The average train between Trappes and Montesson takes 1h 2m and the fastest train takes 55 min. The train runs at least 2 times per hour from Trappes to Montesson. 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 Montesson. The earliest departure is at 12:26 AM at night, and the last departure from Trappes is at 11:26 PM which arrives into Montesson at 12:28 AM. All services require a transfer, and take on average 1h 2m. The schedules shown below are for the next available departures.

55 min • 1 change
58 min • 1 change
56 min • 1 change
1h • 1 change
59 min • 1 change
1h 4m • 1 change
57 min • 1 change
57 min • 1 change
59 min • 1 change
1h 4m • 1 change
57 min • 1 change
57 min • 1 change
59 min • 1 change
1h 4m • 1 change
57 min • 1 change
57 min • 1 change
1h • 1 change
1h • 1 change
1h • 1 change
59 min • 1 change
5h 30m • 1 change
1h • 1 change
1h • 1 change
1h • 1 change
5h 31m • 1 change
59 min • 1 change
1h 4m • 1 change
57 min • 1 changeWant to know about travelling from Trappes to Montesson? 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 Montesson. However, there are services departing from Trappes station and arriving at Le Vésinet - Le Pecq station via La Défense station. The journey, including transfers, takes approximately 1h 2m.
Trappes to Montesson train services, operated by Transilien – SNCF Voyageurs, depart from Trappes station.
Trappes to Montesson train services, operated by Réseau Express Régional (RER Paris), arrive at Le Vésinet - Le Pecq station.
The distance between Trappes and Montesson is 17.4 km. The road distance is 22 km.
You can take a train from Trappes to Le Vésinet - Le Pecq via La Défense in around 57 min.