The average train between Cergy-Pontoise and Boulogne-Billancourt takes 43 min and the fastest train takes 38 min. The train runs at least 3 times per hour from Cergy-Pontoise to Boulogne-Billancourt. 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 20 minutes between Cergy-Pontoise and Boulogne-Billancourt. The earliest departure is at 12:11 AM at night, and the last departure from Cergy-Pontoise is at 9:11 PM which arrives into Boulogne-Billancourt at 9:53 PM. All services require a transfer, and take on average 43 min. The schedules shown below are for the next available departures.

53 min • 1 change

47 min • 1 change

41 min • 1 change

39 min • 1 change
Want to know about travelling from Cergy-Pontoise to Boulogne-Billancourt? 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 Cergy-Pontoise to Boulogne-Billancourt. However, there are services departing from Cergy-Pontoise station and arriving at Boulogne-Billancourt station via La Défense. The journey, including transfers, takes approximately 43 min.
Cergy-Pontoise to Boulogne-Billancourt train services, operated by Réseau Express Régional (RER Paris), depart from Cergy Préfecture station.
Cergy-Pontoise to Boulogne-Billancourt train services, operated by Réseau Express Régional (RER Paris), arrive at La Défense station.
The distance between Cergy-Pontoise and Boulogne-Billancourt is 25.6 km. The road distance is 30 km.
Réseau Express Régional (RER Paris) operates a train from Cergy Préfecture to La Défense every 15 minutes. Tickets cost €4–6 and the journey takes 28 min.