The average bus between Cachan and Gare Montparnasse takes 31 min and the fastest bus takes 21 min. The bus runs at least 4 times per hour from Cachan to Gare Montparnasse. 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 15 minutes between Cachan and Gare Montparnasse. The earliest departure is at 12:50 AM at night, and the last departure from Cachan is at 8:25 PM which arrives into Gare Montparnasse at 8:57 PM. All services require a transfer, and take on average 31 min. The schedules shown below are for the next available departures.

32 min • 1 change

32 min • 1 change

47 min • 1 change

47 min • 1 change
Want to know about travelling from Cachan to Gare Montparnasse? 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 Cachan to Gare Montparnasse. However, there are services departing from Cachan station and arriving at Gare Montparnasse station via Porte d'Orléans. The journey, including transfers, takes approximately 31 min.
Cachan to Gare Montparnasse bus services, operated by Pompadour, depart from Wilson - Provigny station.
Cachan to Gare Montparnasse bus services, operated by Pompadour, arrive at Gare Montparnasse station.
The distance between Cachan and Gare Montparnasse is 5.2 km. The road distance is 5 km.
You can take a bus from Wilson - Provigny to Gare Montparnasse via Porte d'Orléans in around 31 min.