The average bus between Cesson and Les Ulis takes 2h 13m and the fastest bus takes 1h 41m. There is an hourly bus service from Cesson to Les Ulis. 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 Les Ulis. The earliest departure is at 4:50 AM at night, and the last departure from Cesson is at 10:12 PM which arrives into Les Ulis at 6:28 AM. All services require a transfer at Carré Trait d'Union and take an average of 2h 13m. The schedules shown below are for the next available departures.


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2h 10m • 2 changesWant to know about travelling from Cesson to Les Ulis? 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 Les Ulis. 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 13m.
Cesson to Les Ulis bus services, operated by Île-de-France Mobilités - Sénart, depart from Cesson Gare station.
Cesson to Les Ulis bus services, operated by Paris-Saclay Mobilités, arrive at Rond-Point de Mondétour station.
The distance between Cesson and Les Ulis is 34.5 km. The road distance is 42 km.
You can take a bus from Cesson Gare to Rond-Point de Mondétour via Carré Trait d'Union, Gare du Bras de Fer, and Gare du Bras de Fer - Évry Génopôle in around 2h 2m.