The average bus between Union Square and Greenbrae takes 1h 10m and the fastest bus takes 1h. There is a bus service every few hours from Union Square to Greenbrae. 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 Union Square and Greenbrae. The earliest departure is at 5:43 AM in the morning, and the last departure from Union Square is at 6:33 PM which arrives into Greenbrae at 7:43 PM. All services require a transfer at Mission St & 4th St and take an average of 1h 10m. The schedules shown below are for the next available departures.

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Want to know about travelling from Union Square to Greenbrae? 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 Union Square to Greenbrae. However, there are services departing from Union Square station and arriving at Greenbrae station via San Rafael Transit Center-Platform B. The journey, including transfers, takes approximately 1h 10m.
Union Square to Greenbrae bus services, operated by Golden Gate Transit, depart from Mission St & 4th St station.
Union Square to Greenbrae bus services, operated by Golden Gate Transit, arrive at San Rafael Transit Center-Platform B station.
The distance between Union Square and Greenbrae is 20.6 km. The road distance is 37 km.
Golden Gate Transit operates a bus from Mission St & 4th St to San Rafael Transit Center-Platform B every 30 minutes. Tickets cost $6–9 and the journey takes 52 min.