The average train between Trappes and Marly-le-Roi takes 33 min and the fastest train takes 26 min. The train runs at least 3 times per hour from Trappes to Marly-le-Roi. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 20 minutes between Trappes and Marly-le-Roi. The earliest departure is at 12:26 AM at night, and the last departure from Trappes is at 11:47 PM which arrives into Marly-le-Roi at 12:17 AM. All services require a transfer at Saint-Cyr and take an average of 33 min. The schedules shown below are for the next available departures.

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29 min • 1 changeWant to know about travelling from Trappes to Marly-le-Roi? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Trappes to Marly-le-Roi. However, there are services departing from Trappes station and arriving at L'Etang - Les Sablons station via Saint-Cyr station. The journey, including transfers, takes approximately 33 min.
Trappes to Marly-le-Roi train services, operated by Transilien – SNCF Voyageurs, depart from Trappes station.
Trappes to Marly-le-Roi train services, operated by Régie Autonome des Transports Parisiens (RATP), arrive at L'Etang - Les Sablons station.
The distance between Trappes and Marly-le-Roi is 11.4 km. The road distance is 14 km.
You can take a train from Trappes to L'Étang-la-Ville via Saint-Cloud in around 55 min.