Transport in Paris and Île-de-France: RER and Metro disruptions from April 20 to 26, 2026

A new week of disruptions is ahead for the Paris and Île-de-France public transport network from Monday, 20 April to Sunday, 26 April 2026, the first week of school holidays. The RATP and the SNCF are continuing their modernization work, highlighted by the start of major projects on Line 4 of the metro, between Châtelet and Barbès-Rochechouart, running until May 1. The T14 tram will see unusual daytime interruptions throughout the week. New work also kicks off on the Transilien Line K this weekend. From the metro to the RER, including Transilien and the tram, here’s a briefing on all disruptions to expect this week.

Which Metro and Tram Lines Are Disrupted This Week?

On the Paris metro front, three lines are experiencing disruptions:

• Line 3: until May 12 inclusive, service is suspended between Gallieni and Gambetta due to construction. The long-running project on the eastern section of the line continues.


• Line 3bis: until May 10 inclusive, on Sundays from 10:15 PM, service is suspended across the entire line due to works. The Sunday night works continue.


• Line 4: from April 20 to May 1 inclusive, service will be suspended between Châtelet and Barbès-Rochechouart due to maintenance work. A new major project kicks off this week and will run until early May!

On the tram network, the usual lines remain disrupted with unusual daytime interruptions on the T14:

• T1 : Service remains disrupted between Asnières-Quatre Routes and Gare de Saint-Denis, with outages across the rest of the line caused by damage at Île-Saint-Denis by a third party. As a reminder, in May 2025 a boat struck the bridge connecting Saint-Denis to Île-Saint-Denis. Resumption is targeted for late summer 2026.
• T4 : From April 20 to May 7 inclusive, on weekdays from 10:55 p.m., service will be suspended between Gargan and Aulnay-sous-Bois due to works. From April 25 to 26 inclusive, on the weekend from 9:15 p.m., service will be suspended between Gargan and Aulnay-sous-Bois for works. A new worksite is launching this week.
• T7 : Due to ongoing works, the elevator at Orly Airport station is out of service. A note for passengers with reduced mobility.
• T14 : On April 20, from Monday to Friday, 10:00 a.m. to 4:00 p.m., service will be suspended along the entire line due to works. From April 20 to 24, Monday to Friday, 11:00 a.m. to 12:00 p.m., service will again be suspended along the entire line for works. Caution: daytime outages all week during the holidays!

What disruptions are expected on the RER from April 20 to 26?

The RER lines are facing major disruptions, as ongoing night-time works on numerous projects continue:

• RER A: work continues on weekdays and weekends.
  • Until April 30 inclusive, from 9:45 PM, service is suspended between La Varenne-Chennevières and Boissy-Saint-Léger due to works.
  • Until April 29 inclusive, Monday to Friday from 9:50 PM, service is suspended between Maisons-Laffitte and Cergy-Le Haut due to works.
    
    
• RER B: the usual nightly works continue.
  • Until April 30 inclusive, Monday to Friday from 10:45 PM, service is suspended between Châtelet-Les Halles and Mitry-Claye/Aéroport Charles de Gaulle 2-TGV due to works.
    
    
• RER C: a line particularly affected, with numerous weekday and weekend interruptions, and stations not served on weekends.
  • Sunday from 9:30 PM, service is suspended between Gare d'Austerlitz and Saint-Martin-d'Étampes due to works.
  • From 9:00 PM Sunday, service is suspended between Dourdan and Gare d'Austerlitz due to works.
  • Saturday from 11:00 PM, service is suspended between Gare d'Austerlitz and Dourdan due to works.
  • Until April 30 inclusive, Monday to Friday from 10:00 PM, service is suspended between Gare d'Austerlitz and Pont de Rungis Aéroport d'Orly due to works.
  • Until April 30 inclusive, Monday to Friday from 9:40 PM, service is suspended between Gare d'Austerlitz and Saint-Martin-d'Étampes due to works, and between Pontoise and Avenue Henri Martin due to works.
  • From Monday to Friday from 9:00 PM, service is suspended between Gare d'Austerlitz and Dourdan due to works.
  • Until April 26 inclusive, on weekends, service is suspended between Ivry-sur-Seine and Massy-Palaiseau due to works.
  • Until April 24 inclusive, Monday to Friday from 9:10 PM, service is suspended between Saint-Quentin-en-Yvelines-Montigny-le-Bretonneux and Javel/Versailles Château Rive Gauche and Javel due to works.
  • Until April 26 inclusive, on weekends, some stops are not served at Choisy-le-Roi, Villeneuve-le-Roi, Ablon, Athis-Mons and Juvisy due to works. Replacement bus service. Note: five stations not served this weekend!
  
  
• RER D: nocturnal works continue, with at least one station not served on weekends.
  • Until April 24 inclusive, Monday to Friday from 11:15 PM, service is suspended between Gare de Lyon and Melun/Corbeil-Essonnes due to works.
  • Until May 24 inclusive, on weekends, the stop is not served at Stade de France Saint-Denis toward Creil due to works.
  • From Monday, March 30 to Thursday, April 30 (weekdays and excluding holidays), starting at 11:35 PM, service is suspended between Creil and Paris Gare du Nord due to network works.
    
