The average bus between Diamond Bar and Rancho Cucamonga takes 1h 22m and the fastest bus takes 1h 3m. There is a bus service every few hours from Diamond Bar to Rancho Cucamonga. 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 Rancho Cucamonga. The earliest departure is at 7:17 AM in the morning, and the last departure from Diamond Bar is at 9:06 PM which arrives into Rancho Cucamonga at 10:24 PM. All services require a transfer, and take on average 1h 22m. The schedules shown below are for the next available departures.

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1h 22m • 1 changeWant to know about travelling from Diamond Bar to Rancho Cucamonga? 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 Rancho Cucamonga. However, there are services departing from Cal Poly Pomona Admin station and arriving at Foothill @ Archibald station via Montclair Transit Center station. The journey, including transfers, takes approximately 1h 22m.
Diamond Bar to Rancho Cucamonga bus services, operated by Foothill Transit, depart from Cal Poly Pomona Admin station.
Diamond Bar to Rancho Cucamonga bus services, operated by Omnitrans, arrive at Foothill @ Archibald station.
The distance between Diamond Bar and Rancho Cucamonga is 21.8 km. The road distance is 26 km.
You can take a bus from Cal Poly Pomona Admin to Foothill @ Archibald via Montclair Transit Center in around 1h 21m.