The average bus between Millbrae and Petaluma takes 2h 1m and the fastest bus takes 1h 45m. There is a bus service every few hours from Millbrae to Petaluma. 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 Millbrae and Petaluma. The earliest departure is at 12:03 AM at night, and the last departure from Millbrae is at 11:38 PM which arrives into Petaluma at 2:00 AM. All services require a transfer at SFO Airport Terminal 2-Lower Level and take an average of 2h 1m. The schedules shown below are for the next available departures.

2h 12m • 1 change

1h 57m • 1 change

2h 12m • 1 change

1h 57m • 1 change

2h 25m • 1 change

2h 25m • 1 change

2h 25m • 1 change

1h 51m • 1 change

1h 58m • 1 change

1h 58m • 1 change

1h 57m • 1 change

1h 55m • 1 change

1h 57m • 1 change

1h 58m • 1 change

1h 58m • 1 change

1h 57m • 1 change
Want to know about travelling from Millbrae to Petaluma? 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 Millbrae to Petaluma. However, there are services departing from Millbrae station and arriving at Petaluma station via Petaluma. The journey, including transfers, takes approximately 2h 1m.
Millbrae to Petaluma bus services, operated by SamTrans, depart from San Francisco Airport station.
Millbrae to Petaluma bus services, operated by SamTrans, arrive at Petaluma station.
The distance between Millbrae and Petaluma is 73.8 km. The road distance is 90 km.
Groome Transportation operates a bus from San Francisco Airport to Petaluma hourly. Tickets cost $25–55 and the journey takes 1h 30m.