The average bus between Diamond Bar and Riverside takes 8h 16m and the fastest bus takes 2h 7m. The bus service runs several times per day from Diamond Bar to Riverside. 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 Diamond Bar and Riverside. The earliest departure is at 3:00 PM in the afternoon, and the last departure from Diamond Bar is at 9:04 PM which arrives into Riverside at 7:33 AM. All services require a transfer at Richton 5091 at Montclair TransCenter and take an average of 8h 16m. The schedules shown below are for the next available departures.


2h 35m • 2 changes


2h 7m • 2 changes
Arrives next day


10h 29m • 2 changes


2h 35m • 2 changes


2h 7m • 2 changes
Arrives next day


10h 29m • 2 changes


2h 35m • 2 changes


2h 7m • 2 changes
Arrives +3 days


2d 10h • 2 changes
Want to know about travelling from Diamond Bar to Riverside? 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 Diamond Bar to Riverside. However, there are services departing from Diamond Bar station and arriving at Riverside station via Montclair Transit Center. The journey, including transfers, takes approximately 8h 16m.
Diamond Bar to Riverside bus services, operated by Foothill Transit, depart from Cal Poly Pomona Admin station.
Diamond Bar to Riverside bus services, operated by Foothill Transit, arrive at University + Market station.
The distance between Diamond Bar and Riverside is 39.1 km. The road distance is 60 km.
You can take a bus from Cal Poly Pomona Admin to Magnolia + Beatty via Richton 5091 at Montclair TransCenter and University + Market in around 2h 47m.