The average bus between Buc and Trappes takes 45 min and the fastest bus takes 35 min. There is a bus service every few hours from Buc to Trappes. 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 Buc and Trappes. The earliest departure is at 5:03 AM in the morning, and the last departure from Buc is at 8:07 PM which arrives into Trappes at 8:45 PM. All services require a transfer at Place Etienne Marcel and take an average of 45 min. The schedules shown below are for the next available departures.

55 min • 1 change

39 min • 1 change

39 min • 1 change

43 min • 1 change

55 min • 1 change

39 min • 1 change

39 min • 1 change

43 min • 1 change

1h 4m • 1 change

1h 5m • 1 change

36 min • 1 change

37 min • 1 change

35 min • 1 change

56 min • 1 change

46 min • 1 change

43 min • 1 change
Want to know about travelling from Buc to Trappes? 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 Buc to Trappes. However, there are services departing from Buc station and arriving at Trappes station via Place Etienne Marcel. The journey, including transfers, takes approximately 45 min.
Buc to Trappes bus services, operated by Saint-Quentin-en-Yvelines, depart from ZI Nord station.
Buc to Trappes bus services, operated by Saint-Quentin-en-Yvelines, arrive at Chambre de Commerce et d'Industrie station.
The distance between Buc and Trappes is 7.9 km. The road distance is 13 km.
You can take a bus from ZI Nord to Chambre de Commerce et d'Industrie via Place Etienne Marcel and Etienne Marcel in around 45 min.