The average bus between Gare Montparnasse and Boissy-sous-Saint-Yon takes 2h 8m and the fastest bus takes 1h 24m. There is a bus service every few hours from Gare Montparnasse to Boissy-sous-Saint-Yon. 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 Gare Montparnasse and Boissy-sous-Saint-Yon. The earliest departure is at 5:35 AM in the morning, and the last departure from Gare Montparnasse is at 10:16 PM which arrives into Boissy-sous-Saint-Yon at 6:15 AM. All services require a transfer at Porte d'Orléans and take an average of 2h 8m. The schedules shown below are for the next available departures.


1h 40m • 2 changes


1h 42m • 2 changes


1h 51m • 2 changes


1h 57m • 2 changes


1h 40m • 2 changes


1h 42m • 2 changes


1h 51m • 2 changes


1h 57m • 2 changes


1h 40m • 2 changes


1h 42m • 2 changes


1h 51m • 2 changes


1h 57m • 2 changes
Want to know about travelling from Gare Montparnasse to Boissy-sous-Saint-Yon? 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 Gare Montparnasse to Boissy-sous-Saint-Yon. However, there are services departing from Gare Montparnasse station and arriving at Boissy-sous-Saint-Yon station via Porte d'Étampes. The journey, including transfers, takes approximately 2h 8m.
Gare Montparnasse to Boissy-sous-Saint-Yon bus services, operated by Régie Autonome des Transports Parisiens (RATP), depart from Porte d'Orléans station.
Gare Montparnasse to Boissy-sous-Saint-Yon bus services, operated by Régie Autonome des Transports Parisiens (RATP), arrive at Porte d'Étampes station.
The distance between Gare Montparnasse and Boissy-sous-Saint-Yon is 33.6 km. The road distance is 56 km.
Cœur d’Essonne / Transdev Cœur Essonne operates a bus from Porte d'Orléans to Porte d'Étampes every 30 minutes, and the journey takes 1h 8m.