The average bus between Simi Valley and Diamond Bar takes 8h 42m and the fastest bus takes 3h 42m. The bus service runs several times per day from Simi Valley to Diamond Bar. 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 twice daily between Simi Valley and Diamond Bar. The earliest departure is at 5:07 AM in the morning, and the last departure from Simi Valley is at 6:31 PM which arrives into Diamond Bar at 7:48 AM. All services require a transfer at Chatsworth Metrolink Station and take an average of 8h 42m. The schedules shown below are for the next available departures.


3h 42m • 2 changes


3h 56m • 2 changes
Arrives next day


13h 47m • 2 changes


3h 42m • 2 changes


3h 56m • 2 changes
Arrives next day


13h 47m • 2 changes


3h 42m • 2 changes


3h 56m • 2 changes
Arrives next day


13h 47m • 2 changes
Want to know about travelling from Simi Valley to Diamond Bar? 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 Simi Valley to Diamond Bar. However, there are services departing from Simi Valley station and arriving at Diamond Bar station via Metrolink Chatsworth. The journey, including transfers, takes approximately 8h 42m.
Simi Valley to Diamond Bar bus services, operated by Simi Valley Transit, depart from First Street and Cochran Street station.
Simi Valley to Diamond Bar bus services, operated by Simi Valley Transit, arrive at Cal Poly Pomona Admin station.
The distance between Simi Valley and Diamond Bar is 93.3 km. The road distance is 124 km.
You can take a bus from First Street and Cochran Street to Cal Poly Pomona Admin via Chatsworth Metrolink Station and Olympic Blvd and Flower St in around 4h 47m.