The average bus between Guyancourt and Gif-sur-Yvette takes 1h 2m and the fastest bus takes 48 min. There is a bus service every few hours from Guyancourt to Gif-sur-Yvette. 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 Gif-sur-Yvette. The earliest departure is at 6:36 AM in the morning, and the last departure from Guyancourt is at 8:19 PM which arrives into Gif-sur-Yvette at 9:11 PM. All services require a transfer at Gare de Saint-Rémy-lès-Chevreuse and take an average of 1h 2m. The schedules shown below are for the next available departures.

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Want to know about travelling from Guyancourt to Gif-sur-Yvette? 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 Gif-sur-Yvette. However, there are services departing from Guyancourt station and arriving at Gif-sur-Yvette station via Gare de Saint-Rémy-lès-Chevreuse. The journey, including transfers, takes approximately 1h 2m.
Guyancourt to Gif-sur-Yvette bus services, operated by Lignes Île-de-France Ouest, depart from Jean Monnet station.
Guyancourt to Gif-sur-Yvette bus services, operated by Lignes Île-de-France Ouest, arrive at Gare de Saint-Rémy-lès-Chevreuse station.
The distance between Guyancourt and Gif-sur-Yvette is 10.9 km. The road distance is 21 km.
Saint-Quentin-en-Yvelines operates a bus from Jean Monnet to Gare de Saint-Rémy-lès-Chevreuse every 30 minutes, and the journey takes 35 min.