serving notably the regional shopping center Rosny 2 , located in Rosny-Sous-Bois in Seine-Saint-Denis. In terms of connections, the RER E connects to several metro lines. From the RER E, on the Parisian segment, one can reach lines 2, 3, 4, 5, 7, 9, 12, 13 and 14 of the metro, as well as the RER A, B and D.

So what's the traffic situation on the RER E of Île-de-France's public transport right now? To help you plan your trips, we’re sharing here in real time information about ongoing or upcoming disruptions on this rail line.

• To be read
• This week’s best deals in Paris and Île-de-France, July 13–19, 2026

• RER E: Nanterre - Villiers / Tournan, from 11 July to 9 August:
  Period : weekdays and weekends
  Dates : from Saturday, July 11 to Sunday, August 9
  The rail timetable between Nanterre-la-Folie and Villiers-sur-Marne is being eased as works take place on this section.
  One train in two serves the Nanterre-la-Folie–Villiers-sur-Marne route all day;
  One train in two serves the Nanterre-la-Folie–Tournan route from 16:00 to 20:00.
  Rosny-Bois-Perrier station is not served from August 1 to 7. Buses replace trains between these stations.
  Reason : works on the rail network (construction of the new platforms on Line 15 as part of the Grand Paris Express).
• RER E: Nanterre–Villiers / Tournan 11/07 – 2/08:
  Period : the weekend starting at 9:40 p.m.
  Dates : from Saturday, July 11 to Sunday, August 2
  Traffic is suspended between Nanterre-la-Folie and Villiers-sur-Marne and between Nanterre-la-Folie and Tournan.
  From July 11 to August 2 (except July 18 and 19):
  The last NATU train from Tournan to Nanterre-la-Folie is at 9:23 p.m.
  The last NOVY train from Villiers-sur-Marne to Nanterre-la-Folie is at 9:34 p.m.
  The last TONU train from Nanterre-la-Folie to Tournan is at 9:34 p.m.
  The last VONY train from Nanterre-la-Folie to Villiers-sur-Marne is at 9:11 p.m.
  July 18 and 19 :
  The last NATU train from Tournan to Paris Est is at 9:23 p.m.
  The last NOVY train from Villiers-sur-Marne to Nanterre-la-Folie is at 9:34 p.m.
  The last TONU train from Paris Est to Tournan is at 9:47 p.m.
  The last VONY train from Paris Est to Villiers-sur-Marne is at 9:24 p.m.
  A replacement bus service is being provided, serving intermediate stations.
  Reason : railway works (track maintenance).
• RER E: adjusted transport service from July 11 to August 23:
  RER E: During the school holidays from Saturday, July 11 to Sunday, August 23, service on your RER E will be adjusted. Some trains will not run.
  To plan your journey before heading to the station, check the timetable on the Ile-de-France Mobilités app, the Transilien.com site, SNCF Connect, or your mobility app.
• RER E: Nanterre–Chelles, June 15–October 2 and October 15–December 11:
  Period: on weekdays starting at 22:45
  Dates: from Monday, June 15 to Friday, October 2 and from Thursday, October 15 to Friday, December 11.
  Traffic is suspended between Nanterre-la-Folie and Chelles Gournay.
  The last NOCY train from Chelles Gournay to Nanterre-la-Folie is at 22:33.
  The last CONY train from Nanterre-la-Folie to Chelles Gournay is at 22:49, except from June 15 to 16, when the last CONY train from Nanterre-la-Folie to Chelles Gournay is at 22:38.
  A replacement bus service is in place, with stops at the intermediate stations.
  Reason: railway works
• RER E : Nanterre - Villiers / Tournan from July 13 to August 7:
  Period: weekends from 10:10 p.m.
  Dates: from Monday, July 13 to Friday, August 7
  Traffic is suspended between Nanterre-la-Folie and Villiers-sur-Marne, and between Nanterre-la-Folie and Tournan.
  The last NATU train from Tournan to Nanterre-la-Folie departs at 9:53 p.m.
  The last NOVY train from Villiers-sur-Marne to Nanterre-la-Folie departs at 10:04 p.m.
  The last TONU service from Nanterre-la-Folie to Tournan leaves at 9:56 p.m.
