The average bus between Union Square and Mill Valley takes 1h 40m and the fastest bus takes 1h 27m. The bus service runs several times per day from Union Square to Mill Valley. 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 5 times a day between Union Square and Mill Valley. The earliest departure is at 2:21 PM in the afternoon, and the last departure from Union Square is at 6:06 PM which arrives into Mill Valley at 7:34 PM. All services require a transfer at Mission St & 4th St and take an average of 1h 40m. The schedules shown below are for the next available departures.

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Want to know about travelling from Union Square to Mill Valley? 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 Mill Valley. However, there are services departing from Union Square station and arriving at Mill Valley station via Marin City Hub-Donahue St & Terners Dr. The journey, including transfers, takes approximately 1h 40m.
Union Square to Mill Valley bus services, operated by Golden Gate Transit, depart from Mission St & 4th St station.
Union Square to Mill Valley bus services, operated by Golden Gate Transit, arrive at E Blithedale Ave & Hill St station.
The distance between Union Square and Mill Valley is 17.9 km. The road distance is 27 km.
You can take a vehicle from Union Square to E Blithedale Ave & Hill St via Mission St & 4th St and Marin City Hub-Donahue & Terners in around 1h 41m.