    
• RER E: works continue with early-evening interruptions and Saturday service impacts.
  • From April 20 to 24 inclusive, Monday to Friday from 9:55 PM, service will be interrupted between Nanterre-La Folie and Tournan due to works.
  • From Monday to Friday from 10:00 PM, service will be interrupted between Nanterre-La Folie and Chelles-Gournay due to works.
  • Saturday from 10:25 PM, service will be interrupted between Nanterre-La Folie and Tournan due to works.
  • From 10:45 PM, service will be interrupted between Nanterre-La Folie and Chelles-Gournay due to works.

Which Transilien lines are affected from April 20 to 26?

The Transilien network is keeping up its string of overnight works with a new project on line K this weekend:

• Ligne H : Through May 23, on weekdays after 11:50 PM, service is suspended between Épinay-Villetaneuse and Persan-Beaumont/Luzarches for network works. From April 24 at 3:00 AM to April 26, service will be interrupted between Montsoult-Maffliers and Persan-Beaumont due to additional works. A new chantier is planned this weekend.
  
  
• Ligne J : Through April 24, on weekdays after 9:40 PM, service is suspended between Gare Saint-Lazare and Mantes-la-Jolie due to ongoing works. The long-running project is nearing completion this week.
  
  
• Ligne K : From April 25 to 26, service will be halted between Gare du Nord and Mitry-Claye due to works. A new chantier is planned this weekend with a complete disruption.
  
  
• Ligne L : Through April 29, on weekdays after 10:45 PM, service is suspended between Sartrouville and Maisons-Laffitte due to works. Also through April 29, on weekdays after 10:00 PM, service is suspended between Saint-Nom-la-Bretèche Forêt de Marly and Saint-Cloud, and between Saint-Cloud and Versailles Rive Droite due to works. Night-time works continue.
  
  
• Ligne N : Through April 24, on weekdays after 7:45 PM, service is suspended between Gare Montparnasse and Rambouillet due to works. Through April 24, on weekdays after 8:45 PM, service is suspended between Gare Montparnasse and Mantes-la-Jolie due to works. Very early interruptions after 7:45 PM are wrapping up this week.
  
  
• Ligne P : Through April 24, on weekdays after 10:00 PM, service is suspended between Gare de l'Est and Château-Thierry due to works. Through May 1, on weekdays after 9:50 PM, service is suspended between Gare de l'Est and Meaux due to works. Through May 8, on weekdays after 9:45 PM, service is suspended between Gare de l'Est and Provins due to works. From April 20 to 24, on weekdays after 9:30 PM, service will be interrupted between Gare de l'Est and Coulommiers due to works. Saturdays from 10:30 PM, service will be suspended between Gare de l'Est and Coulommiers due to works, and from 10:50 PM between Gare de l'Est and Meaux due to works. The long-running project continues across all branches of the line.
  
  
• Ligne R : Through April 30, on weekdays after 11:15 PM, service is suspended between Gare de Lyon and Montargis/Montereau due to works.
  
  
• Ligne U : Through April 24, on weekdays after 8:00 PM, service is suspended between La Défense and La Verrière due to works. Very early evening interruptions wrap up this week.
  

How to plan your travel for the week ahead?

This week, April 20–26, 2026, the first week of school holidays, demands real planning as major works get underway on Line 4 of the metro, between Châtelet and Barbès-Rochechouart, until May 1. This key north–south line through Paris will be interrupted over a substantial central stretch, so plan alternative routes via lines 7 or 13, or by bus. The T14 tram will see unusual daytime interruptions throughout the holiday week, from 10 a.m. to 4 p.m. on Monday and from 11 a.m. to 12 p.m. from Monday to Friday. The RER C will skip five stations this weekend (Choisy-le-Roi, Villeneuve-le-Roi, Ablon, Athis-Mons and Juvisy) with replacement buses. The Line K of Transilien will be completely suspended this weekend between Gare du Nord and Mitry-Claye. Several long-running works are nearing completion this week (lines J, N and U). Check regularly the apps Bonjour RATP and SNCF Connect for information in real time. If you had planned outing this weekend, allow extra time and check your schedules in advance.

In short, this week, April 20–26, 2026, marks the start of a major construction project on the Line 4 metro that will run until early May. The T14 tram will be shut during the day all week for the holidays. A new project kicks off for the T4 tram, running until May 7. The Line K will be entirely suspended this weekend. The RER C will be particularly affected, with five stations out of service this weekend. Good news: several long-running works are wrapping up (Transilien Lines J, N and U). The Line 3 of the metro continues its work between Gallieni and Gambetta until mid-May. If you must travel late at night, consider the Noctilien night buses, which keep running across Paris and Île-de-France around the clock. Have a great holiday and good luck navigating this week of works!

• To be read
• This week's top deals in Paris and Île-de-France, April 20–26, 2026.

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