The average bus between Cachan and Guyancourt takes 1h 2m and the fastest bus takes 52 min. There is a bus service every few hours from Cachan to Guyancourt. 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 Cachan and Guyancourt. The earliest departure is at 5:43 AM in the morning, and the last departure from Cachan is at 8:36 PM which arrives into Guyancourt at 9:36 PM. All services require a transfer at Général de Gaulle and take an average of 1h 2m. The schedules shown below are for the next available departures.

1h 2m • 1 change

1h 12m • 1 change

1h • 1 change

54 min • 1 change

1h 4m • 1 change

55 min • 1 change

1h 6m • 1 change

54 min • 1 change

1h 4m • 1 change

55 min • 1 change

1h 6m • 1 change
Want to know about travelling from Cachan to Guyancourt? 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 Cachan to Guyancourt. However, there are services departing from Cachan station and arriving at Guyancourt station via Général de Gaulle. The journey, including transfers, takes approximately 1h 2m.
Cachan to Guyancourt bus services, operated by Seine Orly, depart from Mairie de Cachan station.
Cachan to Guyancourt bus services, operated by Seine Orly, arrive at La Batterie station.
The distance between Cachan and Guyancourt is 19.4 km. The road distance is 24 km.
You can take a bus from Mairie de Cachan to La Batterie via Général de Gaulle and Parc André Malraux in around 1h 26m.