The average bus between Petaluma and San Carlos takes 3h 7m and the fastest bus takes 2h 28m. There is a bus service every few hours from Petaluma to San Carlos. 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 Petaluma and San Carlos. The earliest departure is at 3:30 AM at night, and the last departure from Petaluma is at 10:00 PM which arrives into San Carlos at 12:57 AM. All services require a transfer at San Francisco Airport and take an average of 3h 7m. The schedules shown below are for the next available departures.


3h 3m • 2 changes


3h 18m • 2 changes


3h 3m • 2 changes


2h 38m • 2 changes


2h 38m • 2 changes


2h 38m • 2 changes


3h 1m • 2 changes


3h 36m • 2 changes


2h 38m • 2 changes


2h 38m • 2 changes


3h 1m • 2 changes


3h 36m • 2 changes


3h 21m • 2 changes


2h 53m • 2 changes


3h 3m • 2 changes


3h 3m • 2 changes
Want to know about travelling from Petaluma to San Carlos? 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 Petaluma to San Carlos. However, there are services departing from Petaluma station and arriving at San Carlos station via San Francisco Airport. The journey, including transfers, takes approximately 3h 7m.
Petaluma to San Carlos bus services, operated by Groome Transportation, depart from Petaluma station.
Petaluma to San Carlos bus services, operated by Groome Transportation, arrive at El Camino Real & San Carlos Ave station.
The distance between Petaluma and San Carlos is 87.1 km. The road distance is 104 km.
You can take a bus from Petaluma to El Camino Real & San Carlos Ave via San Francisco Airport, SFO Airport Terminal 3-Lower Level, and Millbrae Transit Center-Bay C1 in around 2h 50m.