The average bus between Trappes and Orsay takes 2h 16m and the fastest bus takes 1h 37m. The bus service runs several times per day from Trappes to Orsay. 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 twice daily between Trappes and Orsay. The earliest departure is at 12:45 AM at night, and the last departure from Trappes is at 6:16 PM which arrives into Orsay at 8:21 PM. All services require a transfer at Saint-Quentin - Souterrain quai K and take an average of 2h 16m. The schedules shown below are for the next available departures.


7h 34m • 2 changes


2h 12m • 2 changes


2h 14m • 2 changes


2h 15m • 2 changes
Want to know about travelling from Trappes to Orsay? 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 Orsay. However, there are services departing from Trappes station and arriving at Orsay station via Christ de Saclay. The journey, including transfers, takes approximately 2h 16m.
Trappes to Orsay bus services, operated by Saint-Quentin-en-Yvelines, depart from Saint-Quentin - Gare Routière des Prés station.
Trappes to Orsay bus services, operated by Saint-Quentin-en-Yvelines, arrive at République station.
The distance between Trappes and Orsay is 15.2 km. The road distance is 30 km.
You can take a bus from Chambre de Commerce et d'Industrie to République via Saint-Quentin - Souterrain quai K, Saint-Quentin - Gare Routière des Prés, and Christ de Saclay in around 1h 32m.