  The last VONY train from Nanterre-la-Folie to Villiers-sur-Marne leaves at 9:11 p.m.
  A replacement bus service is being arranged, with stops at intermediate stations.
  Reason: railway works (multiple track maintenance works between Paris and Nogent - Le Perreux).
• RER E: Nanterre to Chelles July 18 – September 6:
  Période : from 10:45 PM
  Dates : Saturdays July 18, 25, August 8, 15, 22, 29, September 5 and Sundays July 19, 26, August 30, September 6
  Traffic is interrupted between Nanterre-la-Folie and Chelles Gournay.
  The last NOCY train from Chelles Gournay to Nanterre-la-Folie leaves at 10:33 PM.
  The last CONY train from Nanterre-la-Folie to Chelles Gournay leaves at 10:49 PM.
  Except on July 18 and 19:
  The last NOCY train from Chelles Gournay to Paris Est departs at 10:33 PM.
  The last CONY train from Paris Est to Chelles Gournay departs at 11:03 PM.
  A replacement bus service is in operation, serving the intermediate stations.
  Motif : works on the rail network (Grand Paris Express).
• RER E: Nanterre - Villiers/Tournan/Chelles on July 18 and 19:
  Period : all weekend long
  Date : Saturday, July 18 and Sunday, July 19
  Between Nanterre-La-Folie and Rosa Parks no trains operate. Departures and arrivals will be handled at Paris Est;
  Pantin and Rosa Parks stations will not be served by trains from Tournan;
  Trains will therefore run with no stops from Noisy-le-Sec to Paris Est;
  Reason : railway works (maintenance in the tunnel).
• RER E - Major Summer Works 2026: from July 20 to July 24:
  Period: all day
  Dates: July 20 to July 24
  - Nanterre-la-Folie <> Tournan: reduced service from 5:20 to 8:45 toward Paris and from 16:00 to 19:30 toward Tournan (one train every 30 minutes)
  - Nanterre-la-Folie <> Villiers-sur-Marne: reduced service from 5:00 to 9:30 and from 16:00 to 22:30 (one train every 30 minutes)
  Note:
  - Rosny-Bois-Perrier not served in either direction from August 1 to August 7: replacement bus
  For more information on these works, see the RER E blog.
  Reason: Works on the rail network (construction of the new platforms on line 15 as part of the Grand Paris Express).
• RER E: the entire line on July 26:
  Period: all day
  Dates: Sunday, July 26
  Service is altered between Nanterre-la-Folie and Chelles Gournay / Tournan / Villiers-sur-Marne.
  No trains run in either direction between Nanterre-la-Folie and Haussmann Saint-Lazare on the Chelles-Gournay and Tournan lines, and between Nanterre-la-Folie and Magenta on the Villiers-sur-Marne line.
  Reason: track works (testing the new train operating system between Haussmann Saint-Lazare and Nanterre-la-Folie).
• RER E: Nanterre - Villiers 1–7 August:
  Period: weekend and weekdays
  Date: Saturday, August 1 to Friday, August 7
  Trains will not stop at Rosny-Bois-Perrier station. A bus service will replace trains between Rosny-Bois-Perrier and Rosny-sous-Bois.
  Reason: rail works (construction on the new platforms for Line 15 as part of the Grand Paris Express).
• RER E: Nanterre – Villiers/Tournan, Aug 8–29:
  Period : Saturdays from 10:30 p.m.
  Dates : Saturdays August 8, 15, 22 and 29
  Traffic is interrupted between Nanterre-la-Folie and Villiers-sur-Marne and between Nanterre-la-Folie and Tournan.
  The last VONY train, departing from Nanterre-la-Folie, is scheduled at 10:41 p.m.
  The last NOVY train, departing from Villiers-sur-Marne, is scheduled at 7:19 p.m.
  The last TONU train, departing from Nanterre-la-Folie, is scheduled at 10:26 p.m. 
  The last NATU train, departing from Tournan, is scheduled at 9:53 p.m.
  A replacement bus service is provided, with stops at the intermediate stations.
  Reason : rail works (track maintenance between Paris and Nogent, and electrical installations between Nogent and Gretz).

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