The average bus between Rancho Cucamonga and Diamond Bar takes 1h 11m and the fastest bus takes 1h 1m. There is an hourly bus service from Rancho Cucamonga 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 Rancho Cucamonga and Diamond Bar. The earliest departure is at 5:50 AM in the morning, and the last departure from Rancho Cucamonga is at 8:24 PM which arrives into Diamond Bar at 9:29 PM. All services require a transfer, and take on average 1h 11m. The schedules shown below are for the next available departures.

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1h 10m • 1 changeWant to know about travelling from Rancho Cucamonga 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 Rancho Cucamonga to Diamond Bar. However, there are services departing from Foothill @ Archibald station and arriving at Cal Poly Pomona Admin station via Montclair Transit Center station. The journey, including transfers, takes approximately 1h 11m.
Rancho Cucamonga to Diamond Bar bus services, operated by Omnitrans, depart from Foothill @ Archibald station.
Rancho Cucamonga to Diamond Bar bus services, operated by Foothill Transit, arrive at Cal Poly Pomona Admin station.
The distance between Rancho Cucamonga and Diamond Bar is 21.8 km. The road distance is 27 km.
You can take a bus from Foothill @ Archibald to Cal Poly Pomona Admin via Montclair Transit Center in around 1h 17m.