The average train between Colombes and Cachan takes 30 min and the fastest train takes 27 min. The train runs at least 8 times per hour from Colombes to Cachan. 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 10 minutes between Colombes and Cachan. The earliest departure is at 5:08 AM in the morning, and the last departure from Colombes is at 1:14 PM which arrives into Cachan at 1:44 PM. All services require a transfer, and take on average 30 min. The schedules shown below are for the next available departures.

30 min • 1 change

28 min • 1 change

34 min • 1 change

27 min • 1 change
Want to know about travelling from Colombes to Cachan? 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 Colombes to Cachan. However, there are services departing from Colombes station and arriving at Cachan station via Châtelet - Les Halles. The journey, including transfers, takes approximately 30 min.
Colombes to Cachan train services, operated by Réseau Express Régional (RER Paris), depart from La Défense station.
Colombes to Cachan train services, operated by Réseau Express Régional (RER Paris), arrive at Arcueil - Cachan station.
The distance between Colombes and Cachan is 14.9 km. The road distance is 17 km.
You can take a train from La Défense to Arcueil - Cachan via Châtelet - Les Halles in around 29 min.