The average bus between Palo Alto and Castro takes 2h 46m and the fastest bus takes 2h 3m. The bus runs at least 2 times per hour from Palo Alto to Castro. 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 every 30 minutes between Palo Alto and Castro. The earliest departure is at 6:50 AM in the morning, and the last departure from Palo Alto is at 11:50 PM which arrives into Castro at 5:25 AM. All services require a transfer, and take on average 2h 46m. The schedules shown below are for the next available departures.

2h 42m • 1 change

2h 47m • 1 change

2h 42m • 1 change

2h 45m • 1 change
Want to know about travelling from Palo Alto to Castro? 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 Palo Alto to Castro. However, there are services departing from Palo Alto station and arriving at Castro station via Daly City BART-Bay 3. The journey, including transfers, takes approximately 2h 46m.
Palo Alto to Castro bus services, operated by SamTrans, depart from Palo Alto Transit Ctr-Bay 9 station.
Palo Alto to Castro bus services, operated by SamTrans, arrive at Daly City BART-Bay 3 station.
The distance between Palo Alto and Castro is 43.7 km. The road distance is 53 km.
SamTrans operates a bus from Palo Alto Transit Ctr-Bay 9 to Daly City BART-Bay 3 every 15 minutes. Tickets cost $2–4 and the journey takes 2h 9m.