The average bus between Trappes and Poissy takes 1h and the fastest bus takes 38 min. There is a bus service every few hours from Trappes to Poissy. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Trappes and Poissy. The earliest departure is at 12:56 AM at night, and the last departure from Trappes is at 8:46 PM which arrives into Poissy at 9:56 PM. All services require a transfer at Saint-Quentin - Souterrain quai K and take an average of 1h. The schedules shown below are for the next available departures.

1h 5m • 1 change

1h 7m • 1 change

1h 5m • 1 change

58 min • 1 change

3h 56m • 1 change

53 min • 1 change

53 min • 1 change

45 min • 1 change

38 min • 1 change

43 min • 1 change

50 min • 1 change

50 min • 1 change
Want to know about travelling from Trappes to Poissy? 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 bus from Trappes to Poissy. However, there are services departing from Trappes station and arriving at Poissy station via Saint-Quentin - Souterrain quai K. The journey, including transfers, takes approximately 1h.
Trappes to Poissy bus services, operated by Saint-Quentin-en-Yvelines, depart from Chambre de Commerce et d'Industrie station.
Trappes to Poissy bus services, operated by Saint-Quentin-en-Yvelines, arrive at Gare Routière Nord station.
The distance between Trappes and Poissy is 17.4 km. The road distance is 30 km.
You can take a bus from Chambre de Commerce et d'Industrie to Gare Routière Nord via Saint-Quentin - Souterrain quai K and Saint-Quentin - Gare routière Paul Delouvrier in around 1h 12m.