The average train between Roissy Charles de Gaulle and Gare Montparnasse takes 46 min and the fastest train takes 40 min. The train runs at least 4 times per hour from Roissy Charles de Gaulle 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.
Trains run every 15 minutes between Roissy Charles de Gaulle and Gare Montparnasse. The earliest departure is at 10:49 AM in the morning, and the last departure from Roissy Charles de Gaulle is at 10:01 PM which arrives into Gare Montparnasse at 10:50 PM. All services require a transfer at Denfert-Rochereau and take an average of 46 min. The schedules shown below are for the next available departures.

48 min • 1 change

48 min • 1 change

44 min • 1 change

44 min • 1 change
Want to know about travelling from Roissy Charles de Gaulle 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 train from Roissy Charles de Gaulle to Gare Montparnasse. However, there are services departing from Roissy Charles de Gaulle station and arriving at Gare Montparnasse station via Denfert-Rochereau. The journey, including transfers, takes approximately 46 min.
Roissy Charles de Gaulle to Gare Montparnasse train services, operated by Réseau Express Régional (RER Paris), depart from Parc des Expositions station.
Roissy Charles de Gaulle to Gare Montparnasse train services, operated by Réseau Express Régional (RER Paris), arrive at Denfert-Rochereau station.
The distance between Roissy Charles de Gaulle and Gare Montparnasse is 21.7 km. The road distance is 28 km.
Réseau Express Régional (RER Paris) operates a train from Parc des Expositions to Denfert-Rochereau every 15 minutes. Tickets cost €4–7 and the journey takes 38 min.