Line U
running late?
Live traffic and next trains on Transilien Line U (La Verrière ↔ La Défense).
🔄 Updated at 03:36
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Line U: disrupted traffic
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Line U delays: is the line disrupted?
This page checks live whether Line U (Line U, from La Verrière to La Défense) has a delay, breakdown or disruption: passenger incident, engineering works, signal failure, traffic regulation… The status and message come from Île-de-France Mobilités' real-time traffic info, not from an estimate. Pick your station to see the next train in each direction.
👉 See also every disrupted line, live.
Line U: the essentials
- 🚉 15 stations, from La Verrière to La Défense.
- ⏱ End-to-end journey: ≈ 43 min.
- 🔁 A train every ~21 min during the day (weekdays).
- 🕐 On weekdays, first departure around 05:20, last around 21:15 (planned timetable).
- 📍 Towns served: La Verrière, Trappes, Montigny-le-Bretonneux, Saint-Cyr-l'École, Versailles, Chaville, Sèvres, Saint-Cloud, Suresnes, Puteaux, Coignières, Les Essarts-le-Roi…
Connections
Stations on Line U: next trains
- La Verrière
- Trappes
- Saint-Quentin en Yvelines - Montigny-le-Bretonneux
- Saint-Cyr
- Versailles Chantiers
- Chaville Rive Droite
- Sèvres - Ville-d'Avray
- Saint-Cloud
- Suresnes Mont Valérien
- Puteaux
- La Défense
- Coignières
- Les Essarts-le-Roi
- Le Perray
- Rambouillet
Frequently asked questions — Line U
How can I tell if Line U is delayed?
Open this page: the live status of Line U appears straight away, based on Île-de-France Mobilités' official traffic info (“IT'S A MESS” when it's disrupted, with the reason and the announced end time, “ALL GOOD” otherwise). Then pick your station for the next trains.
When is the next train on Line U?
Pick your station: the next trains appear in real time in each direction (towards La Verrière, La Défense), refreshed every 30 seconds.
What time is the first and last train on Line U?
According to the planned timetable, on weekdays the first train leaves at 05:20 from La Verrière and at 06:15 from La Défense; the last leaves at 20:20 from La Verrière and at 21:15 from La Défense. On Saturday nights, the last departure is around 00:59. For your station, ask the AI: “last train from …”.
How long does it take from La Verrière to La Défense?
About 43 minutes end to end on Line U (15 stations), based on official IDFM timetables. For a specific trip between two stations, use the journey time calculator.
How often does Line U run?
During the day on weekdays, a train comes every 21 minutes on average. The actual next trains are shown on this page.
Is Line U often disrupted?
Like any line on the network, Line U has its share of incidents, engineering works and traffic regulation. This page shows the actual status right now (updated continuously), not an average.