The average bus between Guyancourt and Cergy takes 1h 33m and the fastest bus takes 1h 16m. There is a bus service every few hours from Guyancourt to Cergy. 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 Guyancourt and Cergy. The earliest departure is at 5:18 AM in the morning, and the last departure from Guyancourt is at 8:43 PM which arrives into Cergy at 9:59 PM. All services require a transfer at Saint-Quentin - Gare Routière des Prés and take an average of 1h 33m. The schedules shown below are for the next available departures.

1h 28m • 1 change

1h 41m • 1 change

1h 35m • 1 change

1h 36m • 1 change

1h 24m • 1 change

1h 31m • 1 change

1h 22m • 1 change

1h 34m • 1 change

1h 24m • 1 change

1h 31m • 1 change

1h 22m • 1 change

1h 34m • 1 change
Want to know about travelling from Guyancourt to Cergy? 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 Guyancourt to Cergy. However, there are services departing from Guyancourt station and arriving at Cergy station via Gare de Cergy Préfecture - Quai O. The journey, including transfers, takes approximately 1h 33m.
Guyancourt to Cergy bus services, operated by Saint-Quentin-en-Yvelines, depart from Saint-Quentin - Gare routière Paul Delouvrier station.
Guyancourt to Cergy bus services, operated by Saint-Quentin-en-Yvelines, arrive at Gare de Cergy Préfecture - Quai O station.
The distance between Guyancourt and Cergy is 29.3 km. The road distance is 51 km.
Lignes Île-de-France Ouest operates a bus from Saint-Quentin - Gare routière Paul Delouvrier to Gare de Cergy Préfecture - Quai O hourly, and the journey takes 1h 7m.