The average train between Trappes and Chatou takes 57 min and the fastest train takes 51 min. The train runs at least 2 times per hour from Trappes to Chatou. 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 30 minutes between Trappes and Chatou. The earliest departure is at 12:26 AM at night, and the last departure from Trappes is at 11:26 PM which arrives into Chatou at 12:24 AM. All services require a transfer, and take on average 57 min. The schedules shown below are for the next available departures.

5h 26m • 1 change
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56 min • 1 change
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5h 26m • 1 change
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56 min • 1 changeWant to know about travelling from Trappes to Chatou? 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 Chatou. However, there are services departing from Trappes station and arriving at Chatou - Croissy station via La Défense station. The journey, including transfers, takes approximately 57 min.
Trappes to Chatou train services, operated by Transilien – SNCF Voyageurs, depart from Trappes station.
Trappes to Chatou train services, operated by Réseau Express Régional (RER Paris), arrive at Chatou - Croissy station.
The distance between Trappes and Chatou is 16.5 km. The road distance is 23 km.
You can take a train from Trappes to Chatou - Croissy via La Défense in around 53 min.