The average train between Cergy-Pontoise and Sannois takes 33 min and the fastest train takes 25 min. The train runs at least 2 times per hour from Cergy-Pontoise to Sannois. 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 30 minutes between Cergy-Pontoise and Sannois. The earliest departure is at 4:36 AM at night, and the last departure from Cergy-Pontoise is at 11:36 PM which arrives into Sannois at 12:14 AM. All services require a transfer, and take on average 33 min. The schedules shown below are for the next available departures.

34 min • 1 change

29 min • 1 change

33 min • 1 change

29 min • 1 change
Want to know about travelling from Cergy-Pontoise to Sannois? 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 Sannois. However, there are services departing from Cergy-Pontoise station and arriving at Sannois station via Ermont - Eaubonne. The journey, including transfers, takes approximately 33 min.
Cergy-Pontoise to Sannois train services, operated by Transilien – SNCF Voyageurs, depart from Pontoise station.
Cergy-Pontoise to Sannois train services, operated by Transilien – SNCF Voyageurs, arrive at Ermont - Eaubonne station.
The distance between Cergy-Pontoise and Sannois is 14.9 km. The road distance is 17 km.
Transilien – SNCF Voyageurs operates a train from Pontoise to Ermont - Eaubonne every 30 minutes. Tickets cost €3–5 and the journey takes 19 min. Société Nationale des Chemins de fer Français (SNCF) also services this route every 30 minutes.