The average bus between Cesson and Orsay takes 2h 30m and the fastest bus takes 1h 50m. There is an hourly bus service from Cesson 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 hourly between Cesson and Orsay. The earliest departure is at 4:50 AM at night, and the last departure from Cesson is at 10:12 PM which arrives into Orsay at 6:36 AM. All services require a transfer at Carré Trait d'Union and take an average of 2h 30m. The schedules shown below are for the next available departures.



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2h 27m • 3 changesWant to know about travelling from Cesson 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 Cesson to Orsay. However, there are services departing from Cesson Gare station and arriving at Rond-Point de Mondétour station via Carré Trait d'Union station. The journey, including transfers, takes approximately 2h 30m.
Cesson to Orsay bus services, operated by Île-de-France Mobilités - Sénart, depart from Cesson Gare station.
Cesson to Orsay bus services, operated by Paris-Saclay Mobilités, arrive at Rond-Point de Mondétour station.
The distance between Cesson and Orsay is 33.9 km. The road distance is 44 km.
You can take a bus from Cesson Gare to République via Carré Trait d'Union, Gare du Bras de Fer, Gare du Bras de Fer - Évry Génopôle, and Rond-Point de Mondétour in around 2h 10m.