The average bus between Chatou and Saclay takes 2h 25m and the fastest bus takes 1h 47m. There is a bus service every few hours from Chatou to Saclay. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Chatou and Saclay. The earliest departure is at 6:00 AM in the morning, and the last departure from Chatou is at 8:48 PM which arrives into Saclay at 11:01 PM. All services require a transfer at Gare de Saint-Cloud and take an average of 2h 25m. The schedules shown below are for the next available departures.


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2h 16m • 2 changesWant to know about travelling from Chatou to Saclay? 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 bus from Chatou to Saclay. However, there are services departing from Chatou station and arriving at Saclay station via Gare de Saint-Cloud. The journey, including transfers, takes approximately 2h 25m.
Chatou to Saclay bus services, operated by Argenteuil - Boucles de Seine, depart from Rueil-Malmaison RER station.
Chatou to Saclay bus services, operated by Argenteuil - Boucles de Seine, arrive at Gare de Jouy-en-Josas station.
The distance between Chatou and Saclay is 17.7 km. The road distance is 34 km.
You can take a bus from Rueil-Malmaison RER to Mairie de Saclay via Gare de Saint-Cloud, Saint-Cloud, Chaville Rive Droite, Gare de Chaville Rive Droite, and Gare de Jouy-en-Josas in around 2h 24m.