The average bus between Diamond Bar and Ontario Mills takes 1h 39m and the fastest bus takes 1h 11m. There is an hourly bus service from Diamond Bar to Ontario Mills. 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 Diamond Bar and Ontario Mills. The earliest departure is at 12:09 AM at night, and the last departure from Diamond Bar is at 8:46 PM which arrives into Ontario Mills at 10:13 PM. All services require a transfer at Pomona Transit Center and take an average of 1h 39m. The schedules shown below are for the next available departures.

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1h 11m • 1 changeWant to know about travelling from Diamond Bar to Ontario Mills? 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 Ontario Mills. However, there are services departing from Diamond Bar Blvd and Sunset Crossing Rd station and arriving at Ontario Mills Mall station via Pomona Transit Center station. The journey, including transfers, takes approximately 1h 39m.
Diamond Bar to Ontario Mills bus services, operated by Foothill Transit, depart from Diamond Bar Blvd and Sunset Crossing Rd station.
Diamond Bar to Ontario Mills bus services, operated by Omnitrans, arrive at Ontario Mills Mall station.
The distance between Diamond Bar and Ontario Mills is 24.3 km. The road distance is 29 km.
You can take a bus from Diamond Bar Blvd and Sunset Crossing Rd to Ontario Mills via Pomona Transit Center and Ontario Mills Mall in around 1h 49m.