The average bus between Santa Ana and Diamond Bar takes 1h 50m and the fastest bus takes 1h 43m. There is a bus service every few hours from Santa Ana 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 hourly between Santa Ana and Diamond Bar. The earliest departure is at 5:00 AM in the morning, and the last departure from Santa Ana is at 9:00 PM which arrives into Diamond Bar at 10:45 PM. All services require a transfer at Ring-Brea Mall and take an average of 1h 50m. The schedules shown below are for the next available departures.

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change

1h 44m • 1 change
Want to know about travelling from Santa Ana 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 Santa Ana to Diamond Bar. However, there are services departing from Santa Ana station and arriving at Diamond Bar station via Ring-Brea Mall. The journey, including transfers, takes approximately 1h 50m.
Santa Ana to Diamond Bar bus services, operated by OCTA, depart from The Depot At Santa Ana Dock 3 station.
Santa Ana to Diamond Bar bus services, operated by OCTA, arrive at Diamond Bar Blvd and Sunset Crossing Rd station.
The distance between Santa Ana and Diamond Bar is 31.9 km. The road distance is 38 km.
You can take a bus from The Depot At Santa Ana Dock 3 to Diamond Bar Blvd and Sunset Crossing Rd via Ring-Brea Mall and Brea Mall in around 2h 17m.