The average bus between Garches and Montesson takes 1h 10m and the fastest bus takes 50 min. The bus runs at least 2 times per hour from Garches to Montesson. 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 every 30 minutes between Garches and Montesson. The earliest departure is at 6:18 AM in the morning, and the last departure from Garches is at 10:27 PM which arrives into Montesson at 6:15 AM. All services require a transfer, and take on average 1h 10m. The schedules shown below are for the next available departures.

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1h 8m • 1 changeWant to know about travelling from Garches to Montesson? 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 Garches to Montesson. However, there are services departing from Les Croissants station and arriving at Aristide Briand station via Rueil-Malmaison RER station. The journey, including transfers, takes approximately 1h 10m.
Garches to Montesson bus services, operated by Réseau de bus Défense et Saint-Cloud, depart from Les Croissants station.
Garches to Montesson bus services, operated by Argenteuil - Boucles de Seine, arrive at Aristide Briand station.
The distance between Garches and Montesson is 8.1 km. The road distance is 11 km.
You can take a bus from Les Croissants to Aristide Briand via Gare de Rueil-Malmaison in around 1h 8m.