The average train between Trappes and Palaiseau takes 48 min and the fastest train takes 38 min. The train runs at least 2 times per hour from Trappes to Palaiseau. 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 Trappes and Palaiseau. The earliest departure is at 5:26 AM in the morning, and the last departure from Trappes is at 11:26 PM which arrives into Palaiseau at 5:36 AM. All services require a transfer, and take on average 48 min. The schedules shown below are for the next available departures.

40 min • 1 change

40 min • 1 change

40 min • 1 change

40 min • 1 change
Want to know about travelling from Trappes to Palaiseau? 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 Trappes to Palaiseau. However, there are services departing from Trappes station and arriving at Palaiseau station via Versailles Chantiers. The journey, including transfers, takes approximately 48 min.
Trappes to Palaiseau train services, operated by Transilien – SNCF Voyageurs, depart from Trappes station.
Trappes to Palaiseau train services, operated by Transilien – SNCF Voyageurs, arrive at Massy - Palaiseau station.
The distance between Trappes and Palaiseau is 18.1 km. The road distance is 25 km.
You can take a train from Trappes to Massy - Palaiseau via Versailles Chantiers in around 48 min.