The average train between Poissy and Osny takes 1h 20m and the fastest train takes 1h 2m. There is an hourly train service from Poissy to Osny. 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 hourly between Poissy and Osny. The earliest departure is at 5:26 AM in the morning, and the last departure from Poissy is at 8:23 PM which arrives into Osny at 9:43 PM. All services require a transfer, and take on average 1h 20m. The schedules shown below are for the next available departures.

1h 21m • 1 change

1h 16m • 1 change

1h 22m • 1 change

1h 28m • 1 change

1h 21m • 1 change

1h 18m • 1 change

1h 5m • 1 change

1h 22m • 1 change

1h 21m • 1 change

1h 18m • 1 change

1h 5m • 1 change

1h 22m • 1 change
Want to know about travelling from Poissy to Osny? 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 Poissy to Osny. However, there are services departing from Poissy station and arriving at Osny station via Gare Saint-Lazare. The journey, including transfers, takes approximately 1h 20m.
Poissy to Osny train services, operated by Transilien – SNCF Voyageurs, depart from Poissy station.
Poissy to Osny train services, operated by Transilien – SNCF Voyageurs, arrive at Osny station.
The distance between Poissy and Osny is 15.7 km. The road distance is 60 km.
You can take a train from Poissy to Osny via Gare Saint-Lazare in around 1h 29m.